Gate valve
Technical field
The utility model relates to a kind of control valve, relates in particular to a kind of gate valve.
Background technique
See also shown in Figure 1; Structural representation for existing technology common gate valve commonly used; This gate valve comprises in the horizontal direction and to connect successively and an inner charging portion 1 that communicates ', one plug in lock portion 2 ' and discharging portion 3 '; Said plug in lock portion 2 ' a comprise pedestal a 21 ' and guillotine mechanism 23 ', said pedestal 21 ' for the top has the hollow structure of opening, said pedestal 21 ' inner bottom be provided with a groove 211 '.Said guillotine mechanism 23 ' from said pedestal 21 ' the top insert said plug in lock portion 2 ' inside, and when gate valve is closed, the said groove 211 of the flashboard 233 of said guillotine mechanism 23 ' bottom ' stretch into ' in, this moment, gate valve can be realized sealing.Yet; When the gate valve with said structure is applied on the device of transport high temperature thickness class medium; Because high temperature thickness class medium is very easy to the residual and chance condensation knot in said groove 211 ' inside; Make said flashboard 233 ' the bottom can't stretch into said groove 211 ' in, so the situation that the valve of gate valve can't reliable sealing occurs through regular meeting.
Summary of the invention
The main purpose of the utility model is when being applied on the device of transport high temperature thickness class medium for the gate valve that solves existing technology is existing, very easily takes place to tie the technical problem that causes gate valve to seal because the high temperature viscous medium is met condensation.
In order to solve the problems of the technologies described above; The utility model provides a kind of gate valve; Comprise that a connection and an inner charging portion that communicates, are plugged in a lock portion and a discharging portion successively in the horizontal direction; Said plug in lock portion comprises a pedestal and a guillotine mechanism, said pedestal be hollow structure and be connected said charging portion and said discharging portion between, said guillotine mechanism is inserted the inside of said pedestal from the top; The groove of usefulness is inserted in the bottom that the inner bottom of said pedestal is provided with a said guillotine mechanism when supplying gate valve to close; The inwall bottom of said discharging portion maintains an equal level with the bottom of said groove mutually, and the cell wall that said groove links to each other with said discharging portion is provided with a breach, and said breach level connects the bottom of said groove and the inwall bottom of said discharging portion.
Described gate valve, wherein, said charging portion is a feed inlet end towards an end in the said gate valve outside, and said feed inlet end tilts to be connected with a flange, and the top of said flange tilts to the direction of said plug in lock portion.
Described gate valve; Wherein, The top of said plug in lock portion protrudes from the top of said charging portion and said discharging portion, is arranged between said charging portion and the said discharging portion and the top of said plug in lock portion tilts to the direction of said discharging portion said plug in lock portion integral inclination.
Described gate valve; Wherein, The top of said plug in lock portion protrudes from the top of said charging portion and said discharging portion, and said charging portion is the tubular structure that substantially horizontal is extended, whole relative vertical direction deflection one angle of endless tube direction along said charging portion of said plug in lock portion.
Described gate valve, wherein, said plug in lock portion integral inclination is arranged between said charging portion and the said discharging portion and the top of said plug in lock portion tilts to the direction of said discharging portion.
Described gate valve, wherein, said discharging portion is a discharge port end towards an end in the said gate valve outside, said discharge port end connects a pipe cap.
Described gate valve; Wherein, Said pipe cap comprises the Piece hanging holder that an internal surface is provided with the cap body of linkage structure and is arranged on said cap external surface, and the middle part of said cap external surface forms a pit to said cap body sunken inside, and said Piece hanging holder is arranged in the said pit.
Described gate valve, wherein, said pipe cap also comprises at least one gusset that is arranged in the said pit and is vertically connected on the periphery of said Piece hanging holder.
Described gate valve; Wherein, Said plug in lock portion also comprises a lid, and said lid also is a hollow structure, and said lid is connected the top of said pedestal and forms one in the inside of said plug in lock portion and runs through said lid and extend into the inner plug in lock passage of said pedestal; Said groove is arranged on the inner bottom of said pedestal and the position that said plug in lock passage intersects, and said guillotine mechanism is inserted said plug in lock passage from the top of said lid.
Described gate valve, wherein, said guillotine mechanism comprises an operation equipment, a valve rod and at least one flashboard that connects successively from top to down, and said valve rod and said flashboard insert in the said plug in lock passage, and said operation equipment stretches out the top of said lid.
The utlity model has following beneficial effect; The device that is applied to transport high temperature thickness class medium when the gate valve with the utility model is for example during the pitch case; Because the inwall of said discharging portion bottom maintains an equal level with the bottom of said groove mutually; And the breach level on the said cell wall connects the bottom of said groove and the inwall bottom of said discharging portion; So remain in the high temperature thickness class medium of inside grooves can be easily to flow into discharging portion through breach inner and discharge from discharge port, therefore effectively avoided because the residual high temperature viscous medium of groove is met the generation that the condensation knot causes the situation that gate valve can't seal, the reliability when having increased the use of valve lock.And,, also can make gate valve can adapt to the variation of installing space on the engineering and Placement better through improvement to the Placement of said plug in lock portion and said flange.
Description of drawings
Fig. 1 is the structural representation of the gate valve of existing technology.
Fig. 2 is the sectional view after the embodiment one of the gate valve of the utility model cuts open along symmetry plane.
Fig. 3 is embodiment one the side view of the gate valve of the utility model.
Fig. 4 is the sectional view after the embodiment two of the gate valve of the utility model cuts open along symmetry plane.
Fig. 5 is the sectional view after the embodiment three of the gate valve of the utility model cuts open along symmetry plane.
Fig. 6 is the sectional view after the embodiment four of the gate valve of the utility model cuts open along symmetry plane.
Fig. 7 is the sectional view after the embodiment five of the gate valve of the utility model cuts open along symmetry plane.
Embodiment
For principle and the structure that further specifies the utility model, combine accompanying drawing that the preferred embodiment of the utility model is elaborated at present.
See also the embodiment's one shown in Fig. 2 and Fig. 3 structure, the gate valve of the utility model comprises and connecting successively in the horizontal direction and an inner charging portion 1, one a plug in lock portion 2 and a discharging portion 3 that communicates, can also comprise a flange 4 and a pipe cap 5.
Said charging portion 1 can be the tubular structure that substantially horizontal is extended, and its end towards the said gate valve outside is a feed inlet end.
The top of said plug in lock portion 2 can protrude from the top of said charging portion 1 and said discharging portion 3; And said plug in lock portion 2 integral body are connected between said charging portion 1 and the said discharging portion 3 vertically, and said plug in lock portion 2 can comprise a pedestal 21, a lid 22 and a guillotine mechanism 23.
Said pedestal 21 is connected between said charging portion 1 and the said discharging portion 3, and the top of said pedestal 21 can protrude from the top of said charging portion 1 and said discharging portion 2.Said guillotine mechanism 23 is inserted the inside of said pedestal 21 from the top.Said pedestal 21 and said lid 22 are hollow structure, and said lid 22 is connected the top of said pedestal 21 and forms one in the inside of said plug in lock portion 2 and runs through said lid 22 and extend into the inner plug in lock passage 24 of said pedestal 21.The position that the inner bottom of said pedestal 21 and said plug in lock passage 24 intersect is provided with a groove 211, and inserted in the said groove 211 bottom of said guillotine mechanism 23 when gate valve was closed.Can be provided with a breach (not shown) on said groove 211 and the cell wall 2111 that said discharging portion 3 links to each other.
Said guillotine mechanism 23 can be inserted said plug in lock passage 24 from the top of said lid 22.Said guillotine mechanism 23 comprises from top to down an operation equipment 231, a valve rod 232 and at least one flashboard 233 that connects successively.Said operation equipment 231 can be the device that handwheel or handle etc. are convenient to grip.Said valve rod 232 is fixedly connected on the bottom of said operation equipment 231, between said valve rod 232 and the said flashboard 233 for being spirally connected.Said valve rod 232 and said flashboard 233 insert in the said plug in lock passage 24, and said operation equipment 231 stretches out the top of said lid 22.
Said discharging portion 3 is the structure of internal run-through, and its end towards the said gate valve outside is a discharge port end, and said discharge port end can be provided with other linkage structures such as screw thread or draw-in groove.The inwall bottom 31 of said discharging portion 3 maintains an equal level with the bottom of said groove 211 mutually, and the breach level on the said cell wall 2111 connects the bottom of said groove 211 and the inwall bottom 31 of said discharging portion 3.
Said flange 4 is vertically connected on the feed inlet end of said charging portion 1.
Said pipe cap 5 is connected the discharge port end of said discharging portion 3.Said pipe cap 5 can comprise a cap body 51 and a Piece hanging holder 52, can also comprise at least one gusset 53.The internal surface of said cap body 51 is provided with linkage structure, and the middle part of the outer surface of said cap body 51 forms a pit 511 to said cap body 51 sunken insides, and said Piece hanging holder 52 is arranged in the said pit 511 on the outer surface of said cap body 51.Said gusset 53 is arranged in the said pit 511 and can be vertically connected on the periphery of said Piece hanging holder 52.
See also the embodiment's two shown in Fig. 4 structure again; The structure of the remaining part of the gate valve among this embodiment all with embodiment one in identical, different is: be arranged between said charging portion 1 and the said discharging portion 3 and the top of said plug in lock portion 2 tilts to the direction of said discharging portion 3 said plug in lock portion 2 integral inclinations.Thus, abdicate more installation space can for the charging portion 1 of said gate valve, and the space around the operation equipment also correspondingly increased, can solve the operating difficulties problem of operation equipment well.
See also the embodiment's three shown in Fig. 5 structure again; The structure of the remaining part of the gate valve among this embodiment all with embodiment one in identical; Different is: said flange 4 tilts to be connected the feed inlet end of said charging portion 1, and the top of said flange 4 tilts to the direction of said plug in lock portion 2.Thus, can realize smoothly that the inclination of gate valve connects, practice thrift installing space, thereby can adapt to the variation of installing space on the engineering and Placement well.
See also the embodiment's four shown in Fig. 6 structure again; The structure of the remaining part of the gate valve among this embodiment all with embodiment three in identical; Different is: said plug in lock portion 2 is vertically set between said charging portion 1 and the said discharging portion 3, but said plug in lock portion 2 whole relative vertical direction deflection one angle betas of endless tube direction along said charging portion 1.Thus, the part that said plug in lock portion 2 protrudes from the top of said charging portion 1 and said discharging portion 3 can avoid needing to install the equipment of gate valve, is difficult for forming with this equipment interfering.
See also the embodiment's five shown in Fig. 7 structure again; The structure of the remaining part of the gate valve among this embodiment all with embodiment three in identical; Different is: be arranged between said charging portion 1 and the said discharging portion 3 and the top of said plug in lock portion 2 tilts to the direction of said discharging portion 3, the angle of inclination of said plug in lock portion 2 relative vertical directions is θ said plug in lock portion 2 integral inclinations.Thus, the part that said plug in lock portion 2 protrudes from the top of said charging portion 1 and said discharging portion 3 also can avoid needing to install the equipment of gate valve, is difficult for forming with this equipment interfering.
In addition; Can also the structure of the gate valve among aforesaid embodiment four and the embodiment five be combined and form an embodiment six; In this embodiment: said plug in lock portion 2 not only top is arranged between said charging portion 1 and the said discharging portion 3 to the direction of said discharging portion 3 obliquely, and simultaneously also along relative vertical direction deflection one angle of the endless tube direction of said charging portion 1.Improve the interference problem between the equipment that can solve said plug in lock portion 2 and installation gate valve afterwards better like this.
The device that is applied to transport high temperature thickness class medium when the gate valve with the utility model is for example during the pitch case; Because the inwall of said discharging portion bottom maintains an equal level with the bottom of said groove mutually; And the breach level on the said cell wall connects the bottom of said groove and the inwall bottom of said discharging portion; So remaining in the high temperature thickness class medium of inside grooves can discharge through breach inflow discharging portion inside and from discharge port easily; Therefore effectively avoided because the residual high temperature viscous medium of groove is met the generation that the condensation knot causes the situation that gate valve can't seal, the reliability when having increased the use of valve lock.And,, also can make gate valve can adapt to the variation of installing space on the engineering and Placement better through improvement to the Placement of said plug in lock portion and said flange.
Yet; The above is merely the preferable possible embodiments of the utility model; And the protection domain of unrestricted the utility model, so the equivalent structure that all utilization the utility model specifications and accompanying drawing content have been done changes, all be included in the protection domain of the utility model.