CN107366750A - A kind of refrigeration system stop valve - Google Patents
A kind of refrigeration system stop valve Download PDFInfo
- Publication number
- CN107366750A CN107366750A CN201610312342.6A CN201610312342A CN107366750A CN 107366750 A CN107366750 A CN 107366750A CN 201610312342 A CN201610312342 A CN 201610312342A CN 107366750 A CN107366750 A CN 107366750A
- Authority
- CN
- China
- Prior art keywords
- valve
- location division
- sealing
- valve rod
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Abstract
The present invention provides a kind of refrigeration system stop valve, and the reliable location of valve rod can be realized by the cooperation of valve rod and valve body, without auxiliary members such as back-up rings, so as to avoid the potential safety hazard triggered by the installation of auxiliary member, improves safety in utilization.Stop valve provided by the invention includes the valve body with valve port and the valve rod for opening and closing the valve port, and the valve body is provided with the first location division, and the valve rod is provided with the second location division；During the valve port standard-sized sheet, first location division coordinates with second location division, to position the valve rod.The stop valve of the present invention, valve body has the location division to cooperate with valve rod, so as to which the positioning of valve rod is realized by valve body after valve rod installation, without auxiliary members such as back-up rings, also would not because auxiliary member neglected loading, install not in place or misloading cause the positioning of valve rod unreliable, the generation of security incident such as flown out so as to avoid valve rod, and then add the safety in utilization and reliability of stop valve.
Description
Technical field
The present invention relates to refrigeration system technical field, ends more particularly to a kind of refrigeration system
Valve.
Background technology
The various valves of generally use realize the control to refrigerant in refrigeration system, in air-conditioning system
The connection of outdoor unit and indoor set is realized using stop valve.Stop valve is will before air conditioner is installed
The fluid passages such as refrigerant disconnect, when seated again by a kind of operable manual of coolant path connection
Switch valve.
Fig. 1 is refer to, Fig. 1 is a kind of sectional view of typical stop valve in the prior art.
As shown in figure 1, in the prior art, stop valve is typically by valve body 1 ', valve rod 2 ', bonnet
3 ', O-ring 4 ', back-up ring 5 ', union nut 6 ', sealing cap 7 ', valve inside 8 ', filling bonnet
The compositions such as 9 '；Valve inside 8 ' uses when vacuumizing or filling refrigerant, when being filled into air conditioner
During refrigerant, it can be filled by valve inside 8 '.Wherein, valve body 1 ' has first passage and the
Two passages, valve seat is provided between first passage and second channel；Valve body 1 ' is internally provided with
Valve rod 2 ', the screw thread that valve rod 2 ' has the valve head of circular cone shape and coordinated with the inner thread of valve body 1 '
Portion；By rotation valve rod 2 ', valve rod 2 ' is moved up and down vertically, valve head is connected with valve seat
Touch or separate, so as to connect or disconnect first passage and second channel.In addition, O-ring is set
Between valve body 1 ' and valve rod 2 ', for preventing the coolant leakage between valve body 1 ' and valve rod 2 '；
Valve body 1 ' also has the third channel connected with refrigerant, the third channel connection internal with valve body 1 '
Place is provided with valve inside 8 ', the filling end as coolant charging-up；Bonnet 3 ', filling bonnet 9 '
Used as secondary seal, union nut 6 ' is as being connected use with indoor set.
Before air-conditioning installation, valve rod 2 ' contacts sealing with valve seat with the valve head of circular cone shape, so as to
The connection of the second channel of outdoor system side and the first passage of indoor is closed in cut-out；In air-conditioning
After installation, by rotation valve rod 2 ', make to move on to the position of back-up ring 5 ' (as shown in Figure 1) on valve rod 2 ',
To connect first passage and second channel.
Above-mentioned existing stop valve, connect first passage and second when valve rod 2 ' moves up and lead to
During road, back-up ring 5 ' compresses valve rod 2 ' downwards, the positioning of valve rod 2 ' during realizing valve port standard-sized sheet.
That is in valve port standard-sized sheet, the positioning of valve rod 2 ' is all realized by back-up ring 5 ', if gear
Enclose 5 ' neglected loadings or installation is not in place, there is the risk that valve rod 2 ' flies out, easily trigger safe thing
Therefore.
Therefore, a kind of refrigeration system stop valve how is designed, to improve valve rod reliability of positioning,
And then the safety in utilization of stop valve is improved, turn into the current urgent need to resolve of those skilled in the art
Technical problem.
The content of the invention
It is an object of the invention to provide a kind of refrigeration system stop valve, valve rod and valve can be passed through
The reliable location of valve rod is realized in the cooperation of body, without auxiliary members such as back-up rings, so as to avoid
The potential safety hazard triggered by the installation of auxiliary member, improve safety in utilization.
In order to solve the above technical problems, the present invention provides a kind of refrigeration system stop valve, including
Valve body with valve port and the valve rod for opening and closing the valve port, the valve body are provided with the first positioning
Portion, the valve rod are provided with the second location division；During the valve port standard-sized sheet, first location division with
Second location division coordinates, to position the valve rod.
The stop valve of the present invention, valve body has the location division to cooperate with valve rod, so as in valve
The positioning of valve rod is realized after bar installation by valve body, without auxiliary members such as back-up rings,
Would not because auxiliary member neglected loading, install not in place or misloading cause the positioning of valve rod unreliable,
The generation of security incident such as flown out so as to avoid valve rod, and then add the use peace of stop valve
Full property and reliability.
Alternatively, first location division compresses second location division towards valve closing direction, with
Position the valve rod.
Alternatively, the inwall of the valve body has the ring-shaped step towards the valve port, to be formed
First location division；The valve rod has the annular protrusion away from the valve port, to be formed
State the second location division.
Alternatively, the external diameter of second location division successively decreases on the direction of the valve port,
To form the cone that simultaneously linear sealing is supported with the seamed edge of first location division.
Alternatively, the valve rod has the first sealing, second location division and described first
Have between sealing and be used to fill the first seal groove of seal, during so as to the valve port standard-sized sheet
With the valve seal.
Alternatively, the valve rod also has the second sealing for being used for sealing the valve port, described
The external diameter of second sealing is less than or equal to the external diameter of first sealing.
Alternatively, carried out between first sealing and second sealing by connecting portion
Connection, the connecting portion have the recess that radial dimension is less than second sealing, the valve
During mouth standard-sized sheet, the recess forms the runner of refrigerant.
Alternatively, second sealing has the conical surface with the valve port linear sealing.
Alternatively, second sealing includes the first end socket and the second envelope being axially sequentially connected
Head, first end socket and the valve port coordinate, first end socket and second end socket it
Between have and be used to fill the second seal groove of seal, so as to when the valve port is fully closed with the valve
Body seals.
Alternatively, the valve body include axially being sequentially communicated and the first chamber that internal diameter increases successively,
Second chamber, the 3rd chamber, the 4th chamber and the 5th chamber；First chamber coordinates with the threaded stem,
Second chamber connects to form ring-shaped step with the inwall of the 3rd chamber, fixed as described first
Position portion；3rd chamber is used to accommodate second location division to first sealing；It is described
4th chamber and the 5th chamber are communicated with outer tube, and are connected by the valve port；It is described
Valve rod loads the valve body by the 5th chamber to first chamber.
Brief description of the drawings
Fig. 1 is a kind of sectional view of typical stop valve in the prior art；
Fig. 2 is that stop valve provided by the present invention is in valve port standard-sized sheet in a kind of embodiment
When sectional view；
Fig. 3 be stop valve shown in Fig. 2 be in valve port it is fully closed when sectional view；
Fig. 4 is a kind of sectional view of the valve body of stop valve provided by the present invention in set-up mode；
Fig. 5 is a kind of sectional view of the valve rod of stop valve provided by the present invention in set-up mode；
Fig. 6 is section view of the valve rod of stop valve provided by the present invention in another set-up mode
Figure.
In Fig. 1：
Valve body 1 ', valve rod 2 ', bonnet 3 ', O-ring 4 ', back-up ring 5 ', union nut 6 ',
Sealing cap 7 ', valve inside 8 ', filling bonnet 9 '；
Fig. 2-6：
Valve body 1, valve port 11, the first location division 12, the first chamber 13, the second chamber the 14, the 3rd
Chamber 15, the 4th chamber 16, the 5th chamber 17, sleeve pipe 18；
Valve rod 2, the second location division 21, the first sealing 22, the first seal groove 23, second
Sealing 24, the conical surface 241, the first end socket 242, the second end socket 243, the second seal groove 244,
Connecting portion 25, recess 26, threaded portion 27.
Embodiment
The present invention core be to provide a kind of refrigeration system stop valve, can by valve rod 2 with
The reliable location of valve rod 2 is realized in the cooperation of valve body 1, without auxiliary members such as back-up rings, so that
The potential safety hazard triggered by the installation of auxiliary member is avoided, improves safety in utilization.
Below in conjunction with accompanying drawing, refrigeration system provided by the present invention is specifically situated between with stop valve
Continue, so as to those skilled in the art's accurate understanding technical scheme.
Axial direction as described herein is reference with valve rod 2, and the axial direction is the bearing of trend of valve rod 2；
To surround axially direction to be circumferential, using the direction where the diameter of valve rod 2 as radially.
For ease of description, this paper axial direction can also be defined as above-below direction, the shutoff valve of valve rod 2
Under direction of motion during mouth 11 is, direction of motion when valve rod 2 opens valve port 11 is upper.But
It is, it should it is appreciated that it is described up and down only for the purposes of description, do not indicate that and stop valve is set
Any restrictions in direction；Retouch in the orientation that above-below direction specifically described herein is referred in Fig. 2-6
State.
First, second grade word as described herein, only for the same or similar difference of specification configuration
Part or different structure, certain particular determination to order is not indicated that.
As shown in Figures 2 and 3, the invention provides a kind of refrigeration system stop valve, including
Valve rod 2 and valve body 1, valve body 1 have valve port 11, and valve rod 2 is arranged in valve body 1, is used for
Open and close valve port 11；Valve body 1 is provided with the first location division 12, and valve rod 2 is provided with can be with the first positioning
The second location division 21 that portion 12 coordinates；When 11 standard-sized sheet of valve port, the first location division 12 and
Two location divisions 21 coordinate, and then realize the positioning to valve rod 2 by valve body 1.
It can be seen that the present invention is passed through by the setting of the first location division 12 and the second location division 21
Valve body 1 realizes the positioning to valve rod 2 so that and valve rod 2 is maintained at the position of the standard-sized sheet of valve port 11,
Without auxiliary members such as back-up rings.On the one hand, due to without auxiliary member, avoiding because of auxiliary member
Installation caused influence is positioned on valve rod 2, such as auxiliary member neglected loading, installation it is not in place or wrong
The risk for filling and causing valve rod 2 to fly out；On the other hand, with using back-up ring etc. auxiliary in the prior art
Assistant piece positioning is compared, and realizes that the positioning of valve rod 2 can be with using the respective outer side edges of valve body 1 and valve rod 2
Reliability of positioning is effectively improved, and then improves the safety in utilization of valve rod 2.
Specifically, the structure type of the first location division 12 and the second location division 21 is various, as long as
It can cooperate and realize positioning of the valve rod 2 under the full-gear of valve port 11.Such as first
The location division 21 of location division 12 and second can use clamping, grafting, abutting etc. removably to connect
Connect mode, so as in 11 standard-sized sheet of valve port realize coordinate positioning, the fully closed grade of valve port 11 other
Matching relationship is released during working position and discharges valve rod 2.In other words, those skilled in the art can be with
The fit structure of first location division 12 and the second location division 21 is rationally set as needed, with reality
The positioning and release of existing valve rod 2.
In one embodiment, the first location division 12 can abut cooperation with the second location division 21,
So that the first location division 12 compresses the second location division 21 towards the direction of valve closing, to limit valve rod 2
Continue to move towards valve opening position, and then valve rod 2 is limited in the position corresponding to the standard-sized sheet of valve port 11
Put, the positioning of valve rod 2 when realizing 11 standard-sized sheet of valve port.
In detail, the inwall of valve body 1 can set the ring-shaped step towards valve port 11, as
One location division 12；Valve rod 2 can set the annular protrusion away from valve port 11, fixed as second
Position portion 21.When valve rod 2 moves towards valve opening position, annular protrusion moves close to ring-shaped step,
When valve rod 2 moves to 11 standard-sized sheet of valve port, annular protrusion is formed with ring-shaped step and abutted, annular
Step compresses annular protrusion towards valve closing direction, and then valve rod 2 is positioned.
Ring-shaped step and annular protrusion can be the structure being mutually matched, i.e. annular protrusion can be set
Be set to the ledge structure away from valve port 11, so as to the ring-shaped step as the first location division 12
Match；Or the structure of annular protrusion can be other structures form, as long as can support
Ring-shaped step, to be positioned to valve rod 2, such as projection cube structure.
In wherein a kind of embodiment, the second location division 21 could be arranged to cone, the circle
The external diameter of cone successively decreases on the direction of valve port 11, so as to the rib with the first location division 12
While supporting, and form linear sealing cooperation.Ring-shaped step can be two-stage step, wherein one-level platform
The edge of rank bends and is connected with another grade of step vertically, and the edge just forms above-mentioned rib
Side.
Ring-shaped step forms cascaded surface, the second location division 21 of valve rod 2 in the inwall of valve body 1
It is external diameter in the cone to successively decrease on the direction of valve port 11, the external diameter of cone can not be with rank
Tread matches completely so that cone with the prism shape of cascaded surface is linear contacts；On the one hand,
Linear contact causes the linear compression fit of the prism shape of cone and ring-shaped step, to realize valve
The positioning of bar 2；On the other hand, linear contact realizes the hard sealing of valve rod 2 and valve body 1,
Thus two seals are formd between valve rod 2 and valve body 1, is together O-ring soft seal, separately
The outer hard sealing formed together between valve rod 2 and valve body 1, so as to avoid refrigerant from flowing into valve
Body 1 is used for the cavity for accommodating valve rod 2, improves sealing reliability.
On the basis of the above, in stop valve of the invention, valve rod 2 can also have the first sealing
Portion 22, filling sealing can be provided between the second location division 21 and the first sealing 22
First seal groove 23 of part, the second location division 21 may be at the first sealing 22 away from valve port
The top of first sealing 22 in 11 direction, i.e. Fig. 2 and Fig. 3.When 11 standard-sized sheet of valve port,
Second location division 21 is engaged with the first location division 12 of valve body 1, and forms linear hard sealing,
Realize the once sealing of valve body 1 and valve rod 2；First sealing 22 blocks the epicoele of valve body 1,
And realize the sealing with the inwall of valve body 1 by the seal being filled in the first seal groove 23, i.e.,
The secondary seal of valve body 1 and valve rod 2., can be with as shown in Fig. 2 by above-mentioned secondary seal
When effectively preventing 11 standard-sized sheet of valve port, the refrigerant in the central cavity of valve body 1 penetrates into valve
The epicoele of body 1, so as to prevent the driving part of valve rod 2 of the refrigerant damage in epicoele,
To ensure the normal operation of valve rod 2.
Valve rod 2 can also have the second sealing 24, for sealing valve port 11.Wherein, second
The external diameter of sealing 24 can be less than or equal to the external diameter of the first sealing 22.Due to valve port 11
During standard-sized sheet, the second sealing 24 can take the circulation passage of refrigerant, when the second sealing 24
External diameter be less than or equal to the first sealing 22 external diameter when, the second sealing can be effectively reduced
24 volume, and then reduce the body of the circulation passage of the refrigerant shared by the second sealing 24
Product, improve the circulation of unit interval inner refrigerant.Moreover, valve rod 2 can use upside-down mounting
Form is fit into valve body 1, i.e., valve rod 2 loads in valve body 1 from the bottom to top, due to second
Sealing 24 is in the lower section of the first sealing 22, when the second sealing 24 external diameter be less than etc.
, can be as detailed below on valve in order to the installation of valve rod 2 when the external diameter of the first sealing 22
The explanation that bar 2 is installed.
First sealing 22 can be attached with the second sealing 24 by connecting portion 25,
Second location division 21, the first sealing 22, the sealing 24 of connecting portion 25 and second can be along axles
To being sequentially connected.When 11 standard-sized sheet of valve port, the first sealing 22 seals with valve body 1, now,
The sealing 24 of connecting portion 25 and second is placed in the free air space of refrigerant, reduces refrigerant
Flow.For above-mentioned technical problem, the connecting portion 25 of the application can be small provided with radial dimension
In the first sealing 22 and the recess 26 of the second sealing 24, to reduce shared by connecting portion 25
Space so that recess 26 forms the runner of refrigerant, to reduce setting because of connecting portion 25
Put the influence of refrigerant flow during to 11 standard-sized sheet of valve port.
To shorten the switch over travel of valve rod 2, those skilled in the art can increase connecting portion 25
Axial dimension, and then when reducing valve opening and valve closing valve rod 2 axial displacement；But when even
During the axial dimension increase of socket part 25, the flow channel of refrigerant can be taken, reduces flow.Cause
This, the connecting portion 25 of the application is provided with recess 26, to reduce the volume of connecting portion 25, utilizes
Runner of the recess 26 as refrigerant, play a part of increasing flow.
Incorporated by reference to Fig. 4, in stop valve of the invention, valve body 1 can include successively connecting vertically
The first chamber 13, the second chamber 14, the 3rd chamber 15, the 4th chamber 16 that logical and internal diameter increases successively
Can be from top to bottom sequentially communicated with the 5th chamber 17, five, wherein, the first chamber 13 be used for
The screw thread of valve rod 2 coordinates, and to be moved up and down with axial direction of the ovable valve stem 2 along valve body 1, and then opens and closes
Valve port 11；The chamber 15 of first chamber 13 to the 3rd is in the second sealing 24 for accommodating valve rod 2
More than part, the threaded portion of valve rod 2 can set the second location division 21 below 27, second
The top of location division 21 is inserted in the second chamber 14, and bottom is in the top of the 3rd chamber 15；Second
Chamber 14 connects with the inwall of the 3rd chamber 15 and forms above-mentioned ring-shaped step, as the first location division
12；The bottom of second location division 21 to the first sealing 22 is in the 3rd chamber 15；4th chamber
16 and the 5th chamber 17 be communicated with outer tube, one of outer tube connects with indoor,
Another outer tube connects with outside, passes through valve port between the 4th chamber 16 and the 5th chamber 17
11 are connected.
When valve body 1 is using said structure, valve rod 2 can be by the chamber 13 of the 5th chamber 17 to the first
Load in valve body 1, i.e., load valve body 1 according to the direction in Fig. 2-3 and Fig. 5 from the bottom to top
It is interior；Position corresponding to the standard-sized sheet of valve port 11, the second location division 21 of valve rod 2 and valve body
1 the first location division 12 is engaged, so as to realize that the installation of valve rod 2 positions.Due to first fixed
Position portion 12 can compress the second location division 21 towards valve closing direction, during 2 upside-down mounting of valve rod, if
It is installed in place, the first location division 12 will apply the active force towards valve closing direction to valve rod 2,
Avoid valve rod 2 from flying out, improve the security of the installation of valve rod 2.
To realize the upside-down mounting of valve rod 2, the 4th chamber 16 of valve body 1 and the internal diameter of the 5th chamber 17 are equal
More than the second sealing 24, now, to realize the sealing of the second sealing 24 and valve port 11,
Can in the 5th chamber 17 built-in sleeve pipe 18, valve rod 2 installation after load the sleeve pipe 18, with
Just the valve port 11 that can be sealed with the second sealing 24 is formed in one end of sleeve pipe 18, such as Fig. 4
It is shown.
Below in conjunction with Fig. 5 and Fig. 6, the valve rod 2 of the present invention is described in detail.
As shown in figure 5, in one embodiment, valve rod 2 of the invention can include by up to
Under be sequentially connected threaded portion 27, the second location division 21, the first sealing 22, connecting portion 25
With the second sealing 24；It should be noted that threaded portion 27 is formed in the epimere portion of valve rod 2, and
The top of valve rod 2 offers installation corner apertures, and the installation corner apertures can be hexagon ring, should by operation
Hexagon ring is by the screw-internal thread fit of the threaded portion 27 of valve rod 2 and valve body 1, so as to by valve rod 2
It is screwed into valve body 1, equally, when needing to open or close valve port, is pushed up by operating valve lever 2
The screw thread matching relationship between the hexagon ring and threaded portion 27 and valve body 1 opened up is held to can be achieved.
Wherein, the second location division 21 can be the cone that external diameter successively decreases from the bottom to top, circular cone
The tapered slope of body forms sealing surface, to be sealed with valve body 1；First sealing 22 and second
The first seal groove 23 between location division 21 can fill seal, to be formed and valve body 1
Sealing；Second sealing 24 can form the conical surface 241 towards one end of valve port 11, to be formed
Can be with the sealing surface of the linear sealing of valve port 11.Using said structure form, during 11 standard-sized sheet of valve port,
Valve body 1 is realized by the second location division 21 and the seal being filled in the first seal groove 23
With the dual-seal of valve rod 2；When valve port 11 is fully closed, entered by second seal and valve port 11
Row is tightly connected.The second sealing 24 for being against valve port 11 simultaneously can also be soft sealing structure,
It should be noted that any restrictions are not made to the material of sealing structure herein.
In addition, those skilled in the art can form the recess 26 by various modes, for example,
Breach, groove etc. can be opened up in connecting portion 25, it is also possible that the localized indentation of connecting portion 25
Fall into and form the recess 26., can be in connecting portion 25 in wherein a kind of specific set-up mode
Outer wall open up groove, to form the recess 26.The outer wall of the connecting portion 25 is relative
For the longitudinal center line of valve rod 2, the direction away from longitudinal center line is outer.As long as
Groove is opened up in the outer wall of connecting portion 25, is less than the He of the first sealing 22 to form radial dimension
The position of second sealing 24 can be used as the recess 26, the shape of groove and open up position
Putting can be with unrestricted.
As shown in fig. 6, in another embodiment, valve rod 2 can include successively connecting vertically
The first end socket 242 and the second end socket 243 connect, the first end socket 242 coordinate with valve port 11, the
There is the second seal groove for being used for filling seal between one end socket 242 and the second end socket 243
244；When the first end socket 242 is closed valve port 11 and when making valve port 11 fully closed, the second end socket
243 as valve port below 11, and the seal in the second seal groove 244 is by valve body 1 and valve
Bar 2 seals.As shown in fig. 6, the second end socket 243 may be at the lower section of the first end socket 242,
When being set with above-mentioned sleeve pipe 18 in valve body 1 to form valve port 11, the second end socket 243 can
To be placed in sleeve pipe 18；At the same time it can also set the first end socket 242, by the first end socket 242
The structure types such as taper surface are arranged to towards the end face of valve port 11, it is close with valve port 11 to realize
Envelope connection.
In this embodiment, recess 26 is referred to an embodiment and is configured, herein not
Repeat again.In view of the setting of the first end socket 242 and the second end socket 243, can suitably reduce company
The size of socket part 25, the size of recess 26 can also be adjusted as needed.
It is appreciated that the stop valve of the present invention, without realizing valve rod using auxiliary members such as back-up rings
Positioning, also with regard to cooperation positioning need not be carried out using copper bonnet and back-up ring etc., therefore it can take
Disappear copper bonnet, to reduce cost.
The stop valve of the present invention is used for refrigeration system, is particularly suitable for use in R22, R407C, R410A
Deng in the split-type air conditioner of refrigerant or other cooling cycle systems.Cut in view of refrigeration system is used
The part that only valve includes is more, and the structure of each part is also complex, herein only to its valve rod 2
And associated components are illustrated, part not refer to prior art to the greatest extent for other, no longer superfluous herein
State.
Refrigeration system provided by the present invention is described in detail with stop valve above.Herein
Apply specific case to be set forth the principle and embodiment of the present invention, above example
Explanation be only intended to help understand the present invention core concept.It should be pointed out that for this technology
, under the premise without departing from the principles of the invention, can also be right for the those of ordinary skill in field
The present invention carries out some improvement and modification, and these are improved and modification also falls into the claims in the present invention
Protection domain in.
Claims (10)
1. a kind of refrigeration system stop valve, including the valve body (1) with valve port (11) and
For opening and closing the valve rod (2) of the valve port (11), it is characterised in that the valve body (1) sets
There is the first location division (12), the valve rod (2) is provided with the second location division (21)；The valve port
(11) during standard-sized sheet, first location division (12) coordinates with second location division (21),
To position the valve rod (2)；The valve rod (2) also has first be sequentially connected vertically close
Envelope portion (23), connecting portion (25) and the second sealing (24), first sealing (23)
With the sealing of the valve body (1) during for realizing the valve port (11) standard-sized sheet, described second is close
Envelope portion is used to seal the valve port (11), and there is the connecting portion (25) radial dimension to be less than institute
State the recess (26) of the second sealing (24), during valve port (11) standard-sized sheet, the recess
(26) runner of refrigerant is formed.
2. stop valve as claimed in claim 1, it is characterised in that first location division
(12) second location division (21) is compressed towards valve closing direction, to position the valve rod (2).
3. stop valve as claimed in claim 2, it is characterised in that the valve body (1)
Inwall has the ring-shaped step towards the valve port (11), to form first location division (12)；
The valve rod (2) has the annular protrusion away from the valve port (11), to form described second
Location division (21).
4. stop valve as claimed in claim 3, it is characterised in that second location division
(21) external diameter successively decreases on the direction of the valve port (11), to be formed and described the
The seamed edge of one location division (12) is supported and the cone of linear sealing.
5. the stop valve as described in claim any one of 1-4, it is characterised in that the valve rod
(2) installation corner apertures is offered away from one end of the valve port (11), and it is in the installation
Part between corner apertures and second location division (21) is provided with threaded portion (27), the valve body
(1) it is provided with the internal thread coordinated with the threaded portion (27).
6. stop valve as claimed in claim 5, it is characterised in that second location division
(21) have between first sealing (22) and be used for the first sealing for filling seal
Groove (23), to be sealed during the valve port (11) standard-sized sheet with the valve body (1).
7. stop valve as claimed in claim 6, it is characterised in that second sealing
(24) external diameter is less than or equal to the external diameter of first sealing (22).
8. stop valve as claimed in claim 7, it is characterised in that second sealing
(24) there is the conical surface (241) with the valve port (11) linear sealing.
9. stop valve as claimed in claim 7, it is characterised in that second sealing
(24) the first end socket (242) and the second end socket (243) being axially sequentially connected are included, it is described
First end socket (242) coordinates with the valve port (11), first end socket (242) and institute
Stating has the second seal groove (244) for being used for filling seal between the second end socket (243), with
Toilet state valve port (11) it is fully closed when with the valve body (1) seal.
10. stop valve as claimed in claim 5, it is characterised in that the valve body (1)
Including be axially sequentially communicated and the first chamber (13) that internal diameter increases successively, the second chamber (14),
3rd chamber (15), the 4th chamber (16) and the 5th chamber (17)；First chamber (13) and institute
State the inwall of the cooperation of valve rod (2) screw thread, second chamber (14) and the 3rd chamber (15)
Connection forms ring-shaped step, as first location division (12)；3rd chamber (15) is used
In receiving second location division (21) to first sealing (22)；4th chamber (16)
Outer tube is communicated with the 5th chamber (17), and is connected by the valve port (11)；
The valve rod (2) loads the valve body by the 5th chamber (17) to first chamber (13)
(1)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312342.6A CN107366750B (en) | 2016-05-11 | 2016-05-11 | Stop valve for refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312342.6A CN107366750B (en) | 2016-05-11 | 2016-05-11 | Stop valve for refrigerating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107366750A true CN107366750A (en) | 2017-11-21 |
| CN107366750B CN107366750B (en) | 2020-05-01 |
Family
ID=60303525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610312342.6A Active CN107366750B (en) | 2016-05-11 | 2016-05-11 | Stop valve for refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107366750B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533760A (en) * | 2018-05-29 | 2018-09-14 | 芜湖三花自控元器件有限公司 | A kind of novel cutoff valve sealing structure |
| CN111336298A (en) * | 2018-12-19 | 2020-06-26 | 浙江三花智能控制股份有限公司 | Valve device and pipeline connecting structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10274342A (en) * | 1997-03-31 | 1998-10-13 | Chiyoda Kucho Kiki Kk | Valve device |
| CN201121714Y (en) * | 2007-12-05 | 2008-09-24 | 李伟军 | Break valve for refrigerating system |
| CN203627813U (en) * | 2013-10-14 | 2014-06-04 | 浙江盾安禾田金属有限公司 | Stop valve for air conditioner |
| CN204437291U (en) * | 2015-01-11 | 2015-07-01 | 赵德鸿 | Stop valve |
| CN104832655A (en) * | 2014-02-12 | 2015-08-12 | 浙江盾安禾田金属有限公司 | Stop valve for air conditioner |
| CN105065693A (en) * | 2015-07-14 | 2015-11-18 | Tcl空调器(中山)有限公司 | Stop valve and air conditioner |
| CN107178621A (en) * | 2016-03-11 | 2017-09-19 | 浙江三花智能控制股份有限公司 | A kind of refrigeration system stop valve and its valve rod |
-
2016
- 2016-05-11 CN CN201610312342.6A patent/CN107366750B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10274342A (en) * | 1997-03-31 | 1998-10-13 | Chiyoda Kucho Kiki Kk | Valve device |
| CN201121714Y (en) * | 2007-12-05 | 2008-09-24 | 李伟军 | Break valve for refrigerating system |
| CN203627813U (en) * | 2013-10-14 | 2014-06-04 | 浙江盾安禾田金属有限公司 | Stop valve for air conditioner |
| CN104832655A (en) * | 2014-02-12 | 2015-08-12 | 浙江盾安禾田金属有限公司 | Stop valve for air conditioner |
| CN204437291U (en) * | 2015-01-11 | 2015-07-01 | 赵德鸿 | Stop valve |
| CN105065693A (en) * | 2015-07-14 | 2015-11-18 | Tcl空调器(中山)有限公司 | Stop valve and air conditioner |
| CN107178621A (en) * | 2016-03-11 | 2017-09-19 | 浙江三花智能控制股份有限公司 | A kind of refrigeration system stop valve and its valve rod |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533760A (en) * | 2018-05-29 | 2018-09-14 | 芜湖三花自控元器件有限公司 | A kind of novel cutoff valve sealing structure |
| CN111336298A (en) * | 2018-12-19 | 2020-06-26 | 浙江三花智能控制股份有限公司 | Valve device and pipeline connecting structure |
| CN111336298B (en) * | 2018-12-19 | 2024-01-19 | 浙江三花智能控制股份有限公司 | Valve device and pipeline connection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107366750B (en) | 2020-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016119553A1 (en) | Shut-off valve | |
| US2213680A (en) | Valve for well point systems | |
| WO2020015350A1 (en) | Charging valve, air conditioning system and electric vehicle | |
| CN107631050B (en) | A kind of valve | |
| CN107366750A (en) | A kind of refrigeration system stop valve | |
| CN106030175A (en) | Multipurpose flow control arrangement | |
| CN101858440B (en) | Two-way electromagnetic valve | |
| CN203230882U (en) | Air conditioner and stop valve therefor | |
| CN105546167A (en) | Combined valve with novel structure | |
| CN105299258A (en) | Through type female thread self-locking ball valve | |
| CN202118294U (en) | High-pressure hard seal ball valve | |
| JP2015169335A (en) | valve device | |
| CN104110510A (en) | Stop valve and air conditioner with same | |
| CN205260898U (en) | Through -type internal thread is from locking -type ball valve | |
| CN104565458A (en) | Spherical non-rising-stem stop check valve | |
| CN107178621B (en) | Stop valve for refrigerating system and valve rod thereof | |
| CN204361027U (en) | For the hydraulic electromagnetic changement of primary cut-out hydraulic spring grease cup powder operation device | |
| CN206572115U (en) | A kind of seal assembly | |
| CN102466056A (en) | Ball valve | |
| CN206904321U (en) | A kind of safety valve | |
| CN202790875U (en) | High-tightness gate valve | |
| CN107620801A (en) | Stop valve | |
| CN207584069U (en) | Valve | |
| CN111015595A (en) | Valve core opening device | |
| CN204387426U (en) | Pessimistic securit valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |