CN109424816A - Shut-off valve - Google Patents
Shut-off valve Download PDFInfo
- Publication number
- CN109424816A CN109424816A CN201710766016.7A CN201710766016A CN109424816A CN 109424816 A CN109424816 A CN 109424816A CN 201710766016 A CN201710766016 A CN 201710766016A CN 109424816 A CN109424816 A CN 109424816A
- Authority
- CN
- China
- Prior art keywords
- hole section
- connecting tube
- shut
- nut
- valve
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K1/02—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 with screw-spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
Abstract
The invention discloses a kind of shut-off valve, including valve body and connecting tube, the connecting tube and a circulation interface portion of the valve body are detachably connected；It further include that be successively sheathed on the holding down assembly of the connecting tube, seal member and elastic pressing ring, the elasticity pressing ring and the connecting tube relatively fixed；Described to hold down assembly including compressed part and admittedly embedded in the plastic sheath of the compressed part, the plastic sheath is set between the compressed part and the connecting tube, to prevent the compressed part from contacting with the connecting tube；The recirculation hole of the circulation interface portion has the sealing surface that can be bonded with the elastic pressing ring；Described hold down assembly can be detachably affixed with the circulation interface portion, and is configured to the two in affixed state, and described hold down assembly compresses the seal member, so that the elastic pressing ring is pressed in the sealing surface by the seal member.The shut-off valve can reduce the probability of galvano-cautery, improve product reliability and safety.
Description
Technical field
The present invention relates to valve components technical fields, more particularly to a kind of shut-off valve.
Background technique
Split type air adjustment equipment is divided into indoor unit and outdoor unit, is connected between two machines by refrigerant line, in pipeline
Shut-off valve is usually used in connection, under normal circumstances, shut-off valve is mounted on outdoor unit, and one end inlet tube is directly welded with shut-off valve
It connects, and other end outlet then uses Active Interface, convenient for being installed with indoor unit.
The outlet end of shut-off valve and the connection type that nut is mostly used as the connecting tube of Active Interface, in general, connecting tube
The sealing surface being bonded can be sealed against each other by being equipped with shut-off valve outlet end, and nut overcoat is on the outside of connecting tube, shut-off valve outlet end
With the external thread structure cooperated with nut, by nut tightening in the outlet end of shut-off valve, make two by the power of tightening nut
Sealing surface compact forms sealing.
In existing structure, valve body, the nut of shut-off valve are all made of brass material, in order to cut guarantee processing performance, and
Connecting tube mostly uses aluminium material, to save cost, in this way, shut-off valve holds from the connecting portion of connecting tube because the two material is different
It is also easy to produce galvano-cautery, influences the normal use of air-conditioning.
Therefore, how shut-off valve is improved, is that those skilled in the art are current to reduce the probability that shut-off valve generates galvano-cautery
The technical issues that need to address.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of shut-off valve, including valve body and connecting tube, the connecting tube with
One circulation interface portion of the valve body is detachably connected；It further include successively being sheathed on holding down assembly, sealing for the connecting tube
Component and elastic pressing ring, the elasticity pressing ring and the connecting tube are relatively fixed；
Described to hold down assembly including compressed part and admittedly embedded in the plastic sheath of the compressed part, the plastic sheath is set to the pressure
Between tight portion and the connecting tube, to prevent the compressed part from contacting with the connecting tube；
The recirculation hole of the circulation interface portion has the sealing surface that can be bonded with the elastic pressing ring；
Described hold down assembly can be detachably affixed with the circulation interface portion, and is configured to the two and is in affixed state,
Described hold down assembly compresses the seal member, so that the elastic pressing ring is pressed in the sealing surface by the seal member.
The Detachable connection structure of shut-off valve provided by the invention, the interface portion that circulates and connecting tube is the successively company of being sheathed on
The holding down assembly of adapter tube, seal member and elastic pressing ring, elastic pressing ring and connecting tube are relatively fixed, and connecting tube protrudes into circulation interface
Behind portion, seal member is compressed by holding down assembly, and be bonded seal member elastic pressing ring and shape with circulation interface portion compression
At sealing, to realize the connection of shut-off valve and connecting tube, and the sealing performance of the two junction is ensured；Wherein, compression group
Part includes compressed part and solid embedding plastic sheath in the inner, holds down assembly and is sheathed on connecting tube by plastic sheath, that is to say, that passes through
The isolation of plastic sheath, compressed part and connecting tube be in contactless state, are designed in this way, can evade in background technique because of compressed part and
Connecting tube be two kinds of metal materials and caused by potential difference, reduce between compressed part and connecting tube generate galvano-cautery probability,
Improve the reliability and safety that shut-off valve uses.
The compressed part is tool internal thread nut, and the circulation interface portion has the outer spiral shell matched with the nut
Line.
The nut has through-hole, and the through-hole includes tool internal thread major diameter hole section and path hole section；The plastics
Set includes set ontology and the flexible clamping portion axially extending from set ontology side, and the end of the clamping portion has
The buckle radially stretched out；The other side of the set ontology formed compress the seal member compress end；
The path hole section has step surface outwardly；The internal diameter of the path hole section on the outside of the step surface is big
In the outer diameter of the connecting tube；The plastic sheath is plugged in the state of the nut, and the buckle is abutted with the step surface,
The set ontology is abutted with the cascaded surface inwardly of the major diameter hole section and path hole section junction, to limit the plastics
The relative axial position of set and the nut；
Alternatively, the plastic sheath is plugged in the state of the nut, the clamping portion passes through the path hole section, described
Buckle is abutted with the end face of the nut, the set ontology and the major diameter hole section and path hole section junction inwardly
Cascaded surface abuts, to limit the relative axial position of the plastic sheath Yu the nut.
The clamping portion is multiple, and being arranged circumferentially along the set ontology.
The buckle has guiding surface, so that the path hole section is inserted into the clamping portion.
The recirculation hole includes sequentially connected first straight hole section, taper hole section and the second straight hole section from inside to outside, the cone
The bigger diameter end of hole section is located at outside, the step end face of the junction formation of the taper hole section and the second straight hole section outwardly；Institute
The inner wall and the step end face for stating taper hole section form the sealing surface；
It is described elasticity pressing ring include tapered portion be adapted to the taper hole section and along the tapered portion bigger diameter end radially to
The compression end extended to form outside；The miner diameter end of the tapered portion and the connecting tube are interference fitted；
The internal diameter of the first straight hole section is greater than the outer diameter of the connecting tube.
The miner diameter end of the tapered portion offers several opening compression ends for axially extending and being evenly distributed
Portion offers several and radially extends and axially extend to the opening of the tapered portion；The opening also edge for compressing end
It is circumferential uniformly distributed.
The connecting tube and the circulation interface portion are in connection status, and the inner face of the connecting tube connects with the circulation
Oral area is non-contact.
The seal member includes sealing ring, and the sealing ring and recirculation hole sealing cooperate.
The seal member further includes the washer set on the sealing ring one or both sides.
Detailed description of the invention
Fig. 1 is a kind of diagrammatic cross-section of specific embodiment of shut-off valve provided by the present invention；
Fig. 2 is the partial enlarged view at the position A in Fig. 1；
Fig. 3 is the diagrammatic cross-section of shut-off valve in specific embodiment to hold down assembly with circulation interface portion when not connected；
Fig. 4 is that figure is put in the part at the position B in Fig. 3；
Fig. 5 is the diagrammatic cross-section of the valve body of shut-off valve in Fig. 1；
Fig. 6 is the structural schematic diagram that the connecting tube of flexible pressing ring is assembled in Fig. 1；
Fig. 7 is a kind of structural schematic diagram of angle of elastic pressing ring in Fig. 6；
Fig. 8 is the structural schematic diagram of another angle of elastic pressing ring in Fig. 6；
Fig. 9 is the diagrammatic cross-section to hold down assembly in Fig. 1；
Figure 10 is the structural schematic diagram of nut in Fig. 9；
Figure 11 is the diagrammatic cross-section of nut shown in Figure 10；
Figure 12 is the structural schematic diagram of plastic sheath in Fig. 9；
Figure 13 is the side view of plastic sheath shown in Figure 12.
Wherein, one-to-one relationship of the Fig. 1 into Figure 13 between component names and appended drawing reference is as follows:
Valve body 10, it is first-class to connect oral area 11, recirculation hole 111, the first straight hole section 1111, taper hole section 1112, the second straight hole
Section 1113, step end face 1114, second connects oral area 12；
Valve rod 20, connecting tube 30；
Hold down assembly 40, nut 41, major diameter hole section 411, path hole section 412, annular groove 4121, step surface 4122, plastics
Set 42 covers ontology 421, clamping portion 422, buckle 4221；
Seal member 50, sealing ring 51, washer 52；
Elastic pressing ring 60, tapered portion 61 compress end 62, and be open 63a, 63b.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Please refer to figs. 1 to 4, and Fig. 1 is a kind of diagrammatic cross-section of specific embodiment of shut-off valve provided by the present invention；Fig. 2
For the partial enlarged view at the position A in Fig. 1；Fig. 3 is that holding down assembly for shut-off valve is not connected with circulation interface portion in specific embodiment
When diagrammatic cross-section；Fig. 4 is that figure is put in the part at the position B in Fig. 3.
In the embodiment, shut-off valve includes valve body 10, and valve body 10 has valve chamber, and left end connects oral area equipped with first-class
11, lower end is equipped with second and connects oral area 12, wherein and the first-class communication port 111 for connecting oral area 11 is connected to valve chamber, and second
Circulation interface portion 12 is connected to valve port.
Valve rod 20 is additionally provided in valve body 10, in general, valve rod 20 is threadedly coupled with valve body 10, when rotation valve rod 20, in screw thread
Under the action of pair, valve rod 20 can move up and down along valve chamber axis, to block or open valve port, to make first-class to connect oral area
11, which connect oral area 12 with second, disconnects or is connected to.
When the shut-off valve is applied to air-conditioning system, it is usually mounted to outdoor unit, when conventional design, second connects oral area 12
Be welded and fixed with external runner pipe, and the first-class oral area 11 that connects is detachably connected with external connecting tube 30, in order to room
Interior machine installation, present invention is generally directed to the first-class Detachable connection structures for connecting oral area 11 and connecting tube 30 to make improvement.
It is appreciated that when practical application, it, can if second connects oral area 12 and is also required to be detachably connected with external runner pipe
To use similar structure.
Hold down assembly 40, seal member 50 and elastic pressing ring 60 are successively arranged in the embodiment, in connecting tube 30,
In, elastic pressing ring 60 and connecting tube 30 are relatively fixed.
40 are held down assembly including compressed part and admittedly in the plastic sheath 42 of compressed part, the program, compressed part is specially to have
Internal thread nut 41, plastic sheath 42 is set between nut 41 and connecting tube 30, to prevent nut 41 from connecting with connecting tube 30
Touching.That is, nut 41 is sheathed on connecting tube 30 by plastic sheath 42.
The first-class recirculation hole 111 for connecting oral area 11 has the sealing surface that can be bonded with elastic pressing ring 60.
The first-class oral area 11 that connects is equipped with the external screw thread matched with the internal screw thread of nut 41, nut 41 and the first circulation
The mode that interface portion 11 is connected through a screw thread is detachably connected.
When assembly, as shown in Figure 3 and Figure 4, nut 41, seal member 50 and the elasticity of plastic sheath 42 first will can be successively had
60 sets of pressing ring are inserted into the first-class recirculation hole 111 for connecting oral area 11 in connecting tube 30, then by connecting tube 30, later by nut
41 screw with the first-class oral area 11 that connects, nut 41 and it is first-class connect after oral area 11 screws, that is, nut 41 and first
Circulation interface portion 11 is under affixed state, and holding down assembly 40 compresses seal member 50, makes seal member 50 by elastic pressing ring 60
It is pressed on the first-class sealing surface for connecting oral area 11, as shown in Figures 1 and 2, because elastic pressing ring 60 has elasticity, is sealing
Compressive deformation under the extruding of component 60 and the sealing surface for connecting oral area 11 with first-class is formed and is sealed, thus realize connecting tube 30 with
The sealing of valve body 10 cooperates, such to be sealed into soft seal form, concrete operations not high to the requirement on machining accuracy of each components
It is convenient, high sealing reliability.
In the program, admittedly the plastic sheath 42 in nut 41 is the specific structure for compressing seal member 60.
As above, nut 41 is in contactless state with connecting tube 30, can be advised in this way by the isolation of embedded plastic sheath 42
Potential difference caused by keeping away in background technique due to nut 41 and connecting tube 30 are made of different metal materials, can reduce nut
The probability that galvano-cautery is generated between 41 and connecting tube 30 improves reliability and safety that shut-off valve uses.
It is the diagrammatic cross-section of the valve body of shut-off valve in Fig. 1 please also refer to Fig. 5 to Fig. 8, Fig. 5；Fig. 6 is to assemble in Fig. 1
The structural schematic diagram of the connecting tube of flexible pressing ring；Fig. 7 is a kind of structural schematic diagram of angle of elastic pressing ring in Fig. 6；Fig. 8 is figure
The structural schematic diagram of another angle of elastic pressing ring in 6.
In the embodiment, the first-class recirculation hole 111 for connecting oral area 11 includes sequentially connected first straight hole from inside to outside
Section 1111, taper hole section 1112 and the second straight hole section 1113, wherein the bigger diameter end of taper hole section 1112 is located at outside, that is to say, that cone
Hole section 1112 is from the first straight hole section 1111 to the direction flaring of the second straight hole section 1113；In taper hole section 1112 and the second straight hole section
1113 junction is formed with step end face 1114 outwardly.
It should be pointed out that here inside and outside be opposite valve body 10 valve chamber for, specifically, be close to valve chamber it is interior, far
Be from valve chamber it is outer, it is convenient and be easy to understand which is intended merely to statement, protection scope should not be construed as limiting, hereafter with this
It is similar, it repeats no more.
In the embodiment, elastic pressing ring 60 includes the tapered portion 61 being adapted to taper hole section 1112 and the major diameter along tapered portion 61
Hold the compression end 62 to be formed that extends radially outwardly, wherein the miner diameter end and connecting tube 30 of tapered portion 61 are interference fitted, to realize
The two it is relatively fixed.
After assembly, the tapered portion 61 of elastic pressing ring 60 is bonded with taper hole section 1112, compresses end 62 and step end face 1114
Fitting realizes elastic pressing ring 60 and the first-class axially position for connecting oral area 11, it will be understood that so set, first-class connect
The inner wall and step end face 1114 of the taper hole section 1112 of oral area 11 form the sealing surface cooperated with elastic pressing ring 60.
Wherein, the internal diameter of the first straight hole section 1111 is greater than the outer diameter of connecting tube 30, in this way, first circulation of the insertion of connecting tube 30
After the recirculation hole 111 of interface portion 11, there is circumferential gap between the end and the first straight hole section 1111 of insertion, can avoid connection
Pipe 30 is contacted with valve body 10, has been evaded in background technique and having been caused due to connecting tube 30 and valve body 10 are made of different metal materials
Potential difference, reduce the probability that galvano-cautery is generated between connecting tube 30 and valve body 10, further increase shut-off valve use it is reliable
Property and safety.
With reference to Fig. 4, when actual setting, if the position that the first straight hole section 1111 of recirculation hole 111 is connected to valve chamber is also formed
There is step outwardly, it, can be by limiting the relative axial position of elastic pressing ring 60 and connecting tube 30, so that assembling in assembly
Afterwards, the inner face of connecting tube 30 is not contacted with valve body 10, is further decreased and is generated galvano-cautery between connecting tube 30 and valve body 10
Probability.
In specific scheme, as shown in Figure 7 and Figure 8, offered in the miner diameter end of the tapered portion 61 of elastic pressing ring 60 several
A opening 63a for axially extending and being evenly distributed offers several in compression end 62 and radially extends and along axial direction
Extend to the opening 63b of tapered portion 61, wherein the opening 63b for compressing end 62 is also evenly distributed.
Be designed in this way so that the nose end of the tapered portion 61 of elastic pressing ring 60 has the function of flexible deformation, with connecting tube 30
After interference fit, it can prevent connecting tube 30 from moving axially, preferably the relative axial position of both limitations.
Specifically, the specific number and development length of opening 63a and opening 63b can design as needed.
Please also refer to Fig. 9 to Figure 13, Fig. 9 is the diagrammatic cross-section to hold down assembly in Fig. 1；Figure 10 is nut in Fig. 9
Structural schematic diagram；Figure 11 is the diagrammatic cross-section of nut shown in Figure 10；Figure 12 is the structural schematic diagram of plastic sheath in Fig. 9；Figure 13
For the side view of plastic sheath shown in Figure 12.
In the embodiment, hold down assembly 40 nut 41 have through-hole, the through-hole include tool internal thread major diameter hole section
411 and path hole section 412, it is clear that tool internal thread major diameter hole section 411 is threadedly coupled with the first-class oral area 11 that connects.
Hold down assembly 40 plastic sheath 42 include set ontology 421 and from set 421 side of ontology it is axially extending have elasticity
Clamping portion 422, the end of clamping portion 422 has a buckle 4221 radially stretched out, when assembly, the clamping of plastic sheath 42
Portion 422 is inserted into the path hole section 412 of nut 41, and set ontology 421 is located in major diameter hole section 411, to compress seal member 50.
Specifically, it is equipped with step surface 4122 outwardly in path hole section 412, in illustrated scheme, shape in path hole section 412
At there is annular groove 4122, the inner face of the annular groove 4122 is step surface 4122, after plastic sheath 42 and nut 41 assemble, plastics
Path hole section 412 is protruded into the clamping portion 422 of set 42, and the buckle 4221 of clamping portion 422 is abutted with step surface 4122, covers ontology 421
It is abutted with the cascaded surface inwardly of 412 junction of major diameter hole section 411 and path hole section, in this way, by plastic sheath 42 and nut 41
Axial position is relatively fixed.
Because the clamping portion 422 of plastic sheath 42 has elasticity, when assembly, radially-inwardly compress clamping portion 422 by external force,
Clamping portion 422 is set to protrude into diameter holes 412, after external force disappears, clamping portion 422 is restored resilient radial and is flared out, and makes buckle 4221
It is abutted with step surface 4122.
Illustrated scheme is above structure, with reference to Fig. 1 and Fig. 9, because the clamping portion 422 of plastic sheath 42 is fastened in nut
The inside of 41 path hole section 412, that is to say, that the outer end of nut 41, that is, part and the connection being located at outside buckle 4221
There is no barriers between pipe 30, therefore, specifically when setting, make the path hole section 412 for being located at 4122 outside of step surface of nut 41
Internal diameter be greater than the outer diameter of connecting tube 30, after assembling in this way, between connecting tube 30 and the outer end of nut 41 between formation circumferential direction
Gap can avoid the two contact.
In fact, when specific setting, the assembly method of plastic sheath 42 and nut 41 be not limited to it is above-mentioned, such as it is above-mentioned substantially
On the basis of structure, make the longer design in clamping portion 422 of plastic sheath 42, in assembly, so that clamping portion 422 passes through path hole section
After 412, buckle 4221 is abutted with the end face of nut 41, cover ontology 421 still with 412 junction of major diameter hole section 411 and path hole section
Cascaded surface inwardly abut.
In specific scheme, plastic sheath 42 is equipped with multiple clamping portions 422, and each clamping portion 422 is along the circumferential equal of set ontology 421
Even arrangement.
In specific scheme, the buckle 4221 of clamping portion 422 has guiding surface, in order to which path is inserted into clamping portion 422
In hole section 412.
It should be appreciated that the connection of plastic sheath 42 and nut 41 can not also be by the way of above-mentioned clamping, the two is directlyed adopt
The mode of interference fit is also feasible.
It is above-mentioned describe in detail hold down assembly 40 compressed part be have internal thread nut 41 structure, it will be understood that
When actual setting, compressed part can also for externally threaded nut, in this way, after design, nut screw in it is first-class connects oral area 11,
The inner face of nut can be made directly against seal member 50, certainly, plastic sheath is still set between nut and connecting tube 30, to prevent
Only the two contact.
In specific scheme, seal member 50 includes sealing ring 51, and sealing ring 51 can be sealed with recirculation hole 111 to be cooperated, figure
Show in scheme, sealing ring 51 specifically cooperates with the second straight pipe 1113, to further increase between valve body 10 and connecting tube 30
Leakproofness.
More specifically, the one or both sides of sealing ring 51 are equipped with washer 52, to prevent in extrusion process to sealing ring 51
It causes to damage.
Shut-off valve provided by the present invention is described in detail above.Specific case used herein is to the present invention
Principle and embodiment be expounded, method and its core of the invention that the above embodiments are only used to help understand
Thought is thought.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention,
Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection scope of the claims in the present invention
It is interior.
Claims (10)
1. shut-off valve, including valve body (10) and connecting tube (30), a circulation of the connecting tube (30) and the valve body (10)
Interface portion is detachably connected；It is characterized in that, further including successively being sheathed on holding down assembly (40), sealing for the connecting tube (30)
Component (50) and elastic pressing ring (60), the elasticity pressing ring (60) and the connecting tube (30) are relatively fixed；
Hold down assembly (40) include compressed part and are embedded in the plastic sheath (42) of the compressed part admittedly, and the plastic sheath (42) sets
Between the compressed part and the connecting tube (30), to prevent the compressed part from contacting with the connecting tube (30)；
The recirculation hole (111) of the circulation interface portion has the sealing surface that can be bonded with the elastic pressing ring (60)；
Hold down assembly (40) can be detachably affixed with the circulation interface portion, and is configured to the two and is in affixed state,
Hold down assembly (40) compress the seal member (50), so that the seal member (50) presses the elastic pressing ring (60)
Tightly in the sealing surface.
2. shut-off valve according to claim 1, which is characterized in that the compressed part is tool internal thread nut (41),
The circulation interface portion has the external screw thread matched with the nut (41).
3. shut-off valve according to claim 2, which is characterized in that the nut (41) has through-hole, and the through-hole includes
Have internal thread major diameter hole section (411) and path hole section (412)；The plastic sheath (42) includes set ontology (421) and from institute
The axially extending flexible clamping portion (422) in set ontology (421) side is stated, the end of the clamping portion (422) has edge
The buckle (4221) extended radially out；The other side of the set ontology (421) forms the pressure for compressing the seal member (50)
To end；
The path hole section (412) has step surface (4122) outwardly；It is described small on the outside of the step surface (4122)
The internal diameter of diameter hole section (412) is greater than the outer diameter of the connecting tube (30)；The plastic sheath (42) is plugged in the nut (41)
Under state, the buckle (4221) abuts with the step surface (4122), the set ontology (421) and the major diameter hole section
(411) it is abutted with the cascaded surface inwardly of the path hole section (412) junction, to limit the plastic sheath (42) and the spiral shell
The relative axial position of female (41)；
Alternatively, the plastic sheath (42) is plugged in the state of the nut (41), the clamping portion (422) passes through the path
Hole section (412), the buckle (4221) abut with the end face of the nut (41), the set ontology (421) and the large diameter hole
Section (411) and the path hole section (412) junction inwardly cascaded surface abutting, with limit the plastic sheath (42) with it is described
The relative axial position of nut (41).
4. shut-off valve according to claim 3, which is characterized in that the clamping portion (422) is multiple, and along the set sheet
Body (421) are arranged circumferentially.
5. shut-off valve according to claim 3, which is characterized in that the buckle (4221) has guiding surface, with toilet
It states clamping portion (422) and is inserted into the path hole section (412).
6. shut-off valve according to claim 1-5, which is characterized in that the recirculation hole (111) includes from introversive
Outer sequentially connected first straight hole section (1111), taper hole section (1112) and the second straight hole section (1113), the taper hole section (1112)
Bigger diameter end be located at outside, the junction of the taper hole section (1112) and the second straight hole section (1113) forms step outwardly
End face (1114)；The inner wall and the step end face (1114) of the taper hole section (1112) form the sealing surface；
The elasticity pressing ring (60) includes the tapered portion (61) being adapted to the taper hole section (1112) and along the tapered portion (61)
Bigger diameter end extend radially outwardly the compression end (62) to be formed；The miner diameter end of the tapered portion (61) and the connecting tube (30)
Interference fit；
The internal diameter of the first straight hole section (1111) is greater than the outer diameter of the connecting tube (30).
7. shut-off valve according to claim 6, which is characterized in that the miner diameter end of the tapered portion (61) offers several
The opening (63a) for axially extending and being evenly distributed, the compression end (62) offer several and radially extend and edge
Axially extend to the opening (63b) of the tapered portion (61)；The opening (63b) for compressing end (62) is also evenly distributed.
8. shut-off valve according to claim 6, which is characterized in that the connecting tube (30) is in the circulation interface portion
Connection status, the inner face of the connecting tube (30) and the circulation interface portion are non-contact.
9. shut-off valve according to claim 1-5, which is characterized in that the seal member (50) includes sealing ring
(51), the sealing ring (51) and the recirculation hole (111) sealing cooperate.
10. shut-off valve according to claim 9, which is characterized in that the seal member (50) further includes set on described close
The washer (52) of seal (51) one or both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766016.7A CN109424816A (en) | 2017-08-30 | 2017-08-30 | Shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766016.7A CN109424816A (en) | 2017-08-30 | 2017-08-30 | Shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109424816A true CN109424816A (en) | 2019-03-05 |
Family
ID=65504236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710766016.7A Pending CN109424816A (en) | 2017-08-30 | 2017-08-30 | Shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109424816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178836A (en) * | 2021-04-20 | 2021-07-27 | 海洋王照明科技股份有限公司 | Cable sealing joint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2403949Y (en) * | 2000-01-11 | 2000-11-01 | 新昌县制冷部件厂 | Stop valve for separating air conditioner |
| CN201246542Y (en) * | 2008-09-03 | 2009-05-27 | 江苏省华扬太阳能有限公司 | Interface capable of preventing water tank electrochemical corrosion |
| CN102338252A (en) * | 2010-07-19 | 2012-02-01 | 张积储 | Integral insulation flange pipe |
| KR101239406B1 (en) * | 2012-10-18 | 2013-03-05 | 주식회사 우정메카트로닉스 | Adapter for refrigerants line of air conditioner and refrigerants line connection method thereof |
| CN202769076U (en) * | 2012-03-31 | 2013-03-06 | 江苏翠波新能源发展有限公司 | Sealing device for pipeline of heat exchanger for water tank of water heater |
| CN103574193A (en) * | 2012-08-10 | 2014-02-12 | 浙江三花股份有限公司 | Stop valve for air conditioner |
-
2017
- 2017-08-30 CN CN201710766016.7A patent/CN109424816A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2403949Y (en) * | 2000-01-11 | 2000-11-01 | 新昌县制冷部件厂 | Stop valve for separating air conditioner |
| CN201246542Y (en) * | 2008-09-03 | 2009-05-27 | 江苏省华扬太阳能有限公司 | Interface capable of preventing water tank electrochemical corrosion |
| CN102338252A (en) * | 2010-07-19 | 2012-02-01 | 张积储 | Integral insulation flange pipe |
| CN202769076U (en) * | 2012-03-31 | 2013-03-06 | 江苏翠波新能源发展有限公司 | Sealing device for pipeline of heat exchanger for water tank of water heater |
| CN103574193A (en) * | 2012-08-10 | 2014-02-12 | 浙江三花股份有限公司 | Stop valve for air conditioner |
| KR101239406B1 (en) * | 2012-10-18 | 2013-03-05 | 주식회사 우정메카트로닉스 | Adapter for refrigerants line of air conditioner and refrigerants line connection method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178836A (en) * | 2021-04-20 | 2021-07-27 | 海洋王照明科技股份有限公司 | Cable sealing joint |
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