CN204825978U - Manhole cover - Google Patents
Manhole cover Download PDFInfo
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- CN204825978U CN204825978U CN201520402104.5U CN201520402104U CN204825978U CN 204825978 U CN204825978 U CN 204825978U CN 201520402104 U CN201520402104 U CN 201520402104U CN 204825978 U CN204825978 U CN 204825978U
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- pivotal axis
- locating part
- spacing
- cover plate
- passage
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Abstract
The utility model provides a manhole cover, including well seat, locating part and linkage piece, linkage is including first pivotal axis and second pivotal axis, but the linkage piece by first pivotal axis pivot be coupled to the well seat on, the second pivotal axis is gone up in the linkage and to be rotated around the axle center of second pivotal axis, the second pivotal axis includes spacing district, and the spacing district of second pivotal axis includes wide section and narrow portion, spacing draw -in groove is drawn together to the well stationary ladle, and spacing draw -in groove includes the shaft hole and extend to the outer pivotal axis passageway of spacing draw -in groove from the shaft hole, and the diameter in shaft hole is greater than the wide section in the spacing district of second pivotal axis, and the width of pivotal axis passageway is greater than the width of the narrow portion of second pivotal axis and is lighter than second pivotal axis wide section's width. This manhole cover through one of them pivotal axis of control around the rotatory position in its axle center, can open or close linkage and the other part is connected with the linkage piece around the pivot of first pivotal axis, need not be with the help of the instrument in the external world, the mechanism is simple, high efficiency, reliably.
Description
Technical field
The utility model relates to municipal apparatus field, particularly relates to a kind of well lid.
Background technology
Conventional hinge generally includes two main parts or the blade of single pivotal axis and pivotal axis connection.This hinge usually only has closed and opens two states, cannot carry out spacing to the opening angle of main part or blade.Simultaneously do not need spacing in again without the need to can be very convenient closed or open completely efficiently by other instruments (as spanner etc.).
Equipment such as such as " well lids " just needs this limit hinge, and when in the situations such as waterlogging, the current roof fall in sewer, may make the well lid cover plate of closure state be subject to the impact of sewer stream.Need a kind of limit hinge, the cover plate of well lid can not be washed open completely, but limited at certain opening angle.Can either effectively discharge sewer pressure, the situation that personnel will be caused to fall because well lid cover plate is rushed to open again.
Chinese patent ZL201310149762.3 " multi-functional automatic closedown well lid ", wherein discloses a kind of hinge means.In use procedure, it is due to " the junction plate other end be not connected with cover plate encounters housing bottom surface; make the angle of cover plate and cover plate seat be in 80 ° all the time ", when needs complete open manhole cover time, " need plate pull-up; with spanner, the second bearing pin is gone to predetermined angular; the caliper portion that the cross section on second bearing pin two ends is rectangle is corresponding with the open slot on axis pin base axis hole, at this moment, upset cover plate; second bearing pin is separated with axis pin base, and cover plate is turned over to 180 °." this design centerboard only plays the effect fixing the second bearing pin relative position in axle sleeve in spacing process; even if pull-up plate; cover plate also cannot be able to rotate because encountering housing bottom surface; must be need spanner auxiliary rotary second bearing pin; the caliper portion that the cross section on second bearing pin two ends just can be made to be rectangle is corresponding with the open slot on axis pin base axis hole, thus be opened completely by cover plate.Above-mentioned hinge means complex structure, complex operation and need could realize change that is spacing and opening by instrument.
Summary of the invention
The technical problems to be solved in the utility model, be to provide a kind of cover plate open angle that can limit well lid, its structure is simple, and assists without the need to extraneous instrument, and operator just can at restriction open angle state and the well lid converting using state completely between opening.
The utility model is achieved in that a kind of well lid, comprise well seat, cover plate, locating part, STATEMENT OF FEDERALLY SPONSORED and limiting section, STATEMENT OF FEDERALLY SPONSORED comprises the first pivotal axis and the second pivotal axis, described STATEMENT OF FEDERALLY SPONSORED is coupled on well seat by the first pivotal axis pivotly, described STATEMENT OF FEDERALLY SPONSORED is coupled on cover plate pivotly by the second pivotal axis, described cover plate comprises interlock passage, locating part, through the interlock passage of cover plate, links mutually to make the rotation of described locating part around the second pivotal axis axle center and the rotation of cover plate around the second pivotal axis axle center;
Second pivotal axis can rotate around the axle center of the second pivotal axis in STATEMENT OF FEDERALLY SPONSORED; Second pivotal axis comprises spacing zone and locating part passage, the spacing zone of the second pivotal axis comprises wide portion and narrow portion, locating part, through the locating part passage of the second pivotal axis, links mutually to make the rotation of described locating part around the second pivotal axis axle center and the rotation of the second pivotal axis around the second pivotal axis axle center;
Well seat comprises spacing draw-in groove, on the mobile route of limiting card slot second pivotal axis in STATEMENT OF FEDERALLY SPONSORED pivotable process, spacing draw-in groove comprises axis hole and extends to the pivotal axis passage spacing draw-in groove from axis hole, the diameter of axis hole is greater than the wide portion of the second pivotal axis spacing zone, the width of pivotal axis passage is greater than the width of the second pivotal axis narrow portion and is less than the width in the second wide portion of pivotal axis, with make the second pivotal axis narrow portion by pivotal axis passage wide portion not by pivotal axis passage;
Limiting section is fixed relative to well seat, described locating part is movable relative to the second pivotal axis axle center, to make the rotation of locating part around the second pivotal axis axle center, there is stroke process or the two states without limiting section, wherein, when being in the state of locating part stroke through limiting section, locating part can abut limiting section, to limit the rotation of locating part around the second pivotal axis axle center.
Adopt above structure, because the rotation of locating part around the second pivotal axis axle center and the rotation of cover plate around the second pivotal axis axle center link mutually, so can by controlling the rotation around the second pivotal axis axle center (as cover plate opens certain angle relative to well seat) of cover plate, the position that corresponding adjustment locating part rotates around the second pivotal axis axle center, link because locating part to rotate around the second pivotal axis axle center to rotate around the second pivotal axis axle center with the second pivotal axis again, and then correspondence adjusts the position of rotation of the second pivotal axis.After certain angle opened by cover plate, locating part abuts against on limiting section, and due to the restriction that limiting section further rotates locating part, cover plate cannot continue to open.Thus achieve the object of restriction cover plate open angle.If now, movable locating part, make locating part stroke without limiting section, then the rotation due to locating part is unrestricted, and cover plate also can continue to rotate.
According to the difference of limiting section setting position, the rotation of the second pivotal axis around the second pivotal axis axle center can be limited in different rotary angle.Under certain situation, arranging of limiting section can before the narrow portion of locating part aims at pivotal axis passage, namely when locating part makes its stroke through limiting section, in cover plate rotary course, locating part first abuts against limiting section, now, only have movable locating part to make its stroke without limiting section, can rotation cover be continued, then when the narrow portion of the second pivotal axis aims at pivotal axis passage, just can lift cover plate, make the narrow portion of the second pivotal axis by pivotal axis passage, thus open well lid completely.
Adopt the structure of locating part passage, the linkage structure of locating part and the second pivotal axis is simple and reliable, and difficulty of processing is minimum, is convenient to change, keep in repair locating part.Meanwhile, the length of locating part through the locating part passage of the second pivotal axis can be adjusted as required, make the effect of locating part abundanter.
Adopt the structure of interlock passage, the linkage structure of locating part and cover plate is simple and reliable, and difficulty of processing is minimum, is convenient to change, keep in repair locating part.Meanwhile, the length of locating part through the locating part passage of the second pivotal axis can be adjusted as required, make the effect of locating part abundanter.
This well lid has the hinged degree of freedom (hinged degree of freedom alleged in the utility model refers to the state of two objects be hinged relative to the mutual pivotable of pin joint) of two, comprise the first pivotal axis and the second pivotal axis, wherein by controlling one of them pivotal axis (i.e. the second pivotal axis) position that rotates around its axle center, can open or close STATEMENT OF FEDERALLY SPONSORED and the miscellaneous part (as cover plate etc.) that is connected with the STATEMENT OF FEDERALLY SPONSORED pivotable around the first pivotal axis.Meanwhile, due to the interlock of locating part and the second pivotal axis, can control the position that the second pivotal axis rotates around its axle center flexibly, and not need the instrument (as spanner etc.) by the external world, mechanism is simple, efficient, reliable.
The spacing fit system of locating part and limiting section is a lot, wherein a kind of length of stretching out the second pivotal axis for adjusting locating part, and particularly, spacing spacing refers to the distance between the axis hole of described spacing draw-in groove to limiting section; Locating part extension elongation refers to described locating part stretches out the second pivotal axis length near the side of limiting section; Wherein, when being in the state of locating part stroke through limiting section, locating part extension elongation is equal to or greater than spacing spacing; When being in locating part stroke without the state of limiting section, locating part extension elongation is less than spacing spacing.
In some embodiments, when described locating part abuts limiting section, the center of gravity of cover plate is in the side away from the first pivotal axis relative to the second pivotal axis.Adopt above structure, when cover plate is opened due to External Force Acting (as because people is for pull or after air-flow or current jack-up cover plate, after external force is eliminated, cover plate due to the effect of deadweight can voluntarily under lid.Thus achieve the effect preventing personnel's accidental fall.
Second pivotal axis spacing zone can be elliptical cylinder-shape or cuboid etc., particularly, the wide portion of spacing zone and narrow portion meet following condition, the second described pivotal axis wide portion external surface is greater than the distance of the second pivotal axis narrow portion external surface to axle center to the distance in axle center, and is less than or equal to the radius in limiting card fluted shaft hole.
Preferably, described limiting section is arranged on well seat.Limiting section can the mode such as with bolts, welding, grafting or splicing detachable or to be non-removablely arranged on well seat.In other examples, limiting section also can not be arranged on well seat.
Preferably, described locating part is that locating part is along the line direction straight reciprocating motion between locating part passage and interlock passage relative to the activity in the second pivotal axis axle center.
In certain embodiments, well seat is provided with lockhole, and described locating part, relative to the activity in the second pivotal axis axle center, makes locating part enter away from one end of the second pivotal axis or depart from lockhole.Especially, if described locating part is that locating part is along the line direction straight reciprocating motion between locating part passage and interlock passage relative to the activity in the second pivotal axis axle center.When cover plate is close on well seat, the corresponding locating part in the position of lockhole is away from one end of the second pivotal axis, locating part moves towards the direction away from the second pivotal axis, then locating part enters in the lockhole on well seat away from one end of the second pivotal axis, and cover plate is locked on well seat.When cover plate opened by needs, locating part moves towards near the direction of the second pivotal axis, then locating part is away from the lockhole on one end disengaging well seat of the second pivotal axis, is unlocked, now can opens cover plate between cover plate and well seat.Adopt above structure, utilize locating part to achieve locking between cover plate and well seat and unblock.Meanwhile, locating part had both had the function of snap close, had again spacing function, and structure is more simple, reliable.
Locating part side described in the utility model is provided with tooth bar, and the corresponding locating part rack position of cover plate offers gear and enters through hole.When using, the cogged crank of band or screwdriver can be inserted gear and enter through hole, wheel and rack is engaged, like this when cover plate and well seat close up, by the cogged crank of operating band or screwdriver, just can locating part in movable cover plate.
Further, also comprise at least one locking device, it is arranged on cover plate or locating part passage or links on the face of one or several the adjacent locating part in passage, described locking device comprises elastic component and locking piece, the first end of described elastic component is attached to be coupled in cover plate or locating part passage or interlock passage on one or several, and the second end of elastic component leans promotion locking piece towards locating part; Described locating part is provided with at least one detent, and the protruding end of locking piece relative to the detent engagement of locating part or can depart from.Adopt above structure, by adjusting the position of locating part, the protruding end of locking piece relative to the detent engagement of locating part or can depart from, thus when locating part is positioned at certain position (certain stroke of walking), relative stable locating part position, also plays the effect of prompting operator locating part travel position.
Preferably, when locating part extension elongation is equal to or greater than spacing spacing, the locating part position corresponding to the protruding end of locking piece arranges at least one detent.Adopt above structure, when locating part stroke is through the state of limiting section, the protruding end of locking piece can be engaged relative to the detent of locating part, thus relative stable locating part position, prompting operator hinge is in the state of locating part stroke through limiting section.Need to change this state, apply certain power travel limiter.
The utility model includes but not limited to following advantage: whether (1), without the need to extraneous instrument, just can control second pin joint by adjustment cover plate around the anglec of rotation of first pin joint and enable.(2) by the position of adjustment locating part, determine whether it starts position-limiting action, the opening angle (locating part stroke is under the state of limiting section) of cover plate can be limited on the one hand, also can control second pin joint on the other hand and whether enable (position of pivotal axis passage is after the restraining position that limiting section is corresponding).(3) by the setting of locking piece, detent can be set at the certain position of locating part, thus relatively stable when enabling locating part enter precalculated position, operator can obtain certain prompting (such as operator obtains the promptings such as damping sense, sound) simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model well lid is in closed configuration;
Fig. 2 be the utility model well lid be in cover plate (locating part) rotate but the second pivotal axis narrow portion not yet aims at locating part passage, locating part abuts the structural representation under limiting section state;
Fig. 3 is that the utility model well lid is in cover plate (locating part) and rotates but the second pivotal axis narrow portion aims at the structural representation under locating part channel status;
Fig. 4 is that the utility model well lid is in the second pivotal axis narrow portion and passes through to deviate from rear STATEMENT OF FEDERALLY SPONSORED from locating part passage and rotate structural representation state;
Fig. 5 is the structural representation of spacing draw-in groove in the utility model well lid;
Fig. 6 is the structural representation of STATEMENT OF FEDERALLY SPONSORED in the utility model well lid;
Fig. 7 is one of structural representation of the second pivotal axis in the utility model well lid;
Fig. 8 is the structural representation two of the second pivotal axis in the utility model well lid;
Fig. 9 is the side structure schematic diagram of the second pivotal axis in the utility model well lid;
Figure 10 is one of structural representation of limiting section in some embodiments of the utility model well lid;
Figure 11 is the structural representation two of limiting section in some embodiments of the utility model well lid;
Figure 12 is one of structural representation of limiting section in other embodiments of the utility model well lid;
Figure 13 is the structural representation two of limiting section in other embodiments of the utility model well lid;
Figure 14 is the fit system of locating part and limiting section in some embodiments of the utility model well lid;
Figure 15 is the fit system of locating part and limiting section in other embodiments of the utility model well lid;
Figure 16 is the second pivotal axis structural representation with locking device in the utility model well lid;
Figure 17 is the enlarged diagram of a-quadrant in Figure 16;
Figure 18 is the locating part structural representation with locking device in the utility model well lid;
Figure 19 is the structural representation of Turbogrid plates in the utility model well lid;
Figure 20 is the structural representation with the locating part of tooth bar in the utility model well lid;
Description of reference numerals:
1, well seat;
11, spacing draw-in groove;
12, axis hole;
13, pivotal axis passage;
14, grid board slot;
15, lockhole;
2, locating part;
21, tooth bar;
22, gear enters through hole;
3, STATEMENT OF FEDERALLY SPONSORED;
31, the first pivotal axis;
32, the second pivotal axis;
321, spacing zone;
322, wide portion;
323, narrow portion;
324, locating part passage;
4, cover plate;
41, link passage;
5, limiting section;
6, locking device;
61, elastic component;
62, locking piece;
63, first end;
64, the second end;
65, detent;
66, protruding end;
7, Turbogrid plates;
71, latch;
72, frame;
73, grid.
Detailed description of the invention
By describing technology contents of the present utility model, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with embodiment.
Refer to Fig. 1 to Figure 20, for a kind of well lid of the utility model, comprise well seat 1, cover plate 4, locating part 2, STATEMENT OF FEDERALLY SPONSORED 3 and limiting section 5, STATEMENT OF FEDERALLY SPONSORED 3 comprises the first pivotal axis 31 and the second pivotal axis 32, described STATEMENT OF FEDERALLY SPONSORED 3 is coupled on well seat 1 by the first pivotal axis 31 pivotly, described STATEMENT OF FEDERALLY SPONSORED 3 is coupled on cover plate 4 by the second pivotal axis 32 pivotly, described cover plate 4 comprises interlock passage 41, locating part 2 is through the interlock passage 41 of cover plate 4, mutually link to make the rotation of described locating part 2 around the second pivotal axis axle center and the rotation of cover plate 4 around the second pivotal axis axle center,
Second pivotal axis 32 can rotate around the axle center of the second pivotal axis 32 in STATEMENT OF FEDERALLY SPONSORED 3; Second pivotal axis 32 comprises spacing zone 321 and locating part passage 324, the spacing zone 321 of the second pivotal axis comprises wide portion 322 and narrow portion 323, locating part 2, through the locating part passage 324 of the second pivotal axis 32, links mutually to make the rotation of described locating part 2 around the second pivotal axis axle center and the rotation of the second pivotal axis 32 around the second pivotal axis axle center;
Well seat 1 comprises spacing draw-in groove 11, spacing draw-in groove 11 is arranged on the mobile route of STATEMENT OF FEDERALLY SPONSORED 3 pivotable process second pivotal axis 32, spacing draw-in groove 11 comprises axis hole 12 and extends to the pivotal axis passage 13 spacing draw-in groove 11 from axis hole 12, the diameter of axis hole 12 is greater than the wide portion 322 of the second pivotal axis spacing zone, the width of pivotal axis passage 13 is greater than the width of the second pivotal axis narrow portion 323 and is less than the width in the second wide portion 322 of pivotal axis, with make the second pivotal axis narrow portion 323 by pivotal axis passage wide portion 322 not by pivotal axis passage 13;
Limiting section 5 is fixed relative to well seat 1, described locating part 2 is movable relative to the second pivotal axis axle center, to make the rotation of locating part 2 around the second pivotal axis axle center, there is stroke process or the two states without limiting section 5, wherein, when being in the state of locating part stroke through limiting section, locating part 2 can abut limiting section 5, to limit the rotation of locating part 2 around the second pivotal axis 32 axle center.
Adopt above structure, because the rotation of locating part 2 around the second pivotal axis axle center and the rotation of cover plate 4 around the second pivotal axis axle center link mutually, so can by controlling the rotation around the second pivotal axis axle center (as cover plate 4 opens certain angle relative to well seat 1) of cover plate 4, the position that corresponding adjustment locating part 2 rotates around the second pivotal axis axle center, link because locating part 2 to rotate around the second pivotal axis axle center to rotate around the second pivotal axis axle center with the second pivotal axis 32 again, and then correspondence adjusts the position of rotation of the second pivotal axis 32.After certain angle opened by cover plate 4, locating part 2 abuts against on limiting section 5, and due to the restriction that limiting section 5 pairs of locating parts 2 further rotate, cover plate 4 cannot continue to open.Thus achieve the object of restriction cover plate 4 open angle.If now, movable locating part 2, make locating part 2 stroke without limiting section 5, then the rotation due to locating part 2 is unrestricted, and cover plate 4 also can continue to rotate.
According to the difference of limiting section 5 setting position, the rotation of the second pivotal axis 32 around the second pivotal axis axle center can be limited in different rotary angle.Under certain situation, arranging of limiting section 5 can before the narrow portion 323 of locating part 2 aims at pivotal axis passage 13, namely when locating part 2 makes its stroke through limiting section 5, in cover plate 4 rotary course, locating part 2 first abuts against limiting section 5, now, movable locating part 2 is only had to make its stroke without limiting section 5, rotation cover 4 can be continued, then when the narrow portion 323 of the second pivotal axis 32 aims at pivotal axis passage 13, just can lift cover plate 4, make the narrow portion 323 of the second pivotal axis 32 by pivotal axis passage 13, thus open well lid completely.
Adopt the structure of locating part passage 324, the linkage structure of locating part 2 and the second pivotal axis 32 is simple and reliable, and difficulty of processing is minimum, is convenient to change, keep in repair locating part 2.Meanwhile, the length of locating part 2 through the locating part passage 324 of the second pivotal axis 32 can be adjusted as required, make the effect of locating part 2 abundanter.
Adopt the structure of interlock passage 41, locating part 2 is simple and reliable with the linkage structure of cover plate 4, and difficulty of processing is minimum, is convenient to change, keep in repair locating part 2.Meanwhile, the length of locating part 2 through the locating part passage 324 of the second pivotal axis 32 can be adjusted as required, make the effect of locating part 2 abundanter.
This well lid has the hinged degree of freedom (hinged degree of freedom alleged in the utility model refers to the state of two objects be hinged relative to the mutual pivotable of pin joint) of two, comprise the first pivotal axis 31 and the second pivotal axis 32, wherein by controlling one of them pivotal axis (i.e. the second pivotal axis 32) position that rotates around its axle center, can open or close STATEMENT OF FEDERALLY SPONSORED 3 and the miscellaneous part (as cover plate 4 etc.) that is connected with STATEMENT OF FEDERALLY SPONSORED 3 pivotable around the first pivotal axis 31.Meanwhile, due to the interlock of locating part 2 and the second pivotal axis 32, can control the position that the second pivotal axis 32 rotates around its axle center flexibly, and not need the instrument (as spanner etc.) by the external world, mechanism is simple, efficient, reliable.
Locating part 2 is a lot of with the spacing fit system of limiting section 5, as shown in figure 14, wherein a kind of length of stretching out the second pivotal axis 32 for adjusting locating part 2, particularly, spacing spacing refers to the distance between the axis hole 12 of described spacing draw-in groove 11 to limiting section 5; Locating part extension elongation refers to described locating part 2 stretches out the second pivotal axis 32 length near the side of limiting section 5; Wherein, when being in the state of locating part 2 stroke through limiting section 5, locating part extension elongation is equal to or greater than spacing spacing; When being in locating part 2 stroke without the state of limiting section 5, locating part extension elongation is less than spacing spacing.In further embodiments, as shown in figure 15, locating part can relative to second pivotal axis swing, when locating part swing before and after its rotating distance around the second pivotal axis axle center through or without limiting section, it also can realize the transformation of spacing state.
In some embodiments, when described locating part 2 abuts limiting section 5, the center of gravity of cover plate 4 is in the side away from the first pivotal axis 31 relative to the second pivotal axis 32.Adopt above structure, when cover plate 4 is opened due to External Force Acting (as because people is for pull or after air-flow or current jack-up cover plate 4, after external force is eliminated, cover plate 4 due to the effect of deadweight can voluntarily under lid.Thus achieve the effect preventing personnel's accidental fall.
Second pivotal axis 32 spacing zone 321 can be elliptical cylinder-shape or cuboid etc., particularly, wide portion 322 and the narrow portion 323 of spacing zone 321 meet following condition, the second described pivotal axis 32 wide portion 322 external surface is greater than the distance of the second pivotal axis 32 narrow portion 323 external surface to axle center to the distance in axle center, and is less than or equal to the radius of spacing draw-in groove 11 axis hole 12.
Preferably, described limiting section 5 is arranged on well seat 1.Limiting section 5 can the mode such as with bolts, welding, grafting or splicing detachable or to be non-removablely arranged on well seat 1.In other examples, limiting section 5 also can not be arranged on well seat 1.As shown in figures 10-13, in certain embodiments, limiting section can be boss, cross bar, groove, inserted sheet etc.
Preferably, as shown in figure 14, described locating part 2 is that locating part 2 is along the line direction straight reciprocating motion between locating part passage 324 and interlock passage 41 relative to the activity in the second pivotal axis axle center.
As shown in Figure 19,20, in certain embodiments, well seat 1 is provided with lockhole 15, and described locating part 2, relative to the activity in the second pivotal axis axle center, makes locating part 2 enter away from one end of the second pivotal axis 32 or depart from lockhole 15.Especially, if described locating part 2 is that locating part 2 is along the line direction straight reciprocating motion between locating part passage 324 and interlock passage 41 relative to the activity in the second pivotal axis axle center.When cover plate 4 is close on well seat 1, the corresponding locating part 2 in the position of lockhole 15 is away from one end of the second pivotal axis 32, locating part 2 moves towards the direction away from the second pivotal axis 32, then locating part 2 enters in the lockhole 15 on well seat 1 away from one end of the second pivotal axis 32, and cover plate 4 is locked on well seat 1.When cover plate 4 opened by needs, locating part 2 moves towards near the direction of the second pivotal axis 32, then locating part 2 is away from the lockhole on one end disengaging well seat 1 of the second pivotal axis 32, is unlocked, now can opens cover plate 4 between cover plate 4 and well seat 1.Adopt above structure, utilize locating part 2 to achieve locking between cover plate 4 and well seat 1 and unblock.Meanwhile, locating part 2 had both had the function of snap close, had again spacing function, and structure is more simple, reliable.
As shown in figure 20, locating part 2 side described in the utility model is provided with tooth bar 21, and cover plate 4 corresponding locating part 2 tooth bar 21 position offers gear and enters through hole 22.When using, the cogged crank of band or screwdriver can be inserted gear and enter through hole 22, wheel and rack 21 is engaged, like this when cover plate 4 closes up with well seat 1, by the cogged crank of operating band or screwdriver, just can locating part 2 in movable cover plate 4.
As shown in Figure 16 to 18, further, also comprise at least one locking device 6, it is arranged on cover plate 4 or locating part passage 324 or links on the face of one or several the adjacent locating part 2 in passage 41, described locking device 6 comprises elastic component 61 and locking piece 62, the first end 63 of described elastic component 61 is attached to be coupled in cover plate 4 or locating part passage 324 or interlock passage 41 on one or several, and the second end 64 of elastic component 61 leans towards locating part 2 and promotes locking piece 62; Described locating part 2 is provided with at least one detent 65, and the protruding end of locking piece 62 can be engaged relative to the detent 65 of locating part 2 or depart from.Adopt above structure, by adjusting the position of locating part 2, the protruding end 66 of locking piece 62 can be engaged relative to the detent 65 of locating part 2 or depart from, thus when locating part 2 is positioned at certain position (certain stroke of walking), relative stable locating part 2 position, also plays the effect of prompting operator locating part 2 travel position.
Preferably, when locating part extension elongation is equal to or greater than spacing spacing, locating part 2 position corresponding to protruding end 66 of locking piece 62 arranges at least one detent 65.Adopt above structure, when locating part 2 stroke is through the state of limiting section 5, the protruding end 66 of locking piece 62 can be engaged relative to the detent 65 of locating part 2, thus relative stable locating part 2 position, prompting operator hinge is in the state of locating part 2 stroke through limiting section 5.Need to change this state, apply certain power travel limiter 2.
In certain embodiments, insert the latch 71 of Turbogrid plates 7 in the region that well seat 1 and STATEMENT OF FEDERALLY SPONSORED 3 surround, the frame 72 of Turbogrid plates 7 embeds in the grid board slot 14 of well seat 1.If need to take out Turbogrid plates 7 second pivotal axis 32 must be departed from spacing draw-in groove 11, then make STATEMENT OF FEDERALLY SPONSORED 3 rotate around the first pivotal axis 31, thus expose the latch 71 of Turbogrid plates 7, Turbogrid plates 7 can be taken out.Further Turbogrid plates 7 zone line is grid 73, and it is opened for preventing the accident due to cover plate 4, and personnel step on sky and fall in well.Turbogrid plates 7 adopt hard plastics, its can cushion and disperse cover plate 4 and cover plate 4 above external force to the pressure of well seat 1, increase the service life, reduce the noise that sends when well lid receives pressure.
The foregoing is only embodiment of the present utility model; not thereby scope of patent protection of the present utility model is limited; every utilize the utility model manual and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (16)
1. a well lid, comprise well seat, cover plate, locating part, STATEMENT OF FEDERALLY SPONSORED and limiting section, STATEMENT OF FEDERALLY SPONSORED comprises the first pivotal axis and the second pivotal axis, described STATEMENT OF FEDERALLY SPONSORED is coupled on well seat by the first pivotal axis pivotly, described STATEMENT OF FEDERALLY SPONSORED is coupled on cover plate pivotly by the second pivotal axis, described cover plate comprises interlock passage, and locating part, through the interlock passage of cover plate, links mutually to make the rotation of described locating part around the second pivotal axis axle center and the rotation of cover plate around the second pivotal axis axle center;
Second pivotal axis can rotate around the axle center of the second pivotal axis in STATEMENT OF FEDERALLY SPONSORED; Second pivotal axis comprises spacing zone and locating part passage, the spacing zone of the second pivotal axis comprises wide portion and narrow portion, locating part, through the locating part passage of the second pivotal axis, links mutually to make the rotation of described locating part around the second pivotal axis axle center and the rotation of the second pivotal axis around the second pivotal axis axle center;
Well seat comprises spacing draw-in groove, on the mobile route of limiting card slot second pivotal axis in STATEMENT OF FEDERALLY SPONSORED pivotable process, spacing draw-in groove comprises axis hole and extends to the pivotal axis passage spacing draw-in groove from axis hole, the diameter of axis hole is greater than the wide portion of the second pivotal axis spacing zone, the width of pivotal axis passage is greater than the width of the second pivotal axis narrow portion and is less than the width in the second wide portion of pivotal axis, with make the second pivotal axis narrow portion by pivotal axis passage wide portion not by pivotal axis passage;
Limiting section is fixed relative to well seat, described locating part is movable relative to the second pivotal axis axle center, to make the rotation of locating part around the second pivotal axis axle center, there is stroke process or the two states without limiting section, wherein, when being in the state of locating part stroke through limiting section, locating part can abut limiting section, to limit the rotation of locating part around the second pivotal axis axle center.
2. a kind of well lid according to claim 1, is characterized in that, spacing spacing refers to the distance between the axis hole of described spacing draw-in groove to limiting section; Locating part extension elongation refers to described locating part stretches out the second pivotal axis length near the side of limiting section; Wherein, when being in the state of locating part stroke through limiting section, locating part extension elongation is equal to or greater than spacing spacing; When being in locating part stroke without the state of limiting section, locating part extension elongation is less than spacing spacing.
3. a kind of well lid according to claim 1, is characterized in that, when described locating part abuts limiting section, the center of gravity of cover plate is in the side away from the first pivotal axis relative to the second pivotal axis.
4. a kind of well lid according to claim 1, is characterized in that, the second described pivotal axis wide portion external surface is greater than the distance of the second pivotal axis narrow portion external surface to axle center to the distance in axle center, and is less than or equal to the radius in limiting card fluted shaft hole.
5. a kind of well lid according to claim 1, is characterized in that, described limiting section is arranged on well seat.
6. a kind of well lid according to claim 1, is characterized in that, well seat is provided with lockhole, and described locating part, relative to the activity in the second pivotal axis axle center, makes locating part enter away from one end of the second pivotal axis or depart from lockhole.
7. a kind of well lid according to claim 1, is characterized in that, described locating part is that locating part is along the line direction straight reciprocating motion between locating part passage and interlock passage relative to the activity in the second pivotal axis axle center.
8. a kind of well lid according to claim 1, is characterized in that, described locating part side is provided with tooth bar, and the corresponding locating part rack position of cover plate offers gear and enters through hole.
9. according to any well lid described in claim 1 to 8, it is characterized in that, it also comprises at least one locking device, it is arranged on cover plate or locating part passage or links on the face of one or several the adjacent locating part in passage, described locking device comprises elastic component and locking piece, the first end of described elastic component is attached to be coupled in cover plate or locating part passage or interlock passage on one or several, and the second end of elastic component leans promotion locking piece towards locating part; Described locating part is provided with at least one detent, and the protruding end of locking piece relative to the detent engagement of locating part or can depart from.
10. a kind of well lid according to claim 9, is characterized in that, when locating part extension elongation is equal to or greater than spacing spacing, the locating part position corresponding to the protruding end of locking piece arranges at least one detent.
11., according to any well lid described in claim 1 to 8, is characterized in that, insert the latch of Turbogrid plates in the region that well seat and STATEMENT OF FEDERALLY SPONSORED surround, and the frame of Turbogrid plates embeds in the grid board slot of well seat.
12. a kind of well lids according to claim 9, is characterized in that, insert the latch of Turbogrid plates in the region that well seat and STATEMENT OF FEDERALLY SPONSORED surround, and the frame of Turbogrid plates embeds in the grid board slot of well seat.
13. a kind of well lids according to claim 10, is characterized in that, insert the latch of Turbogrid plates in the region that well seat and STATEMENT OF FEDERALLY SPONSORED surround, and the frame of Turbogrid plates embeds in the grid board slot of well seat.
14. a kind of well lids according to claim 11, is characterized in that, Turbogrid plates adopt hard plastics.
15. a kind of well lids according to claim 12, is characterized in that, Turbogrid plates adopt hard plastics.
16. a kind of well lids according to claim 13, is characterized in that, Turbogrid plates adopt hard plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402104.5U CN204825978U (en) | 2015-06-11 | 2015-06-11 | Manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402104.5U CN204825978U (en) | 2015-06-11 | 2015-06-11 | Manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204825978U true CN204825978U (en) | 2015-12-02 |
Family
ID=54683594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520402104.5U Withdrawn - After Issue CN204825978U (en) | 2015-06-11 | 2015-06-11 | Manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204825978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245683A (en) * | 2015-06-11 | 2016-12-21 | 林志国 | A kind of well lid |
-
2015
- 2015-06-11 CN CN201520402104.5U patent/CN204825978U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245683A (en) * | 2015-06-11 | 2016-12-21 | 林志国 | A kind of well lid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20181113 |
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| AV01 | Patent right actively abandoned |