CN203570049U - Manhole door opening and closing device for nuclear power plant - Google Patents
Manhole door opening and closing device for nuclear power plant Download PDFInfo
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- CN203570049U CN203570049U CN201320764247.1U CN201320764247U CN203570049U CN 203570049 U CN203570049 U CN 203570049U CN 201320764247 U CN201320764247 U CN 201320764247U CN 203570049 U CN203570049 U CN 203570049U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 241000276425 Xiphophorus maculatus Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a manhole door opening and closing device for a nuclear power plant. The manhole door opening and closing device comprises a fixed base, a connecting base and a plurality of movable arms, wherein the fixed base is arranged on the peripheral end face of a manhole door; the connecting base is arranged on a manhole cover; the movable arms are hinged in sequence between the fixed base and the connecting base, and are used for pulling the manhole cover out of the inner side of the manhole door or pushing the manhole cover into the manhole door through relative rotation. According to the manhole door opening and closing device for the nuclear power plant, the fixed base is fixedly arranged on the peripheral end face of the manhole door, the connecting base is fixedly arranged on the manhole cover, and the manhole cover is pulled out of the manhole door in a way of being non-parallel to the manhole door through the rotation of the movable arms hinged between the fixed base and the connecting base. The manhole door opening and closing device has the characteristics of flexibility, convenience, safety, reliability and high stability, the labor intensity of workers is lowered greatly, and time is saved for field overhauling work.
Description
Technical field
The utility model relates to a kind of manhole door headstock gear, relates in particular to a kind of nuclear power station manhole door headstock gear.
Background technology
High-pressure feed-water heater system (AHP) adopts extracted steam from turbine heated feed water, collects the hydrophobic of separator (MSR), and incondensable gas is entered to oxygen-eliminating device, thereby reduces steam turbine heat waste, improves generatine set heat efficiency.Every high-pressure feed-water heater forms by hydroecium, tube bundle assembly and cylindrical shell, has an elliptical manhole door on water chamber head, has manhole cover on manhole door, and this manhole cover is in hydroecium inner side, manhole door to be closed.When hydroecium inner member is checked, must utilize Tapper to open manhole cover and just can open this manhole door, just can enter hydroecium after opening manhole door, internals be checked after then dismantling hydroecium demarcation strip.
Conventionally the unlatching of manhole door adopts Tapper.The Tapper of existing use mostly is integrated design, reliability and stability are not high, its repeatedly use or long-time use after easily wearing and tearing or gross distortion, result of use is bad and increase staff's labour intensity, is difficult to guarantee to close in high quality or open manhole door.Once it is not high that manhole door is closed compactness, easily causes the generation of leakage accident, once there is to leak consequence by hardly imaginable.
Utility model content
The technical problems to be solved in the utility model is, a kind of nuclear power station manhole door headstock gear of flexible, safe and reliable, good stability is provided.
The utility model solves the technical scheme that its technical problem adopts: a kind of nuclear power station manhole door headstock gear is provided, comprise for being fixedly mounted on the holder on manhole door peripheral end face, for being fixedly mounted on the Connection Block on manhole cover, and being hinged on successively between described holder and Connection Block, by relatively rotating each other, manhole cover being pulled out or push several lever arms of manhole door with the state of non-parallel manhole door from manhole door inner side.
Preferably, described several lever arm comprise the first lever arm of being hinged on described holder, be hinged on the 3rd lever arm on described Connection Block and be hinged on described the first lever arm and the 3rd lever arm between the second lever arm.
Preferably, the opposite end of described the first lever arm is respectively equipped with the first hinge hole, and the opposite end of described the second lever arm is respectively equipped with the second hinge hole, and the opposite end of described the 3rd lever arm is respectively equipped with the 3rd hinge hole;
Described holder is provided with the first pin-and-hole, by the first bearing pin, is located in the first hinge hole on described the first pin-and-hole and described first lever arm one end described the first lever arm and described holder is hinged;
The other end of described the first lever arm is hinged by the second bearing pin and described the second lever arm, and described the second bearing pin is located in the first hinge hole of the described first lever arm other end and second hinge hole of described second lever arm one end;
The other end of described the second lever arm is hinged by the 3rd bearing pin and described the 3rd lever arm, and described the 3rd bearing pin is located in the second hinge hole of the described second lever arm other end and the 3rd hinge hole of described the 3rd lever arm one end;
The other end of described the 3rd lever arm is hinged by the 4th bearing pin and described Connection Block, and described Connection Block is provided with the second pin-and-hole, and described the 4th bearing pin is located in the 3rd hinge hole and described the second pin-and-hole of described the 3rd lever arm other end.
Preferably, described holder comprises that described the first pin-and-hole is applied on described key seat for being fixedly mounted on the base plate on described manhole door peripheral end face and being connected to the key seat on described base plate.
Preferably, described Connection Block comprises that described the second pin-and-hole is arranged on described articulated slab for being fixedly mounted on the panel on described manhole cover and being vertically connected on the articulated slab on described panel.
Preferably, the opposite end of described the first lever arm is respectively equipped with the first hinged ear seat or the first hinged pipe, and described the first hinge hole is arranged on described the first hinged ear seat or in described the first hinged pipe along the central axis of described the first hinged ear seat or the first hinged pipe;
The opposite end of described the second lever arm is respectively equipped with the second hinged ear seat or the second hinged pipe, and described the second hinge hole is arranged on described the second hinged ear seat or in described the second hinged pipe along the central axis of described the second hinged ear seat or the second hinged pipe.
Preferably, described the 3rd lever arm comprises junction plate, is connected to relative two lip-deep the first articulated jib and second articulated jibs of described junction plate; Described the 3rd hinge hole is separately positioned on described the first articulated jib and the second articulated jib; Described the 3rd lever arm is hinged by described the first articulated jib and described the second lever arm, hinged by described the second articulated jib and described Connection Block.
Preferably, described the second lever arm and described the first articulated jib offer notch on hinged one end, and from the end face middle part of described one end of described the second lever arm, the length direction along described the second lever arm extends and offers to described the second lever arm inner side described notch; Second hinge hole hinged with described the 3rd lever arm is positioned at the relative both sides of described notch opening and is arranged on described one end of described the second lever arm.
Preferably, described the second articulated jib is away from extending and be provided with the 3rd hinged ear seat on one end of described Connection Block, the outer peripheral edges of described the 3rd hinged ear seat are circular arc, are positioned at described the 3rd hinge hole on described the second articulated jib and are applied on described the 3rd hinged ear seat along the central axis of described the 3rd hinged ear seat.
Preferably, described the 3rd lever arm also comprises at least one gusset; Described gusset is fixed on described junction plate with one end, and is connected at least one surface of described the second articulated jib along the length direction of described the second articulated jib.
Nuclear power station manhole door headstock gear of the present utility model, by holder, be fixedly mounted on manhole door peripheral end face, Connection Block is fixedly mounted on manhole cover, by being hinged on the rotation of a plurality of lever arms between holder and Connection Block, manhole cover is pulled out to manhole door or pushed manhole door with non-parallel manhole door, there is the features such as flexible, safe and reliable, good stability, greatly reduce staff's labour intensity, for the time has been saved in on-the-spot service work.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation after the nuclear power station manhole door headstock gear of the utility model one embodiment is installed;
Fig. 2 is the top view of the nuclear power station manhole door headstock gear of the utility model one embodiment;
Fig. 3 is the sectional view of the nuclear power station manhole door headstock gear of the utility model one embodiment;
Fig. 4 a is the structural representation of the first lever arm in the nuclear power station manhole door headstock gear of the utility model one embodiment;
Fig. 4 b is the lateral view of the first lever arm shown in Fig. 4 a;
Fig. 5 a is the structural representation of the second lever arm in the nuclear power station manhole door headstock gear of the utility model one embodiment;
Fig. 5 b is the lateral view of the second lever arm shown in Fig. 5 a;
Fig. 6 is the structural representation of the 3rd lever arm in the nuclear power station manhole door headstock gear of the utility model one embodiment;
Fig. 7 is the structural representation of Connection Block in the nuclear power station manhole door headstock gear of the utility model one embodiment;
Fig. 8 is that Connection Block shown in Fig. 7 is along the sectional view of AA line;
Fig. 9 is the process schematic diagram that the nuclear power station manhole door headstock gear of the utility model one embodiment is opened manhole door.
The specific embodiment
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing and describe the specific embodiment of the present utility model in detail.
As Figure 1-3, the nuclear power station manhole door headstock gear of the utility model one embodiment, comprises holder 1, Connection Block 2 and is hinged on successively the several lever arms between described holder 1 and Connection Block 2; Holder 1 is for being fixedly mounted on the peripheral end face 100 of manhole door 10, and Connection Block 2 is for being fixedly mounted on manhole cover 20; By several lever arms between holder 1 and Connection Block 2, and by relatively rotating each other, manhole door 10 is pulled out or pushed to manhole cover 20 from manhole door 10 inner sides, manhole cover 20 is to be pulled out or push by several lever arms with the state of non-parallel (vertical or inclination) manhole door 10.The articulated manner of these several lever arms, has increased the flexibility of this boring device, and easy to operate, safe and reliable, good stability greatly reduce staff's labour intensity, for the time has been saved in on-the-spot service work.
In nuclear power station, manhole door 20 is to be opened in high-pressure feed-water heater on water chamber head, is generally oval.The manhole cover 20 that manhole door 10 is closed corresponds to ellipse, and size is a bit larger tham the size of manhole door 10.Manhole cover 20 is positioned at hydroecium inner side, from inner side by manhole door 10, closes.Manhole cover 20 is fixedly that the bridge shape door bolt that is connected with manhole cover 20 by two is fastened on the peripheral end face 100 of manhole door 10 and realizes manhole door 10 inner sides.The peripheral end face 100 of the manhole door 10 in above-mentioned refers to the manhole door 10 end plate plate face around that is positioned at of hydroecium.
Several lever arms can comprise the first lever arm 3 of being hinged on holder 1, be hinged on the 3rd lever arm 5 on Connection Block 2 and be hinged on the first lever arm 3 and the 3rd lever arm 5 between the second lever arm 4.The second lever arm 4 is not limited to one, and two or more being hinged on successively between the first lever arm 3 and the 3rd lever arm 5 can be set as required.Hinged can realization by bearing pin between several lever arms and holder 1, Connection Block 2.
Wherein, as Fig. 2,3 and 4b as shown in, the opposite end of the first lever arm 3 is respectively equipped with the first hinge hole 30, holder 1 is provided with the first pin-and-hole 11, by the first bearing pin 6, be located in the first hinge hole 30 on the first pin-and-hole 11 and first lever arm 3 one end, the first lever arm 3 is hinged with holder 1; The other end of the first lever arm 3 is hinged by the second bearing pin 7 and the second lever arm 4.Similarly, as Fig. 2,3 and 5b as shown in, the opposite end of the second lever arm 4 is also respectively equipped with the second hinge hole 40, this second bearing pin 7 is located in the first hinge hole 30 of first lever arm 3 other ends and second hinge hole 40 of second lever arm 4 one end; The other end of the second lever arm 4 is hinged by the 3rd bearing pin 8 and the 3rd lever arm 5.As shown in Fig. 2,3 and 6, the opposite end of the 3rd lever arm 5 is also respectively equipped with the 3rd hinge hole 50, the three bearing pins 8 and is located in the second hinge hole 40 of second lever arm 4 other ends and the 3rd hinge hole 50 of the 3rd lever arm 5 one end; And the other end of the 3rd lever arm 5 is hinged by the 4th bearing pin 9 and Connection Block 2, Connection Block 2 is provided with in the 3rd hinge hole 50 and the second pin-and-hole 21 that the second pin-and-hole 21, the four bearing pins 9 are located in the 3rd lever arm 5 other ends.
Again as Figure 1-3, in the present embodiment, holder 1 comprises base plate 12 and is connected to the key seat 13 on base plate 12, and base plate 12 is for being fixedly mounted on the peripheral end face 100 of manhole door 10, and key seat 13 is for hinged with the first lever arm 3.The first above-mentioned pin-and-hole 11 is applied on key seat 13.Base plate 12 can be fixed on the peripheral end face 100 of manhole door 10 by securing members such as bolts.Preferably, key seat 13 is provided with two, and interval is vertically connected on base plate 12 relatively, is equipped with on the straight line that is centered close to a parallel base plate 12 of the first pin-and-hole 11, two first pin-and-holes 11 in two key seats 13, is convenient to wearing of the first bearing pin 6.For this boring device is used with maximum length, base plate 12 is positioned at the edge of manhole door 10 and is fixedly mounted on the peripheral end face 100 of manhole door 10, therefore, in base plate 12 peripheral shape setting with corresponding manhole door 10 towards the neighboring of manhole door 10, as arc.
As shown in Fig. 4 a and Fig. 4 b, at the opposite end of the first lever arm 3, can be respectively equipped with the first hinged ear seat 31 or the first hinged pipe 32, the first hinge holes 30 is arranged on the first hinged ear seat 31 or in the first hinged pipe 32 along the central axis of the first hinged ear seat 31 or the first hinged pipe 32; The first hinged ear seat 31 or the first hinged pipe 32 can be integrally formed on the first lever arm 3, after being also separately made by being welded together.As shown in Fig. 5 a and Fig. 5 b, the opposite end of the second lever arm 4 also can be respectively equipped with the second hinged ear seat 41 or the second hinged pipe 42, the second hinge holes 40 and be arranged on the second hinged ear seat 41 or in the second hinged pipe 42 along the central axis of the second hinged ear seat 41 or the second hinged pipe 42; The second hinged ear seat 41 or the second hinged pipe 42 can be integrally formed on the second lever arm 4, after being also separately made by being welded together.
In conjunction with Fig. 3,4a, 4b and Fig. 5 a, 5b, in certain embodiments, one end of the first lever arm 3 is provided with the first hinged pipe 32, the first hinge hole 30 that is arranged in this end is applied in the first hinged pipe 32, the other end of the first lever arm 3 is provided with the first hinged ear seat 31, and the first hinge hole 30 that is arranged in this other end is applied in this first hinged ear seat 31.One end of the second lever arm 4 is provided with the second hinged pipe 42, the second hinge hole 40 that is arranged in this end is applied in the second hinged pipe 42, the other end of the second lever arm 4 is provided with the second hinged ear seat 41, and the second hinge hole 40 that is arranged in this other end is applied in the second hinged ear seat 41.Hinged between the first lever arm 3 and the second lever arm 4, by the first hinged pipe 32 and the second hinged ear seat 41, join and be communicated with the first hinge hole 30 and the hinged ear seat 31 of the second hinge hole 40 or the first joins and is communicated with after the first hinge hole 30 and the second hinge hole 40 with the second hinged pipe 42, for the second bearing pin 7 cross-under, in the first hinge hole 30 and the second hinge hole 40, realize.This first lever arm 3 and the second lever arm 4 are all the platy structure with certain length, and its size, thickness can arrange according to actual needs.
In the present embodiment, the first lever arm 3 is hinged to be provided with one end and the holder 1 of the first hinged pipe 32.When the first lever arm 3 and holder 1 are hinged, the first hinged pipe 32 on the first lever arm 3 is coupled between two key seats 13, and be communicated with the first hinge hole 30 alignings that are positioned in this first hinged pipe 32 with the first pin-and-hole 11 on key seat 13, the first bearing pin 6 is through in first pin-and-hole 11 and the first hinge hole 30 of connection, can realize the hinged of the first lever arm 3 and holder 1, the first lever arm 3 can the first bearing pin 6 be that axle rotates relative to holder 1.
The other end of the first lever arm 3 is by second hinged pipe 42 coordination hinges of the first hinged ear seat 31 and second lever arm 4 one end.Preferably, the first hinged ear seat 31 of the first lever arm 3 is provided with two, in two the first hinged ear seats 31, be all penetrated with the first hinge hole 30, these two the first hinged ear seats 31 are disposed on the other end of the first lever arm 3 relatively with the first hinge hole 30 on it.When hinged, second hinged pipe 42 of second lever arm 4 one end is coupled between two the second hinged seats of the first lever arm 3, and aim at and be communicated with the first hinge hole 30 on the first hinged ear seat 31 with the second hinge hole 40 in the second hinged pipe 42, the second bearing pin 7 is through in first hinge hole 30 and the second hinge hole 40 of connection, can realize the hinged of the first lever arm 3 and the second lever arm 4, can the second bearing pin 7 between the first lever arm 3 and the second lever arm 4 relatively rotate for axle.
As Fig. 6 shows, relative two lip-deep the first articulated jibs 51 and the second articulated jib 52, the three hinge holes 50 that the 3rd lever arm 5 can comprise junction plate 53, be connected to junction plate 53 are separately positioned on the first articulated jib 51 and the second articulated jib 52.The 3rd lever arm 5 is hinged by the first articulated jib 51 and the second lever arm 4, hinged with Connection Block 2 by the second articulated jib 52.In the present embodiment, junction plate 53 is platy structure, the block structure that the first articulated jib 51 is cuboid, and the length of the first articulated jib 51 is less than the distance between two the second hinged ear seats 41 of the second lever arm 4, and the 3rd hinge hole 50 that is arranged in the first articulated jib 51 is applied in the first articulated jib 51.In conjunction with Fig. 3,5a and Fig. 6, with the second lever arm 4 when hinged, the first articulated jib 51 is engaged between two the second hinged ear seats 41, and aim at and be communicated with the 3rd hinge hole 50 on the first articulated jib 51 with the second hinge hole 40 on the second hinged ear seat 41, the 3rd bearing pin 8 is through in second hinge hole 40 and the 3rd hinge hole 50 of connection, can realize the hinged of the second lever arm 4 and the 3rd lever arm 5, can the 3rd bearing pin 8 between the second lever arm 4 and the 3rd lever arm 5 relatively rotate for axle.Size, the thickness of junction plate 53, the first articulated jib 51 and the second articulated jib 52 can arrange according to actual needs.
The first articulated jib 51 can be integrally formed or be separately made rear integrally welded or be fastenedly connected by the securing members such as bolt and junction plate 53 with junction plate 53.When the 3rd lever arm 5 and the second lever arm 4 relatively rotate, the first articulated jib 51 can abut on the surface of the second lever arm 4 and the carryover of restriction the 3rd lever arm 5, therefore, on the second lever arm 4 and the hinged one end of the first articulated jib 51, offer notch 43, as shown in Fig. 3,5a, 5b, when the 3rd lever arm 5 rotates, the first articulated jib 51 can not abut on the surface of the second lever arm 4 by notch 43.Wherein, notch 43 is from the end face middle part of one end of the second lever arm 4, extend and offer to the second lever arm 4 inner sides along the length direction of the second lever arm 4, and one end of this second lever arm 4 is the second lever arm 4 and the hinged one end of the first articulated jib 51.Second hinge hole 40 hinged with the 3rd lever arm 5 is positioned at the relative both sides of notch 43 openings and is arranged on one end of the second lever arm 4.In the present embodiment, two second hinged ear seats 41 settings are positioned at the relative both sides of notch 43 openings and are arranged on one end of the second lever arm 4, and 40 corresponding of the second hinge holes are applied in respectively on this two second hinged ear seat 41.
The second articulated jib 52 can be long strip-board shape structure.Preferably, the second articulated jib 52 and the first articulated jib 51 are positioned at junction plate 53 two ends and are connected on two surfaces of junction plate 53, make the second articulated jib 52 and the first articulated jib 51 not on same straight line.As shown in Figure 6, the outer peripheral edges that this second articulated jib 52 is provided with the 3rd hinged ear seat 54, the three hinged ear seats 54 away from extension on one end of Connection Block 2 are circular arc, and the 3rd hinge hole 50 being positioned on the second articulated jib 52 is applied on the 3rd hinged ear seat 54.For strengthening the intensity of the 3rd lever arm 5, the 3rd lever arm 5 also comprises at least one gusset 55; Gusset 55 is fixed on junction plate 53 with one end, and is connected at least one surface of the second articulated jib 52 along the length direction of the second articulated jib 52.
As shown in Figure 7,8, and in conjunction with Fig. 1-3, Connection Block 2 comprises panel 22 and be vertically connected on the articulated slab 23 on panel 22, panel 22 is for being fixedly mounted on manhole cover 20, articulated slab 23 is for hinged with the 3rd lever arm 5, and 21 above-mentioned of the second pin-and-holes are arranged on articulated slab 23.As shown in the figure, at the present embodiment, articulated slab 23 is provided with two, and interval is connected to panel 22 relatively on the surface of the 3rd lever arm 5, and each articulated slab 23 is equipped with on the straight line that is centered close to a parallel panel 22 of the second pin-and-hole 21, two second pin-and-holes 21.When the 3rd lever arm 5 and Connection Block 2 are hinged, the second articulated jib 52 is coupled between two articulated slabs 23 with the 3rd hinged ear seat 54, and aim at and be communicated with the second pin-and-hole 21 with the 3rd hinge hole 50 on the 3rd hinged ear seat 54, the 4th bearing pin 9 is through in the 3rd hinge hole 50 and the second pin-and-hole 21 of connection, can realize the hinged of the 3rd lever arm 5 and Connection Block 2, the 3rd lever arm 5 can the 4th bearing pin 9 be that axle rotates relative to Connection Block 2.
In conjunction with Fig. 1 and Fig. 9, while opening manhole door 10 at dismounting manhole cover 20, can first the bridge shape door bolt on manhole door 10 be unloaded, on auxiliary screw 200 on manhole cover 20, load onto auxiliary bolt and on auxiliary bolt, load onto service bridge shape door bolt 101, with fixing manhole door 10, unload a side of bridge shape door bolt; It is little compared with bridge shape door bolt that service bridge shape is fastened 101 sizes with a bolt or latch, can abdicate enough spaces so that boring device to be installed; The holder of boring device 1 and Connection Block 2 are fixedly mounted on respectively on the peripheral end face 100 of manhole door 10 and on manhole cover 20, and use another auxiliary bolt 102 through the junction plate 53 of the 3rd lever arm 5 to being connected on manhole cover 20, by coordinating of this auxiliary bolt 102 and junction plate 51 and manhole cover 20, the horizontal level that maintains manhole cover 20 is constant, then unloads another bridge shape door bolt on manhole door 10; After boring device installs, can unload service bridge shape door bolt 101.Further can on manhole cover 20, load onto suspension ring 201, and tether is sub on suspension ring 201, the rope other end can be fixed in other auxiliary equipment, can prevent from when manhole cover 20 from departing from manhole doors 10 dropping in hydroecium.
By manhole cover 20 to the interior thruster of manhole door 10, with by manhole cover 20 to manhole door 10 inner side translations, for the rotation of follow-up manhole cover 20 provides space; By tightening up a rope, make manhole cover 20 rotate, make the major axis of manhole cover 20 point to manhole door 10, the auxiliary bolt 102 coordinating with junction plate 53 and be connected on manhole cover 20 is back-outed; By manhole cover 20 clockwise or be rotated counterclockwise 90 °, make the residing plane of major axis of the minor axis plane parallel manhole door 10 of living in of manhole cover 20; Operate the first lever arm 3, the second lever arm 4 and the 3rd lever arm 5, by manhole cover 20 from manhole door 10 inner sides out.
This boring device also can be mounted to manhole cover 20 on manhole door 10, its operating procedure reversed in order and above-mentioned dismounting manhole cover 20 operating procedures.
Understandably, this nuclear power station manhole door headstock gear is not only applicable to the keying of elliptical manhole door, is applicable to the keying that other has the manhole door of major and minor axis yet, as rhombus, rectangle etc.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model manual and accompanying drawing content to do; 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 (10)
1. a nuclear power station manhole door headstock gear, it is characterized in that, comprise the holder (1) on the peripheral end face (100) for being fixedly mounted on manhole door (10), be used for being fixedly mounted on the Connection Block (2) on manhole cover (20), and be hinged on successively between described holder (1) and Connection Block (2), by relatively rotating each other, manhole cover (20) pulled out or pushed several lever arms of manhole door (10) from manhole door (10) inner side with the state of non-parallel manhole door (10).
2. nuclear power station manhole door headstock gear according to claim 1, it is characterized in that, described several lever arms comprise the first lever arm (3) of being hinged on described holder (1), be hinged on the 3rd lever arm (5) on described Connection Block (2) and be hinged on described the first lever arm (3) and the 3rd lever arm (5) between the second lever arm (4).
3. nuclear power station manhole door headstock gear according to claim 2, it is characterized in that, the opposite end of described the first lever arm (3) is respectively equipped with the first hinge hole (30), the opposite end of described the second lever arm (4) is respectively equipped with the second hinge hole (40), and the opposite end of described the 3rd lever arm (5) is respectively equipped with the 3rd hinge hole (50);
Described holder (1) is provided with the first pin-and-hole (11), by the first bearing pin (6), is located in the first hinge hole (30) on described the first pin-and-hole (11) and described the first lever arm (3) one end described the first lever arm (3) and described holder (1) is hinged;
The other end of described the first lever arm (3) is hinged by the second bearing pin (7) and described the second lever arm (4), and described the second bearing pin (7) is located in first hinge hole (30) of described the first lever arm (3) other end and second hinge hole (40) of described the second lever arm (4) one end;
The other end of described the second lever arm (4) is hinged by the 3rd bearing pin (8) and described the 3rd lever arm (5), and described the 3rd bearing pin (8) is located in second hinge hole (40) of described the second lever arm (4) other end and the 3rd hinge hole (50) of described the 3rd lever arm (5) one end;
The other end of described the 3rd lever arm (5) is hinged by the 4th bearing pin (9) and described Connection Block (2), described Connection Block (2) is provided with the second pin-and-hole (21), and described the 4th bearing pin (9) is located in the 3rd hinge hole (50) and described the second pin-and-hole (21) of described the 3rd lever arm (5) other end.
4. nuclear power station manhole door headstock gear according to claim 3, it is characterized in that, described holder (1) comprises that described the first pin-and-hole (11) is applied on described key seat (13) for being fixedly mounted on the base plate (12) on the peripheral end face of described manhole door (10) and being connected to the key seat (13) on described base plate (12).
5. nuclear power station manhole door headstock gear according to claim 3, it is characterized in that, described Connection Block (2) comprises that described the second pin-and-hole (21) is arranged on described articulated slab (23) for being fixedly mounted on the panel (22) on described manhole cover (20) and being vertically connected on the articulated slab (23) on described panel (22).
6. nuclear power station manhole door headstock gear according to claim 3, it is characterized in that, the opposite end of described the first lever arm (3) is respectively equipped with the first hinged ear seat (31) or the first hinged pipe (32), and described the first hinge hole (30) is arranged on described the first hinged ear seat (31) or in described the first hinged pipe (32) along the central axis of described the first hinged ear seat (31) or the first hinged pipe (32);
The opposite end of described the second lever arm (4) is respectively equipped with the second hinged ear seat (41) or the second hinged pipe (42), and described the second hinge hole (40) is arranged on described the second hinged ear seat (41) or in described the second hinged pipe (42) along the central axis of described the second hinged ear seat (41) or the second hinged pipe (42).
7. nuclear power station manhole door headstock gear according to claim 3, it is characterized in that, described the 3rd lever arm (5) comprises junction plate (53), is connected to relative two lip-deep the first articulated jibs (51) and second articulated jib (52) of described connection (53); Described the 3rd hinge hole (50) is separately positioned on described the first articulated jib (51) and the second articulated jib (52); Described the 3rd lever arm (5) is hinged by described the first articulated jib (51) and described the second lever arm (4), hinged by described the second articulated jib (52) and described Connection Block (2).
8. nuclear power station manhole door headstock gear according to claim 7, it is characterized in that, described the second lever arm (4) and described the first articulated jib (51) offer notch (43) on hinged one end, and from the end face middle part of described one end of described the second lever arm (4), the length direction along described the second lever arm (4) extends and offers to described the second lever arm (4) inner side described notch (43); Second hinge hole (40) hinged with described the 3rd lever arm (5) is positioned at the relative both sides of described notch (43) opening and is arranged on described one end of described the second lever arm (4).
9. nuclear power station manhole door headstock gear according to claim 7, it is characterized in that, described the second articulated jib (52) is away from extending and be provided with the 3rd hinged ear seat (54) on one end of described Connection Block (2), the outer peripheral edges of described the 3rd hinged ear seat (54) are circular arc, are positioned at described the 3rd hinge hole (50) on described the second articulated jib (52) and are applied on described the 3rd hinged ear seat (54) along the central axis of described the 3rd hinged ear seat (54).
10. nuclear power station manhole door headstock gear according to claim 7, is characterized in that, described the 3rd lever arm (5) also comprises at least one gusset (55); It is upper that described gusset (55) is fixed on described junction plate (53) with one end, and be connected at least one surface of described the second articulated jib (52) along the length direction of described the second articulated jib (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320764247.1U CN203570049U (en) | 2013-11-27 | 2013-11-27 | Manhole door opening and closing device for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320764247.1U CN203570049U (en) | 2013-11-27 | 2013-11-27 | Manhole door opening and closing device for nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570049U true CN203570049U (en) | 2014-04-30 |
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ID=50537784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320764247.1U Expired - Lifetime CN203570049U (en) | 2013-11-27 | 2013-11-27 | Manhole door opening and closing device for nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915446A (en) * | 2018-09-10 | 2018-11-30 | 中国工程物理研究院机械制造工艺研究所 | A kind of hermatic door hinge |
-
2013
- 2013-11-27 CN CN201320764247.1U patent/CN203570049U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915446A (en) * | 2018-09-10 | 2018-11-30 | 中国工程物理研究院机械制造工艺研究所 | A kind of hermatic door hinge |
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