CN103883751B - Three expansion sluice valves - Google Patents
Three expansion sluice valves Download PDFInfo
- Publication number
- CN103883751B CN103883751B CN201410139611.4A CN201410139611A CN103883751B CN 103883751 B CN103883751 B CN 103883751B CN 201410139611 A CN201410139611 A CN 201410139611A CN 103883751 B CN103883751 B CN 103883751B
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- China
- Prior art keywords
- flashboard
- positioning part
- attachment post
- extension spring
- longitudinally
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
- F16K3/14—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces with special arrangements for separating the sealing faces or for pressing them together
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The present invention relates to a kind of three expansion sluice valves, comprise valve body, spool and valve rod, described valve body has left and right side valve body sealing surface, valve rod band movable valve plug longitudinally-moving, described spool comprises middle flashboard, left flashboard and right flashboard, described middle flashboard is between left flashboard and right flashboard, middle flashboard, left flashboard and right flashboard can overall longitudinally-movings, middle flashboard can relatively left flashboard and right flashboard longitudinally-moving, middle flashboard is provided with the inclined-plane left flashboard and right flashboard laterally strutted to both sides, left and right flashboard is respectively equipped with the left and right side ram seal face abutting with left and right side valve body sealing surface and be sealed and matched, sealing surface and the left and right side valve body sealing surface with spool can not rub, can not wear and tear, seal tight feature.
Description
Technical field
The present invention relates to a kind of gate valve, particularly relate to a kind of three expansion sluice valves.
Background technique
Existing gate valve, comprise valve body, spool and valve rod, described valve body has left and right side valve body sealing surface, valve rod band movable valve plug longitudinally-moving, that is to say valve rod band movable valve plug straight line motion, complete gate valve to open or close, moving direction and the flow direction of spool are perpendicular, fluid can be water, steam, oil, and the liquid of other flowings, the deficiency of this gate valve is, valve rod band movable valve plug longitudinally-moving, during throttle down, namely when spool moves toward flow direction, the sealing surface of spool forms very large friction by with left and right side valve body sealing surface, and when Open valve, namely spool is toward when moving away from flow direction, the sealing surface of spool also forms very large friction by with left and right side valve body sealing surface, being equivalent to is the friction by the two between the sealing surface of spool and left and right side valve body sealing surface, extruding, abut sealing, each Open valve or throttle down all cannot avoid the phenomenon of the two friction, so in use for some time, sealing surface and the left and right side valve body sealing surface of spool will wear and tear, gap can be formed between the sealing surface of spool and left and right side valve body sealing surface, thus the sealing of gate valve is tight not, fluid is passed through from gap, fluid cannot cut off by gate valve completely, gate valve is caused to use, thus allow user need the gate valve more renewed, bring inconvenience to user, user cost improves greatly.
Summary of the invention
Technical problem to be solved by this invention is: provide that a kind of sealing surface of spool and left and right side valve body sealing surface rub less, the sealing surface of spool and left and right side valve seal surface wear little, seal three tight expansion sluice valves.
For solving the problems of the technologies described above the present invention by the following technical solutions: three expansion sluice valves, comprise valve body, spool and valve rod, described valve body has left and right side valve body sealing surface, valve rod band movable valve plug longitudinally-moving, described spool comprises middle flashboard, left flashboard and right flashboard, described middle flashboard is between left flashboard and right flashboard, middle flashboard, left flashboard and right flashboard can overall longitudinally-movings, middle flashboard can relatively left flashboard and right flashboard longitudinally-moving, middle flashboard is provided with the inclined-plane left flashboard and right flashboard laterally strutted to both sides, left and right flashboard is respectively equipped with the left and right side ram seal face abutting with left and right side valve body sealing surface and be sealed and matched.
The beneficial effect of three expansion sluice valves provided by the invention is: because described spool comprises middle flashboard, left flashboard and right flashboard, described middle flashboard is between left flashboard and right flashboard, that is compared with existing gate valve, main difference part is, spool of the present invention is made up of three shoe brake plates, be respectively middle flashboard, left flashboard and right flashboard, middle flashboard, left flashboard and right flashboard can overall longitudinally-movings, that is to say middle flashboard, left flashboard and right flashboard can move toward flow direction, or toward moving away from flow direction, middle flashboard can relatively left flashboard and right flashboard longitudinally-moving, that is to say that flashboard can vertically move relatively with between left flashboard and right flashboard, middle flashboard is provided with the inclined-plane left flashboard and right flashboard laterally strutted to both sides, that is to say that middle flashboard is wedge shape, by sphenoid surface, left flashboard and right flashboard are laterally strutted to both sides, left and right flashboard is respectively equipped with the left and right side ram seal face abutting with left and right side valve body sealing surface and be sealed and matched, that is to say that sealing surface is separately positioned on left and right flashboard, to be abutted with left and right side valve body sealing surface by the sealing surface of left and right flashboard and be sealed and matched, thus gate valve is closed, flashboard during such structure makes valve rod drive, the entirety of left flashboard and right flashboard is toward in the process of flow direction movement, sealing surface and the left and right side valve body sealing surface of left and right flashboard are in phase-separated state all the time, greatly reduce the longitudinal direction friction between spool and valve body sealing surface, solve when closing gate valve, the sealing surface of left and right flashboard and the large problem of left and right side valve body sealing surface wear extent, gate valve closedown step is as follows, flashboard during valve rod drives, the overall longitudinally-moving of left flashboard and right flashboard, namely flashboard in driving, the entirety of left flashboard and right flashboard moves toward flow direction, after left flashboard and right flashboard move into place, left flashboard and right flashboard stop vertically moving, and middle flashboard continues to indulge toward flow direction and moves, namely in, flashboard moves toward flow direction relative to left flashboard and right flashboard, left flashboard and right flashboard are laterally strutted to both sides by inclined-plane by middle flashboard, right side valve body sealing surface of turning left moves, the sealing surface of left and right flashboard is abutted with left and right side valve body sealing surface be sealed and matched, thus gate valve is closed, fluid is cut off, therefore in the closing process of gate valve, reduce the sealing surface of left and right flashboard and the friction of left and right side valve body sealing surface, make the wear extent between the sealing surface of left and right flashboard and left and right side valve body sealing surface less, friction position has been transferred to middle flashboard and between left flashboard and right flashboard, thus can not have an impact to the sealing of valve body, gate valve unlatching step is as follows, flashboard longitudinally-moving during valve rod first drives, now left and right flashboard stops in a longitudinal direction, namely in only driving, flashboard is away from flow direction, namely middle flashboard relative to left and right flashboard toward moving away from flow direction, now left and right flashboard only does horizontal activity, after left and right flashboard sealing surface leaves left and right side valve body sealing surface, middle flashboard, the entirety of left flashboard and right flashboard is toward moving away from flow direction, thus unlatching gate valve, therefore in the process of opening, reduce the sealing surface of left and right flashboard and the friction of left and right side valve body sealing surface equally, make the wear extent of the sealing surface of left and right flashboard and left and right side valve body sealing surface less, friction position has been transferred to middle flashboard and between left flashboard and right flashboard, thus can not have an impact to the sealing of valve body, finally make gate valve durable in use, the gate valve that user need not more renew, user cost reduces greatly.
Below in conjunction with drawings and Examples, three expansion sluice valves provided by the invention are further described in detail.
Accompanying drawing explanation
Fig. 1 is one of structural representation of three expansion sluice valve embodiments provided by the invention.
Fig. 2 is the structural representation two of three expansion sluice valve embodiments provided by the invention.
Fig. 3 is one of structure for amplifying schematic diagram of spool in Fig. 1.
Fig. 4 is the structure for amplifying schematic diagram two of spool in Fig. 1.
Fig. 5 is the structure for amplifying schematic diagram three of spool in Fig. 1.
Fig. 6 is the structure for amplifying schematic diagram four of spool in Fig. 1.
Fig. 7 is the structure for amplifying schematic diagram five of spool in Fig. 1.
Fig. 8 is the structure for amplifying schematic diagram six of spool in Fig. 1.
Fig. 9 is the structure for amplifying schematic diagram seven of spool in Fig. 1.
Figure 10 is the structure for amplifying schematic diagram of spool in Fig. 2.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, the embodiment of three expansion sluice valves provided by the invention, comprises valve body 1, spool 2 and valve rod 3, described valve body 1 has left and right side valve body sealing surface 11, 12, valve rod 3 is with movable valve plug 2 longitudinally-moving, and described spool 2 comprises middle flashboard 21, left flashboard 22 and right flashboard 23, described middle flashboard 21 between left flashboard 22 and right flashboard 23, middle flashboard 21, left flashboard 22 and right flashboard 23 can overall longitudinally-movings, and middle flashboard 21 can relatively left flashboard 22 and right flashboard 23 longitudinally-moving, and middle flashboard 21 is provided with the inclined-plane 21a left flashboard 22 and right flashboard 23 laterally strutted to both sides, left and right flashboard 22, 23 are respectively equipped with and left and right side valve body sealing surface 11, 12 abut the left and right side ram seal face 22a be sealed and matched, 23a, wherein gate valve also comprises valve gap h, nut i, runner j, described valve gap h is fixedly mounted on valve body 1, described nut i is fixedly mounted on valve gap h, valve rod 3 is through nut i, and valve rod 3 is matched by screw thread with nut i, and described runner j is arranged on valve rod 3, runner j rotating band ovable valve stem 3 longitudinally-moving, valve rod 3 is with movable valve plug 2 longitudinally-moving, namely perpendicular to the rectilinear movement of flow direction, that is by valve rod 3, rotary motion is converted to straight line motion by the cooperation of nut i and runner j.
As Fig. 1, Fig. 2, Fig. 9, shown in Figure 10, described spool 2 be provided with make left flashboard 22 and right flashboard 23 mutually draw close effect all the time draw close parts 24, that is left flashboard 22 is pressed in middle flashboard 21 with right flashboard 23 by drawing close parts 24, make left flashboard 22, middle flashboard 21 and right flashboard 23 three link together firmly, guarantee that three can not be separated, when opening gate valve, middle flashboard 21 is toward moving away from flow direction, drawing close parts 24 makes left flashboard 22 be pressed in middle flashboard 21 with right flashboard 23 transverse shifting, make the sealing surface 22a of left flashboard 22 and right flashboard 23, 23a and left and right side valve body sealing surface 11, 12 are separated, be reduced in the sealing surface 22a of left flashboard 22 and right flashboard 23 in opening process, 23a and left and right side valve body sealing surface 11, the friction of 12, wear extent is reduced.
As Fig. 1, Fig. 2, Fig. 9, shown in Figure 10, described parts 24 of drawing close are for extension spring 24a, the both sides of left flashboard 22 and right flashboard 23 are equipped with extension spring 24a, wherein extension spring 24a is also draught spring, being called for short extension spring is the helical spring bearing axial tension, extension spring 24a generally uses the manufacture of circular section material, when not bearing load, between the circle of extension spring 24a and circle be all generally and tight very close to each other, left flashboard 22 is connected with left flashboard 22 with one end of the extension spring 24a of right flashboard 23 side, left flashboard 22 is connected with right flashboard 23 with the other end of the extension spring 24a of right flashboard 23 side, left flashboard 22 is connected with left flashboard 22 with one end of the extension spring 24a of right flashboard 23 opposite side, left flashboard 22 is connected with right flashboard 23 with the other end of the extension spring 24a of right flashboard 23 opposite side, that is extension spring 24a is arranged on left flashboard 22 and right flashboard 23 sidepiece, and the both sides of left flashboard 22 and right flashboard 23 are equipped with extension spring 24a, make left flashboard 22 and right flashboard 23 better can be pressed in middle flashboard 21, the impacting force of left flashboard 22 and right flashboard 23 is more balanced, when closing gate valve, middle flashboard 21 moves relative to left flashboard 22 and right flashboard 23, by the inclined-plane 21a of middle flashboard 21, left flashboard 22 and right flashboard 23 are laterally strutted to both sides, make the sealing surface 22a of left flashboard 22 and right flashboard 23, 23a and left and right side valve body sealing surface 11, 12 abut sealing, because left flashboard 22 and right flashboard 23 are laterally strutted by the inclined-plane of middle flashboard 21, therefore extension spring 24a is stretched, the pulling force of extension spring 24a will act on left flashboard 22 and right flashboard 23, thus in the process opening gate valve, central flashboard 21 moves away from flow direction with right flashboard 23 is past relative to left flashboard 22, the pulling force of extension spring 24a makes left flashboard 22 be pressed in middle flashboard 21 with right flashboard 23 transverse shifting.
As Fig. 2, shown in Figure 10, wherein the mounting type of extension spring 24a can also do following accommodation, described parts 24 of drawing close are for extension spring 24a, the both sides of left flashboard 22 and right flashboard 23 are equipped with extension spring 24a, the both sides of left flashboard 22 and right flashboard 23 are equipped with positioning part 25, middle positioning part 26 and lower positioning part 27, upper positioning part 25, lower positioning part 27 is arranged on left flashboard 22, middle positioning part 26 is arranged on right flashboard 23, or upper positioning part 25, lower positioning part 27 is arranged on right flashboard 23, middle positioning part 26 is arranged on left flashboard 22, described extension spring 24a comprises upper end 24a1, middle-end 24a2 and lower end 24a3, the upper end 24a1 of spring 24a is arranged on positioning part 25, the middle-end 24a2 of spring 24a is arranged on middle positioning part 26, the lower end 24a3 of spring 24a is arranged on lower positioning part 27, fixing extension spring 24a by three locating points makes the tightening force of extension spring 24a larger, be applicable to larger gate valve.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Fig. 7, described spool 2 comprise two ends respectively with left and right flashboard 22, 23 attachment posts be associated 4, that is to say that one end of attachment post 4 is flexibly connected with left flashboard 22, the other end of attachment post 4 is flexibly connected with right flashboard 23, be arranged on middle flashboard 21 and the abutting part 5 coordinated can be abutted with attachment post 4, that is to say that flashboard 21 is provided with abutting part 5, abutting part 5 can abut with attachment post 4 and coordinate, middle flashboard 21 drives attachment post 4 longitudinally-moving by abutting part 5, attachment post 4 drives left and right flashboard 22, 23 longitudinally-movings, having between attachment post 4 and middle flashboard 21 can the first space 6 of longitudinally-moving relatively, that is to say and can relatively vertically move between attachment post 4 with middle flashboard 21, left and right flashboard 22, 23 have respectively can relative laterally movable second space 7 with attachment post 4, attachment post 4 and left and right flashboard 22, can transverse shifting relatively between 23, left and right flashboard 22 is driven by attachment post 4, 23 longitudinally-movings, middle flashboard 21 and left and right flashboard 22 can be guaranteed, the overall longitudinally-moving of 23 is more stable, guarantee that gate valve is opened or closed, described middle flashboard 21 is provided with middle flashboard through hole a, described attachment post 4 is through middle flashboard through hole a, the limit wall a1 of described middle flashboard through hole a abuts the abutting part 5 coordinated with attachment post 4, flashboard is in unlatching or closing process, mainly middle flashboard through hole a top wall a1 or below wall a1 abut with attachment post 4 and coordinate, attachment post 4 is driven to move, the phase of left flashboard 22 and right flashboard 23 is equipped with blind hole b to the inside, the two ends of attachment post 4 are inserted in the blind hole b of left flashboard 22 and right flashboard 23 respectively, described first space 6 is can the longitudinally-moving space 61 of relative longitudinally-moving between attachment post 4 with middle flashboard through hole a, described second space 7 be attachment post 4 two ends respectively with can the relative laterally movable movable space 71 of transverse direction between left flashboard 22 and the blind hole b of right flashboard 23, there is structure simple, manufacture cost effect.
As Fig. 1, Fig. 2, shown in Fig. 6, wherein the mounting type of attachment post 4 can also do following accommodation, described spool 2 comprises the attachment post 4 being fixedly installed on middle flashboard 21, that is to say that attachment post 4 is fixedly mounted on middle flashboard 21, can not relative movement between attachment post 4 and middle flashboard 21, be separately positioned on left and right flashboard 22, 23 also can abut the abutting part 5 coordinated with attachment post 4, that is to say that abutting part 5 is separately positioned on left and right flashboard 22, 23, left and right flashboard 22, 23 have respectively can the first space 6 of relative longitudinally-moving with attachment post 4, that is to say attachment post 4 and left and right flashboard 22, 23 can vertically move relatively, left and right flashboard 22, 23 have respectively can relative laterally movable second space 7 with attachment post 4, that is to say attachment post 4 and left and right flashboard 22, 23 can transverse shifting relatively, this structure also can make middle flashboard 21 and left and right flashboard 22, the overall longitudinally-moving of 23 is more stable, guarantee that gate valve is opened or closed, described left flashboard 22 and right flashboard 23 are equipped with chute c, the limit wall c1 of described chute c abuts the abutting part 5 coordinated with attachment post 4, described attachment post 4 is arranged on the both sides of middle flashboard 21, the attachment post 4 of described middle flashboard 21 both sides inserts among the chute c of left flashboard 22 and right flashboard 23 respectively, described first space 6 is can the longitudinally-moving space 61 of relative longitudinally-moving between attachment post 4 with chute c, described second space 7 is can the relative laterally movable movable space 71 of transverse direction between attachment post 4 with chute c, that is to say when gate valve is opened or close, middle flashboard 21 drives attachment post 4 to vertically move, attachment post 4 abuts with the limit wall c1 of chute c, attachment post 4 drives left flashboard 22 and right flashboard 23 to vertically move by the limit wall c1 of chute c, it is simple that this structure has structure equally, manufacture cost effect.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 8, shown in Figure 10, the middle flashboard 21 of described spool 2 is provided with resetting means, described spool 2 comprises reset frame d, lower reset frame e and Returnning spring f, middle flashboard 21 is provided with reset through hole g, described upper reset frame d, lower reset frame e and Returnning spring f is all positioned among reset through hole g, upper reset frame d is fixedly connected with the top of reset through hole g, the two ends of lower reset frame e are erected on left flashboard 22 and right flashboard 23 respectively, one end of Returnning spring f abuts with upper reset frame d, the other end of Returnning spring f abuts with lower reset frame e, that is to say that Returnning spring f is arranged between reset frame d and lower reset frame e, wherein Returnning spring f is stage clip, when closing gate valve, upper reset frame d follows middle flashboard 21 and moves stage clip pressing, make stage clip contraction deformation, store energy of deformation, therefore when opening gate valve, the energy of deformation that stage clip stores can be delivered to middle flashboard 21, gate valve is opened more laborsaving, after Returnning spring f also makes gate valve open, middle flashboard 21 and reset to initial position between left flashboard 22 and right flashboard 23, thus when each closing gate valve, middle flashboard 21 can move relative to left flashboard 22 and right flashboard 23.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 7, Fig. 9, Figure 10, middle flashboard 21 resetting means of described spool 2 can also do following accommodation, described spool 2 comprises Returnning spring f and fixing column k, middle flashboard 21 is provided with reset through hole g, Returnning spring f is positioned among reset through hole g, the two ends of Returnning spring f are separately positioned between left flashboard 22 and right flashboard 23 by fixing column k, it is more laborsaving that such structure makes gate valve open equally, gate valve makes middle flashboard 21 and resets to initial position between left flashboard 22 and right flashboard 23 after opening.
As shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, described middle flashboard through hole a and attachment post 4 all arrange two, can prevent left flashboard 22 and right flashboard 23 from rotating, the stability of gate valve is improved greatly, certain single middle flashboard through hole a and single attachment post 4 also can prevent left flashboard 22 and right flashboard 23 from rotating, middle flashboard through hole a, attachment post 4 and blind hole b are all arranged to square, if abutting part 5 is chute c be also set to square chute c.
As Fig. 1, shown in Fig. 2, the inclined-plane 21a of described middle flashboard to comprise on the left of middle flashboard inclined-plane 21a2 on the right side of inclined-plane 21a1 and middle flashboard, left flashboard 22 comprises flashboard inclined-plane, the left side 22b matched with inclined-plane 21a1 on the left of middle flashboard, right flashboard 23 comprises flashboard inclined-plane, the right side 23b matched with inclined-plane 21a2 on the right side of middle flashboard, left valve barrel sealing surface 11, left ram seal face 22a, left side flashboard inclined-plane 22b and middle flashboard on the left of inclined-plane 21a1 all parallel, right valve barrel sealing surface 12, right ram seal face 23a, right side flashboard inclined-plane 23b and middle flashboard on the right side of inclined-plane 21a2 all parallel, left ram seal face 22a and right ram seal face 23b is obliquely installed mutually, such structure makes Gate-valve sealing better effects if.
As Fig. 1, shown in Fig. 2, wherein spool 2 and left and right side valve body sealing surface 11, the fit system of 12 can also do following accommodation, the inclined-plane 21a of described middle flashboard to comprise on the left of middle flashboard inclined-plane 21a2 on the right side of inclined-plane 21a1 and middle flashboard, left flashboard 22 comprises flashboard inclined-plane, the left side 22b matched with inclined-plane 21a1 on the left of middle flashboard, right flashboard 23 comprises flashboard inclined-plane, the right side 23b matched with inclined-plane 21a2 on the right side of middle flashboard, left valve barrel sealing surface 11, left ram seal face 22a, right valve barrel sealing surface 12 and right ram seal face 23a all parallel, left side flashboard inclined-plane 22b parallels with inclined-plane 21a1 on the left of middle flashboard, right side flashboard inclined-plane 23b parallels with inclined-plane 21a2 on the right side of middle flashboard, on the left of left ram seal face 22a and middle flashboard, on the right side of inclined-plane 21a1 and middle flashboard, inclined-plane 21a2 is obliquely installed mutually, such structure also can make gate valve have the feature of good sealing effect.
Claims (10)
1. three expansion sluice valves, comprise valve body (1), spool (2) and valve rod (3), described valve body (1) has left and right side valve body sealing surface (11), (12), valve rod (3) band movable valve plug (2) longitudinally-moving, it is characterized in that: described spool (2) comprises middle flashboard (21), left flashboard (22) and right flashboard (23), described middle flashboard (21) is positioned between left flashboard (22) and right flashboard (23), middle flashboard (21), left flashboard (22) and right flashboard (23) can overall longitudinally-movings, middle flashboard (21) can relatively left flashboard (22) and right flashboard (23) longitudinally-moving, middle flashboard (21) is provided with the inclined-plane (21a) left flashboard (22) and right flashboard (23) laterally strutted to both sides, left and right flashboard (22), (23) be respectively equipped with and left and right side valve body sealing surface (11), (12) the left and right side ram seal face (22a) be sealed and matched is abutted, (23a),
Described spool (2) comprise two ends respectively with left and right flashboard (22), (23) attachment post (4) be associated, be arranged on middle flashboard (21) and the abutting part (5) coordinated can be abutted with attachment post (4), having between attachment post (4) with middle flashboard (21) can first space (6) of relative longitudinally-moving, left and right flashboard (22), (23) having respectively can relative laterally movable second space (7) with attachment post (4), described middle flashboard (21) is provided with middle flashboard through hole (a), described attachment post (4) is through middle flashboard through hole (a), the limit wall (a1) of described middle flashboard through hole (a) is abut the abutting part (5) coordinated with attachment post (4), the phase of left flashboard (22) and right flashboard (23) is equipped with blind hole (b) to the inside, the two ends of attachment post (4) are inserted in the blind hole (b) of left flashboard (22) and right flashboard (23) respectively, described first space (6) for attachment post (4) with can the longitudinally-moving space (61) of relative longitudinally-moving between middle flashboard through hole (a), the two ends that described second space (7) is attachment post (4) respectively with can the relative laterally movable movable space of transverse direction (71) between left flashboard (22) and the blind hole (b) of right flashboard (23).
2. three expansion sluice valves according to claim 1, is characterized in that: described spool (2) be provided with make left flashboard (22) and right flashboard (23) mutually draw close effect all the time draw close parts (24).
3. three expansion sluice valves according to claim 2, it is characterized in that: described in draw close parts (24) for extension spring (24a), the both sides of left flashboard (22) and right flashboard (23) are equipped with extension spring (24a), left flashboard (22) is connected with left flashboard (22) with one end of the extension spring (24a) of right flashboard (23) side, left flashboard (22) is connected with right flashboard (23) with the other end of the extension spring (24a) of right flashboard (23) side, left flashboard (22) is connected with left flashboard (22) with one end of the extension spring (24a) of right flashboard (23) opposite side, left flashboard (22) is connected with right flashboard (23) with the other end of the extension spring (24a) of right flashboard (23) opposite side.
4. three expansion sluice valves according to claim 2, it is characterized in that: described in draw close parts (24) for extension spring (24a), the both sides of left flashboard (22) and right flashboard (23) are equipped with extension spring (24a), the both sides of left flashboard (22) and right flashboard (23) are equipped with positioning part (25), middle positioning part (26) and lower positioning part (27), upper positioning part (25), lower positioning part (27) is arranged on left flashboard (22), middle positioning part (26) is arranged on right flashboard (23), or upper positioning part (25), lower positioning part (27) is arranged on right flashboard (23), middle positioning part (26) is arranged on left flashboard (22), described extension spring (24a) comprises upper end (24a1), middle-end (24a2) and lower end (24a3), the upper end (24a1) of spring (24a) is arranged on positioning part (25), the middle-end (24a2) of spring (24a) is arranged on middle positioning part (26), the lower end (24a3) of spring (24a) is arranged on lower positioning part (27).
5. three expansion sluice valves according to claim 1 or 2 or 3 or 4, it is characterized in that: described spool (2) comprises reset frame (d), lower reset frame (e) and Returnning spring (f), middle flashboard (21) is provided with reset through hole (g), described upper reset frame (d), lower reset frame (e) and Returnning spring (f) are all positioned among reset through hole (g), upper reset frame (d) is fixedly connected with the top of reset through hole (g), the two ends of lower reset frame (e) are erected on left flashboard (22) and right flashboard (23) respectively, one end of Returnning spring (f) abuts with upper reset frame (d), the other end of Returnning spring (f) abuts with lower reset frame (e).
6. three expansion sluice valves according to claim 5, is characterized in that: described middle flashboard through hole (a) and attachment post (4) are equipped with two.
7. three expansion sluice valves, it is characterized in that: comprise valve body (1), spool (2) and valve rod (3), described valve body (1) has left and right side valve body sealing surface (11), (12), valve rod (3) band movable valve plug (2) longitudinally-moving, it is characterized in that: described spool (2) comprises middle flashboard (21), left flashboard (22) and right flashboard (23), described middle flashboard (21) is positioned between left flashboard (22) and right flashboard (23), middle flashboard (21), left flashboard (22) and right flashboard (23) can overall longitudinally-movings, middle flashboard (21) can relatively left flashboard (22) and right flashboard (23) longitudinally-moving, middle flashboard (21) is provided with the inclined-plane (21a) left flashboard (22) and right flashboard (23) laterally strutted to both sides, left and right flashboard (22), (23) be respectively equipped with and left and right side valve body sealing surface (11), (12) the left and right side ram seal face (22a) be sealed and matched is abutted, (23a), described spool (2) comprises the attachment post (4) being fixedly installed on middle flashboard (21), be separately positioned on left and right flashboard (22), and the abutting part (5) coordinated can be abutted with attachment post (4) (23), left and right flashboard (22), (23) having respectively can first space (6) of relative longitudinally-moving with attachment post (4), left and right flashboard (22), (23) having respectively can relative laterally movable second space (7) with attachment post (4), described left flashboard (22) and right flashboard (23) are equipped with chute (c), the limit wall (c1) of described chute (c) is abut the abutting part (5) coordinated with attachment post (4), described attachment post (4) is arranged on the both sides of middle flashboard (21), the attachment post (4) of described middle flashboard (21) both sides inserts among the chute (c) of left flashboard (22) and right flashboard (23) respectively, described first space (6) for attachment post (4) with can the longitudinally-moving space (61) of relative longitudinally-moving between chute (c), described second space (7) for attachment post (4) with can the relative laterally movable movable space of transverse direction (71) between chute (c).
8. three expansion sluice valves according to claim 7, is characterized in that: described spool (2) be provided with make left flashboard (22) and right flashboard (23) mutually draw close effect all the time draw close parts (24).
9. three expansion sluice valves according to claim 8, it is characterized in that: described in draw close parts (24) for extension spring (24a), the both sides of left flashboard (22) and right flashboard (23) are equipped with extension spring (24a), left flashboard (22) is connected with left flashboard (22) with one end of the extension spring (24a) of right flashboard (23) side, left flashboard (22) is connected with right flashboard (23) with the other end of the extension spring (24a) of right flashboard (23) side, left flashboard (22) is connected with left flashboard (22) with one end of the extension spring (24a) of right flashboard (23) opposite side, left flashboard (22) is connected with right flashboard (23) with the other end of the extension spring (24a) of right flashboard (23) opposite side.
10. three expansion sluice valves according to claim 8, it is characterized in that: described in draw close parts (24) for extension spring (24a), the both sides of left flashboard (22) and right flashboard (23) are equipped with extension spring (24a), the both sides of left flashboard (22) and right flashboard (23) are equipped with positioning part (25), middle positioning part (26) and lower positioning part (27), upper positioning part (25), lower positioning part (27) is arranged on left flashboard (22), middle positioning part (26) is arranged on right flashboard (23), or upper positioning part (25), lower positioning part (27) is arranged on right flashboard (23), middle positioning part (26) is arranged on left flashboard (22), described extension spring (24a) comprises upper end (24a1), middle-end (24a2) and lower end (24a3), the upper end (24a1) of spring (24a) is arranged on positioning part (25), the middle-end (24a2) of spring (24a) is arranged on middle positioning part (26), the lower end (24a3) of spring (24a) is arranged on lower positioning part (27).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139611.4A CN103883751B (en) | 2014-04-09 | 2014-04-09 | Three expansion sluice valves |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410139611.4A CN103883751B (en) | 2014-04-09 | 2014-04-09 | Three expansion sluice valves |
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| CN103883751A CN103883751A (en) | 2014-06-25 |
| CN103883751B true CN103883751B (en) | 2016-03-23 |
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| CN201410139611.4A Expired - Fee Related CN103883751B (en) | 2014-04-09 | 2014-04-09 | Three expansion sluice valves |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107816559B (en) * | 2017-11-23 | 2023-07-21 | 天津卡尔斯阀门股份有限公司 | Improved combined valve body |
| CN111120672B (en) * | 2020-01-21 | 2022-08-23 | 石家庄耐斯特机械阀业有限公司 | Special valve for under-pressure hole opening |
| CN111230809B (en) * | 2020-03-20 | 2023-07-07 | 成都乘风阀门有限责任公司 | Valve seat mounting tool and method for flat gate valve |
| CN114719038B (en) * | 2022-04-21 | 2024-02-09 | 金博阀门集团股份有限公司 | Gate valve with anti-blocking function |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85204475U (en) * | 1985-10-23 | 1987-06-03 | 王加新 | Expansive sealing assembly for valves |
| CN201011385Y (en) * | 2007-01-16 | 2008-01-23 | 苏林波 | Novel flat plate gate valve |
| CN201836422U (en) * | 2010-06-17 | 2011-05-18 | 正光阀门集团有限公司 | Prop open type sealed flat gate valve |
| CN202561090U (en) * | 2012-05-22 | 2012-11-28 | 百强阀门集团有限公司 | High-temperature anti-abrasion shearing flat gate valve |
| CN103375599A (en) * | 2012-04-21 | 2013-10-30 | 潘远志 | Metal seal flat valve |
| CN203286028U (en) * | 2013-06-05 | 2013-11-13 | 环球阀门集团有限公司 | Double-disc parallel seat vacuum isolating valve |
| CN103470797A (en) * | 2013-09-24 | 2013-12-25 | 宣达实业集团有限公司 | Friction-free flat gate valve resistant to high temperature and high pressure |
| CN203757032U (en) * | 2014-04-09 | 2014-08-06 | 金首广 | Three-way expansion gate valve |
-
2014
- 2014-04-09 CN CN201410139611.4A patent/CN103883751B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85204475U (en) * | 1985-10-23 | 1987-06-03 | 王加新 | Expansive sealing assembly for valves |
| CN201011385Y (en) * | 2007-01-16 | 2008-01-23 | 苏林波 | Novel flat plate gate valve |
| CN201836422U (en) * | 2010-06-17 | 2011-05-18 | 正光阀门集团有限公司 | Prop open type sealed flat gate valve |
| CN103375599A (en) * | 2012-04-21 | 2013-10-30 | 潘远志 | Metal seal flat valve |
| CN202561090U (en) * | 2012-05-22 | 2012-11-28 | 百强阀门集团有限公司 | High-temperature anti-abrasion shearing flat gate valve |
| CN203286028U (en) * | 2013-06-05 | 2013-11-13 | 环球阀门集团有限公司 | Double-disc parallel seat vacuum isolating valve |
| CN103470797A (en) * | 2013-09-24 | 2013-12-25 | 宣达实业集团有限公司 | Friction-free flat gate valve resistant to high temperature and high pressure |
| CN203757032U (en) * | 2014-04-09 | 2014-08-06 | 金首广 | Three-way expansion gate valve |
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| CN103883751A (en) | 2014-06-25 |
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