CN205841785U - A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass - Google Patents
A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass Download PDFInfo
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- CN205841785U CN205841785U CN201620784178.4U CN201620784178U CN205841785U CN 205841785 U CN205841785 U CN 205841785U CN 201620784178 U CN201620784178 U CN 201620784178U CN 205841785 U CN205841785 U CN 205841785U
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Abstract
nullThis utility model belongs to the other air relief valve field of height，Relate to a kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass，Including main valve plug、Valve rod and guiding mechanism，Main valve plug is provided with the communicating passage of up/down perforation，Upper end open dismountable installation guide's valve gap of communicating passage，Guiding mechanism is arranged in described communicating passage，Valve rod passes guide's valve gap、Communicating passage and guiding mechanism，Valve rod is limited to guide's valve gap and guiding mechanism and moves up and down in communicating passage，The inwall of guide's valve gap is provided with hierarchic structure，Sidewall is provided with guide's balance pipe，The valve rod being positioned at guide's valve gap is provided with boss and sealing，The cascaded surface that boss is less with hierarchic structure internal diameter matches，Sealing coordinates with the inner wall sealing of described communicating passage，By arranging guiding mechanism，Valve rod is made to be limited to guide's valve gap and guiding mechanism，The sealing surface formed between valve rod with communicating passage is made to be easier to align，And it is difficult to skew，Sealing effectiveness is more preferable.
Description
Technical field
This utility model belongs to the other air relief valve field of height, specifically, relates to a kind of being arranged at the double of hp and lp bypass and leading
To anti-internal hemorrhage due to trauma air relief valve.
Background technology
For reducing actuator required thrust, valve employing bascule is to ensure the pressure balance of upper and lower cavity, due to valve
Can produce friction with sleeve in door motor process, have under impurity situation, graphite will soon produce abrasion, it is easy to produces and damages
Bad, this balance is easier to after being in use several times produce leakage, owing to cannot again compress this graphite material online, once rushes
Brush, will make whole graphite linings damage, produce bigger internal hemorrhage due to trauma, and this structure is simply useful in the high temperature adjustable valve of often adjustment
On, need the valve of tight closing at other this type of of height and be not suitable with, being relatively easily generated and wash away and leak.
Patent CN201420227270.1 proposes a kind of axial flow pilot-operated type multi-step pressure reduction high-pressure angle valve, including valve body and peace
The trim being loaded in valve body, it is characterised in that: in trim, sleeve lateral wall is provided with inlet communication passageway, and valve seat is positioned at set
Below Tong, valve seat coordinates with sleeve seal；Spool is loaded in sleeve, and spool lower end can coordinate with valve base sealing；Spool top
Being provided with pilot control room, the first via that pilot control room bottom centre is provided with connects with valve base center hole；Pilot valve lower end
Be placed in pilot control indoor, pilot valve lower end suit guide's stroke spring, the seal head of pilot valve lower end can with first turn on
Upper end, hole rim seal coordinates；Transparent cover is arranged on spool top, and the step in pilot valve is enclosed in guide with lower portion by transparent cover
Control room also has axial stroke, and transparent cover is provided with guide's balance pipe.This utility model can prevent the liquid containing solid particle
Producing cavitation cavitation and reduce noise, using adjustment reliable, control accuracy is high, is greatly improved valve service life, but
In this structure, guide's balance pipe is arranged in transparent cover, when step moves upward, the gap between step and guide's balance pipe by
Tapered little, liquid communication resistance is increasing, to actuator power demand bigger；Done by fluid during valve opening
Disturbing, the concentricity of spool is bad, and seal head is more difficult to align with first edge, via upper end, and sealing effectiveness is more bad.
In view of this special proposition this utility model.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, it is provided that a kind of dual guiding, close
Envelope effect significantly improves, a kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass of good seal.
For solving above-mentioned technical problem, the basic conception of this utility model employing technical scheme is:
A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass, including main valve plug, valve rod and guiding mechanism, institute
State main valve plug and be provided with the communicating passage of up/down perforation, upper end open dismountable installation guide's valve gap of described communicating passage,
Described guiding mechanism is arranged in described communicating passage, and described valve rod is through guide's valve gap, communicating passage and guiding mechanism, valve rod
Being limited to described guide's valve gap and guiding mechanism moves up and down in communicating passage, the inwall of described guide's valve gap is provided with ladder knot
Structure, sidewall is provided with guide's balance pipe, is positioned at the valve rod of described guide's valve gap and is provided with boss and sealing, described boss with
The cascaded surface that described hierarchic structure internal diameter is less matches, and described sealing coordinates with the inner wall sealing of described communicating passage.
By arranging guiding mechanism, and guide's valve gap is connected with main valve plug, makes valve rod be limited to guide's valve gap and guiding
Mechanism, and move up and down in communicating passage, make the sealing surface formed between valve rod and communicating passage move up and down at valve rod
During be easier to alignment, and be difficult to skew, sealing effectiveness is more preferable, arranges communicating passage simultaneously, make valve rod in main valve plug
One end and communicating passage seal the sealing surface cooperatively forming the anti-internal hemorrhage due to trauma in another road, reduce the probability of internal hemorrhage due to trauma；By by guide
Balance pipe is arranged on the sidewall of guide's valve gap, makes the liquid of ejection in guide's balance pipe be sprayed onto the sidewall of sleeve, and not
The sealing structure of main valve plug and main valve lid can be caused damage；By being provided with hierarchic structure at the inwall of pilot valve lid, at valve rod
During opening with the sealing surface of communicating passage formation, the wink that the sealing surface that especially valve rod and communicating passage are formed is opened
Between, make the pressure of the fluid in entrance guide's valve gap be changed stepwise, make guide's valve gap be hardly damaged.
Described guiding mechanism is guide plate, and the periphery of described guide plate seals even with the lower inner wall of described communicating passage
Connecing, described guide plate is provided with pilot hole and the intercommunicating pore in the upper and lower space that connects guide plate, described valve rod lower end pass described in lead
Xiang Kong, and can move up and down in pilot hole.
Being set to guide plate by being directed to mechanism, guide plate is provided with pilot hole and intercommunicating pore, leads to connecting at valve rod
The moment that the sealing surface that road inwall is formed is opened, owing to arranging intercommunicating pore on guide plate, fluid enters guide plate through intercommunicating pore
Top, due to the limited amount of intercommunicating pore, the moment that the sealing surface at valve rod with communicating passage formation is opened, due to guide plate
Iris action reduces the high-pressure fluid impact to above-mentioned sealing surface, reduces the damage of sealing station.
Described pilot hole is arranged at the center of described guide plate, and described intercommunicating pore is arranged at the surrounding of described pilot hole；Institute
Stating the quantity at least two of intercommunicating pore, the plurality of intercommunicating pore is the most symmetrical about pilot hole.
By above-mentioned design, making the moment that guide plate is opened in the sealing structure that valve rod and communicating passage are formed, stress is put down
Weighing apparatus, reduces the damage of guide plate.
Described guiding mechanism includes the flat board being arranged at middle part, and the middle part of described flat board is provided with pilot hole, the surrounding of flat board
Being connected by cantilever is fixing with the lower inner wall of described communicating passage, described valve rod lower end passes described pilot hole, and can lead
Move up and down in hole.
Guiding mechanism is set to one piece of flat board being arranged at middle part, and the middle part of flat board is provided with pilot hole, and the surrounding of flat board is led to
Cross that the lower inner wall of cantilever and communicating passage is fixing to be connected, by stair-stepping communicating passage, in valve rod and communicating passage formation
Moment of opening of sealing surface, make the fluid pressure in communicating passage progressively convert, the resistance of guiding mechanism convection cell is less, no
Fragile.
The quantity at least two of described cantilever, multiple described cantilevers are the most symmetrical about described pilot hole.
Described guiding mechanism is made up of at least two pieces of guide pads, and described guide pad is spaced setting along the inwall of communicating passage,
Guide pad described in polylith surrounds the pilot hole passed for valve rod near the side of communicating passage axis.
By arranging guide pad, guide pad is more firm with the combination of communicating passage, is that fluid leads at the interval of guide pad
The passage crossed, is hardly damaged.
Also include that guide's valve seat and guide's spring, described guide's valve seat are arranged in communicating passage with described guide's valve gap even
Connecing the lower end at position, described guide's valve seat coordinates with described both seals, it is achieved open and close, and described guide's spring housing is located at described
On valve rod, two ends offset with described boss and guide's valve seat respectively, and the circumference of described guide's spring is limited in hierarchic structure relatively
In little cascaded surface.
By arranging guide's valve seat, make guide's valve seat form sealing surface with sealing, add a sealing surface, make decompression
The sealing effectiveness of valve is more preferable, is not susceptible to internal hemorrhage due to trauma；By arranging guide's spring, more laborsaving when making valve opening.
Described hierarchic structure includes the first cascaded surface that internal diameter is less and the bigger second-order tread of internal diameter, the first ladder
Face is arranged at the bottom in guide's valve gap and is positioned at guide's balance pipe bottom, and it is upper that second-order tread is arranged in guide's valve gap
Portion, guide's balance pipe is arranged on second-order tread.
By arranging the hierarchic structure of this shape, the guide's balance pipe being on the one hand in guide's valve seat wall will not be because of
The up and down motion of valve rod and hinder fluid to flow through, on the other hand valve rod promotes moment, the space between valve rod and guide's valve gap from
Valve rod starts with the sealing surface of sealing, and pressure is changed stepwise change with hierarchic structure, reduces the damage of guide's valve gap.
The external diameter of described boss is less than or equal to the internal diameter of the first cascaded surface.
The external diameter of boss less than or equal to the internal diameter of the first cascaded surface, boss during motion with the first contact surface
All the time keep at a certain distance away, and be spaced constant, do not have fluid abrupt pressure change, keep fluid quickly through in guide's valve gap
Space, portion.
Described boss and the first cascaded surface seal and coordinate, and between boss and second-order tread, interval is arranged.
This design makes boss and the first cascaded surface seal, and adds again a layer sealing surface, makes valve more be difficult to internal hemorrhage due to trauma, though
The preliminary phase so promoted at valve is to arduously, but under the auxiliary of first guided missile spring, promoting also is very easily, when boss departs from
After first cascaded surface, follow-up lifting is more laborsaving, and this structural advantages is to make the sealing effectiveness of valve more preferably, is less susceptible to internal hemorrhage due to trauma.
After using technique scheme, this utility model compared with prior art has the advantages that by arranging
Guiding mechanism, and guide's valve gap is connected with main valve plug, makes valve rod be limited to guide's valve gap and guiding mechanism, and in communicating passage
Interior up and down motion, makes the sealing surface formed between valve rod with communicating passage be easier to align during valve rod moves up and down,
And it being difficult to skew, sealing effectiveness is more preferable, arranges communicating passage in main valve plug simultaneously, and the one end making valve rod is close with communicating passage
Envelope cooperatively forms the sealing surface of the anti-internal hemorrhage due to trauma in another road, reduces the probability of internal hemorrhage due to trauma；By guide's balance pipe is arranged on pilot valve
On the sidewall of lid, the liquid of ejection in guide's balance pipe is made to be sprayed onto the sidewall of sleeve, without to main valve plug and main valve lid
Sealing structure cause damage；By being provided with hierarchic structure at the inwall of pilot valve lid, close with what communicating passage was formed at valve rod
The moment that front cover is opened, make the pressure of the fluid in entrance guide's valve gap be changed stepwise, make guide's valve gap be hardly damaged, this structure
Being particluarly suitable in the liquid that viscosity is bigger using, the effect that the design of this structure produces becomes apparent from；Set by being directed to mechanism
Being set to guide plate, guide plate is provided with pilot hole and intercommunicating pore, and the sealing surface at valve rod with the formation of communicating passage inwall is opened
Moment, owing to arranging intercommunicating pore on guide plate, fluid enters the top of guide plate through intercommunicating pore, owing to the quantity of intercommunicating pore has
Limit, the moment that the sealing surface at valve rod with communicating passage formation is opened, owing to the iris action of guide plate reduces high pressure to upper
State the impact of sealing surface, reduce the damage of sealing station；By above-mentioned design, guide plate is made to be formed in valve rod and communicating passage
Seal the moment that structure is opened, stress balance, reduce the damage of guide plate；Guiding mechanism is set to one piece and is arranged at the flat of middle part
Plate, the middle part of flat board is provided with pilot hole, and the surrounding of flat board is tightly connected by the lower inner wall of cantilever with communicating passage, passes through rank
The communicating passage of scalariform, the moment that the sealing surface at valve rod with communicating passage formation is opened, makes the fluid pressure in communicating passage
Progressively converting, the resistance of guiding mechanism convection cell is less, and guiding mechanism is hardly damaged；By arranging guide pad, guide pad and company
The combination of circulation passage is more firm, and it is fast that liquid flows through speed, and is hardly damaged；By arranging guide's valve seat, make guide's valve seat
Forming sealing surface with sealing, add a sealing surface, the sealing effectiveness making air relief valve is more preferable, is not susceptible to internal hemorrhage due to trauma；Pass through
Arranging the hierarchic structure of this shape, the guide's balance pipe being on the one hand in guide's valve seat wall will not be because of the fortune up and down of valve rod
Moving and hinder fluid to flow through, on the other hand valve rod promotes moment, and the space between valve rod and guide's valve gap is from valve rod and sealing
Sealing surface start, pressure is changed stepwise change with hierarchic structure, reduces the damage of guide's valve gap；The external diameter of boss less than or
Equal to the internal diameter of the first cascaded surface, boss keeps at a certain distance away all the time with the first contact surface during motion, keeps fluid
Quickly through guide's valve gap inner space；This design makes boss and the first cascaded surface seal, and adds again a layer sealing surface, makes valve
Door is more difficult to internal hemorrhage due to trauma, although the preliminary phase promoted at valve is to arduously, but under the auxiliary of first guided missile spring, promoting also is very
Easily, after boss departs from the first cascaded surface, follow-up lifting is more laborsaving, and this structural advantages is to make the sealing effectiveness of valve
More preferably, it is less susceptible to internal hemorrhage due to trauma.
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing, as a part of the present utility model, is used for providing being further understood from of the present utility model, this practicality
Novel schematic description and description is used for explaining this utility model, but does not constitute improper restriction of the present utility model.
Obviously, the accompanying drawing in describing below is only some embodiments, to those skilled in the art, is not paying creation
Property work on the premise of, it is also possible to obtain other accompanying drawings according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is this utility model structural representation；
Fig. 2 is part A close-up schematic view in Fig. 1；
Fig. 3 is this utility model embodiment two schematic diagram；
Fig. 4 is this utility model embodiment three schematic diagram；
Fig. 5 is this utility model embodiment four schematic diagram.
In figure: 100, main valve plug 101, sleeve 102, communicating passage 103, graphite block 104, main valve lid 105, valve rod
106, valve body 201, guide's valve seat 203, guide's spring 204, guide's valve gap 205, boss the 206, first cascaded surface 207,
Second-order tread 208, guide's balance pipe 209, sealing 300, guide plate 301, pilot hole 302, intercommunicating pore 303, flat
Plate 304, guide pad 305, cantilever.
It should be noted that these accompanying drawings and word describe and are not intended as limiting design of the present utility model by any way
Scope, but be that those skilled in the art illustrate concept of the present utility model by reference specific embodiment.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in embodiment, and following example are used for illustrating this
Utility model, but it is not limited to scope of the present utility model.
Embodiment one:
As shown in Figure 1-2, a kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass, including main valve plug 100, valve
Bar 105, sleeve 101, main valve lid 104, valve body 106 and guiding mechanism, the outer wall of sleeve 101 seals with valve body 106, inwall and master
Spool 100 is sealed by graphite block 103, and main valve lid 104 is connected with valve body 106 bolt, the lower end of main valve plug 100 and sleeve 101
Hard sealing, main valve plug 100 is provided with the communicating passage 102 of up/down perforation, the dismountable installation of upper end open of communicating passage 102
Guide's valve gap 204, guiding mechanism is arranged in communicating passage 102, and valve rod 105 passes guide's valve gap 204, communicating passage 102 and
Guiding mechanism, one end of valve rod 105 is tightly connected with guide's valve gap 204, and the other end passes pilot mechanism, and valve rod 105 is limited to
Guide's valve gap 204 and guiding mechanism move up and down in communicating passage 102, and the inwall of guide's valve gap 204 is provided with hierarchic structure, side
Wall is provided with guide's balance pipe 208, and the valve rod 105 being positioned at guide's valve gap 204 is provided with boss 205 and sealing, boss 205
The cascaded surface less with described hierarchic structure internal diameter matches, and sealing coordinates with the inner wall sealing of described communicating passage 102.
By arranging guiding mechanism, and guide's valve gap is connected with main valve plug, makes valve rod 105 be limited to guide's valve gap 204
And guiding mechanism, and move up and down in communicating passage 102, make the sealing surface formed between valve rod 105 and communicating passage 102 exist
Valve rod 105 is easier to alignment during moving up and down, and is difficult to skew, and sealing effectiveness is more preferable, simultaneously in main valve plug 100
Communicating passage 102 is set, makes one end of valve rod 105 seal the sealing surface cooperatively forming the anti-internal hemorrhage due to trauma in another road with communicating passage 102,
Reduce the probability of internal hemorrhage due to trauma；By guide's balance pipe 208 is arranged on the sidewall of guide's valve gap 204, make from guide's balance pipe
In 208, the liquid of ejection is sprayed onto on sidewall, without the sealing structure of main valve plug 100 and main valve lid 104 is caused damage；Pass through
Inwall at pilot valve lid 204 is provided with hierarchic structure, the moment that the sealing surface at valve rod 105 with communicating passage 102 formation is opened,
The pressure making the fluid in entrance guide's valve gap 204 is changed stepwise, and makes guide's valve gap 204 be hardly damaged.
Embodiment two:
As Figure 1-3, the present embodiment is on the basis of embodiment one, and guiding mechanism is guide plate 300, guide plate 300
The lower inner wall of periphery and communicating passage 102 be tightly connected, guide plate 300 is provided with pilot hole 301 and connects guide plate 300
The intercommunicating pore 302 in space up and down, valve rod 105 lower end passes pilot hole 301, and can move up and down in pilot hole 301, valve rod
105 through guide's valve gap 204, communicating passage 102 and pilot hole 301, and valve rod 105 is limited to guide's valve gap 204 and guide plate 300
Move up and down in communicating passage 102.
Being set to guide plate 300 by being directed to mechanism, guide plate 300 is provided with pilot hole 301 and intercommunicating pore 302,
The moment that the sealing surface that valve rod 105 is formed with communicating passage 102 inwall is opened, owing to arranging intercommunicating pore 302 on guide plate 300,
Fluid enters the top of guide plate 300 through intercommunicating pore 302, due to the limited amount of intercommunicating pore 302, leads to connecting at valve rod 105
The moment that the sealing surface that road 102 is formed is opened, owing to the iris action of guide plate 300 reduces high pressure, above-mentioned sealing surface is rushed
Hit, reduce the damage of sealing station.
Pilot hole 301 is arranged at the center of guide plate 300, and intercommunicating pore 302 is arranged at the surrounding of pilot hole 301；Intercommunicating pore
The quantity at least two of 302, multiple intercommunicating pores 302 are the most symmetrical about pilot hole 301.
By above-mentioned design, make the wink that guide plate 300 is opened in the sealing structure that valve rod 105 and communicating passage 102 are formed
Between, stress balance, reduces the damage of guide plate 300.
Embodiment three:
As shown in Figure 4, the present embodiment is with the difference of embodiment two: communicating passage 102 is stairstepping, and from down to
Valve rod 105 is gradually reduced with the radius of the sealing surface communicating passage 102 of communication passage, and guiding mechanism includes being arranged at the flat of middle part
Plate 303, the middle part of flat board 303 is provided with pilot hole 301, and the surrounding of flat board 303 is by the bottom of cantilever 305 with communicating passage 102
Inner wall sealing connects, and valve rod 105 lower end passes pilot hole 301, and can move up and down in pilot hole 301, and cantilever 305 is with described
The inner wall sealing of communicating passage 102 connects, and the quantity at least two of cantilever 305, described cantilever 305 is about described pilot hole
301 is the most symmetrical.
By communicating passage 102 is designed as above-mentioned stairstepping, guiding mechanism is set to one piece of flat board being arranged at middle part
303, the middle part of flat board 303 is provided with pilot hole 301, in the surrounding of flat board 303 bottom by cantilever 305 and communicating passage 102
Wall is tightly connected, by stair-stepping communicating passage 102, the wink that the sealing surface at valve rod 105 with communicating passage 102 formation is opened
Between, make the fluid pressure in communicating passage 102 progressively convert, the resistance of guiding mechanism convection cell is less, guiding mechanism not rapid wear
Bad.
Embodiment four:
As it is shown in figure 5, the present embodiment and the difference of embodiment three: guiding mechanism is made up of at least two pieces of guide pads 304, leads
Arranging along the inwall interval of communicating passage 102 to block 304, the guide pad 304 described in polylith is near the side of communicating passage 102 axis
Face surrounds the pilot hole 301 passed for valve rod 105, forms flow channel for liquids between spaced guide pad 304, by arranging
Guide pad 304, guide pad 304 is more firm with the combination of communicating passage 102, and it is fast that liquid flows through speed, and is hardly damaged.
Embodiment five:
As shown in Figure 1-2, on the basis of embodiment one-embodiment four, with described guide's valve gap in communicating passage 102
The lower end of 204 connecting portions arranges guide's valve seat 201, and guide's valve seat 201 coordinates with both seals, it is achieved open and close, described elder generation
Guided missile spring 203 is set on described valve rod 105, and two ends offset with described boss 205 and guide's valve seat 201 respectively, guide's spring
The circumference of 203 is limited in the less cascaded surface of hierarchic structure, and the outer wall of main valve plug 100 and sleeve 101 are close by graphite block 103
Envelope, bottom seals firmly with sleeve 101, by arranging guide's valve seat 201, makes guide's valve seat 201 form sealing surface with sealing, increases
Having added a sealing surface, the sealing effectiveness making air relief valve is more preferable, is not susceptible to internal hemorrhage due to trauma.
Hierarchic structure includes the first cascaded surface 206 that internal diameter is less and the bigger second-order tread 207 of internal diameter, the first ladder
Face 206 is arranged at the bottom in guide's valve gap 204 and is positioned at guide's balance pipe 208 bottom, and second-order tread 207 is arranged at guide
Top in valve gap 204, guide's balance pipe 208 is arranged on second-order tread 207, by arranging the hierarchic structure of this shape,
On the one hand the guide's balance pipe 208 being in guide's valve seat 201 sidewall will not block, separately because of the up and down motion of valve rod 105
On the one hand valve rod 105 promotes moment, and the space between valve rod 105 and guide's valve gap 204 is close from valve rod 105 and sealing 209
Front cover starts, and pressure is changed stepwise change with hierarchic structure, reduces the damage of guide's valve gap 204.
The external diameter of boss 205 less than or equal to the internal diameter of the first cascaded surface 206, boss 205 during motion with
First contact surface keeps at a certain distance away all the time, keeps fluid quickly through guide's valve gap 204 inner space.
Wherein, boss 205 seals with the first cascaded surface 206 and coordinates, and between boss 205 and second-order tread 207, interval sets
Putting, this design makes boss 205 seal with the first cascaded surface 206, adds again a layer sealing surface, makes valve more be difficult to internal hemorrhage due to trauma,
Although the preliminary phase promoted at valve is to arduously, but under the auxiliary of first guided missile spring 203, promoting also is very easily, when convex
After platform 205 departs from the first cascaded surface 206, follow-up lifting is more laborsaving, and this structural advantages is to make the sealing effectiveness of valve more preferably,
It is less susceptible to internal hemorrhage due to trauma.
Found by great many of experiments, the 1/2-2/ that axial height is guide's valve gap 204 axial height of the first cascaded surface 206
3, the spoilage of guide's valve gap 204 is minimum.
Guide's balance pipe 208 is centrally located at the centre position of described second-order tread 207, for non-stressed concentrated position,
Fluid pours in from this position, and the spoilage of guide's valve gap 204 is minimum.
The above is only preferred embodiment of the present utility model, not makees this utility model any pro forma
Limit, although this utility model is disclosed above with preferred embodiment, but is not limited to this utility model, any familiar
The technical staff of this patent is in the range of without departing from technical solutions of the utility model, when the technology contents of available above-mentioned prompting is made
Go out a little change or be modified to the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solutions of the utility model,
Any simple modification, equivalent variations and the modification made above example according to technical spirit of the present utility model, the most still belongs to
In the range of this utility model scheme.
Claims (10)
1. being arranged at the double of hp and lp bypass and guide an anti-internal hemorrhage due to trauma air relief valve, including main valve plug, valve rod and guiding mechanism, it is special
Levy and be: described main valve plug is provided with the communicating passage of up/down perforation, the dismountable installation of upper end open of described communicating passage
Guide's valve gap, described guiding mechanism is arranged in described communicating passage, and described valve rod is through guide's valve gap, communicating passage and guiding
Mechanism, valve rod is limited to described guide's valve gap and guiding mechanism and moves up and down in communicating passage, described guide's valve gap interior
Wall is provided with hierarchic structure, and sidewall is provided with guide's balance pipe, and the valve rod being positioned at described guide's valve gap is provided with boss and sealing
Portion, the cascaded surface that described boss is less with described hierarchic structure internal diameter matches, and described sealing is interior with described communicating passage
Wall seals and coordinates.
A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass the most according to claim 1, it is characterised in that:
Described guiding mechanism is guide plate, and the periphery of described guide plate is tightly connected with the lower inner wall of described communicating passage, described in lead
Being provided with pilot hole and the intercommunicating pore in the upper and lower space that connects guide plate to plate, described valve rod lower end passes described pilot hole, and can
Move up and down in pilot hole.
A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass the most according to claim 2, it is characterised in that:
Described pilot hole is arranged at the center of described guide plate, and described intercommunicating pore is arranged at the surrounding of described pilot hole；Described intercommunicating pore
Quantity at least two, the plurality of intercommunicating pore is the most symmetrical about pilot hole.
A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass the most according to claim 1, it is characterised in that:
Described guiding mechanism includes the flat board being arranged at middle part, and the middle part of described flat board is provided with pilot hole, and the surrounding of flat board passes through cantilever
Fixing with the lower inner wall of described communicating passage is connected, described valve rod lower end through described pilot hole, and can be in pilot hole on
Lower motion.
A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass the most according to claim 4, it is characterised in that:
The quantity at least two of described cantilever, multiple described cantilevers are the most symmetrical about described pilot hole.
A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass the most according to claim 1, it is characterised in that:
Described guiding mechanism is made up of at least two pieces of guide pads, and described guide pad is spaced setting along the inwall of communicating passage, described in polylith
Guide pad surround the pilot hole passed for valve rod near the side of communicating passage axis.
7., according to the arbitrary described a kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass of claim 1-6, it is special
Levy and be: also include that guide's valve seat and guide's spring, described guide's valve seat are arranged in communicating passage with described guide's valve gap even
Connecing the lower end at position, described guide's valve seat coordinates with described both seals, it is achieved open and close, and described guide's spring housing is located at described
On valve rod, two ends offset with described boss and guide's valve seat respectively, and the circumference of described guide's spring is limited in hierarchic structure relatively
In little cascaded surface.
A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass the most according to claim 7, it is characterised in that
Described hierarchic structure includes the first cascaded surface that internal diameter is less and the bigger second-order tread of internal diameter, and the first cascaded surface is arranged at
Bottom in guide's valve gap and be positioned at guide's balance pipe bottom, second-order tread is arranged at the top in guide's valve gap, Xian Daoping
Weighing apparatus hole is arranged on second-order tread.
A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass the most according to claim 8, it is characterised in that
The external diameter of described boss is less than or equal to the internal diameter of the first cascaded surface.
A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass the most according to claim 8, its feature exists
In, described boss and the first cascaded surface seal and coordinate, and between boss and second-order tread, interval is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620784178.4U CN205841785U (en) | 2016-07-22 | 2016-07-22 | A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620784178.4U CN205841785U (en) | 2016-07-22 | 2016-07-22 | A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841785U true CN205841785U (en) | 2016-12-28 |
Family
ID=57625663
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620784178.4U Active CN205841785U (en) | 2016-07-22 | 2016-07-22 | A kind of anti-internal hemorrhage due to trauma air relief valve of double guiding being arranged at hp and lp bypass |
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| CN (1) | CN205841785U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561573A (en) * | 2018-04-23 | 2018-09-21 | 浙江德卡控制阀仪表有限公司 | Decompression cooling regulating valve |
| CN108799525A (en) * | 2018-09-10 | 2018-11-13 | 陕西博菲特流体控制装备制造有限公司 | Needle-like pressure reducing valve pressure reduction structure with double centering guide frames |
| CN113819294A (en) * | 2021-09-27 | 2021-12-21 | 浙江佳明新能源装备有限公司 | Electric stop valve |
-
2016
- 2016-07-22 CN CN201620784178.4U patent/CN205841785U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561573A (en) * | 2018-04-23 | 2018-09-21 | 浙江德卡控制阀仪表有限公司 | Decompression cooling regulating valve |
| CN108799525A (en) * | 2018-09-10 | 2018-11-13 | 陕西博菲特流体控制装备制造有限公司 | Needle-like pressure reducing valve pressure reduction structure with double centering guide frames |
| CN108799525B (en) * | 2018-09-10 | 2024-02-23 | 陕西博菲特流体控制装备制造有限公司 | Needle type pressure reducing valve pressure reducing structure with double centering guide structures |
| CN113819294A (en) * | 2021-09-27 | 2021-12-21 | 浙江佳明新能源装备有限公司 | Electric stop valve |
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