CN105422948B - The valve body of plastic cut-off valve of injection molding - Google Patents
The valve body of plastic cut-off valve of injection molding Download PDFInfo
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- CN105422948B CN105422948B CN201510622278.7A CN201510622278A CN105422948B CN 105422948 B CN105422948 B CN 105422948B CN 201510622278 A CN201510622278 A CN 201510622278A CN 105422948 B CN105422948 B CN 105422948B
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- valve
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- injection molding
- core
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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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
- F16K1/32—Details
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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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The valve body of plastic cut-off valve of injection molding, with flow inlet, outflow port, valve deck connector and valve seat, valve seat is open with valve seat, have between flow inlet and valve seat opening by the cavity formed from flow inlet core pulling when injection molding serve as into runner, there is the body cavity served as by the cavity formed from valve deck connector core pulling when injection molding between valve seat and valve deck connector, wherein, have between the body cavity and outflow port and goes out runner by what the cavity formed from outflow port core pulling when injection molding and the cavity formed from the madial wall side core-pulling of body cavity outflow port side collectively acted as.Under the premise of being entirely capable of controlling and ensureing valve body total quality, economy easily fundamentally solves the problems, such as to enable valve body of plastic cut-off valve to reach as defined in country/international standard to be had sufficient latus rectum runner section this long-term fails satisfied solution the valve body of plastic cut-off valve of structure of the invention form.
Description
Technical field
The present invention relates to a kind of valve body of plastic cut-off valve structure of injection molding, being especially a kind of can realize has foot logical
Diameter runner section and the valve body of plastic cut-off valve structure of disposable whole injection molding.
Background technology
Plastic stop valve is the fluid switch structure for having had in many fields at present extensive application.In plastic stop valve
Valve body be usually through mold injection molding.In valve body into runner, go out runner and pass in and out and be open with valve seat between runner
Valve seat is off valve and realizes the necessary structure for carrying out switch control to fluid.The structure of entry/exit runner, is molded into valve body
The restriction of core pulling technique during type, there is the new problem different from conventional metals shut-off valve, one of main problem is exactly such as
What enables the fluid channel in plastic valve body to maintain enough channel cross-sections (namely sufficient latus rectum).In standard GB/T/T
28494 and international standard ISO 21787 also requires the latus rectum of plastic stop valve have relevant regulation.In plastic stop valve
In valve body, fluid entry/exit runner be all respectively with upper and lower relative mode and valve seat opening in communication, therefore valve seat be open both sides
The entry/exit runner position of connection is just at " bottleneck " for influencing flow channel cross-sections.Since the entry/exit runner of plastics valve body is general
It is the cavity composition formed by the core pulling technique in injection molding, and can not be as metal shut-off valve by using bending
The mode of structure channel is resolved, and existing many documents report solution increase plastics valve body entry/exit runner and ask respectively thus
The method of topic.
A kind of plastic stop valve disclosed in Chinese patent 01256569.5 is higher than influent stream using the axis of outflow port is made
The axis (namely " low in and high out ") of mouth.It is practised since the axis of outflow port violates common use higher than the axis of flow inlet
It is used, it is difficult to be received by market.
A kind of plastic stop valve disclosed in Chinese patent 01257017.6, using hot melt spigot-and-socket formula influent stream will be set to
Mouthful circular tube shaped runner lower half socket joint limit protrusion to the sum of central angle be less than 160 degree, and hot melt will be set to
The socket joint limit protrusion of the circular tube shaped runner upper half of spigot-and-socket outflow port to the sum of central angle be less than 160 degree of mode.
It makes moderate progress for the expansion of runner, but this improved effect very little, can not achieve the purpose that full-bore.
A kind of big flow plastic stop valve disclosed in Chinese patent 200420032638.5, it is proposed that make into circulation road
Axis is tilted from top to bottom from flow inlet to valve port direction, go out the central axes of circulation road then from valve port to outflow port direction on to
Under inclined scheme.Though its advantage is equally that can make moderate progress to the expansion of runner, this improvement very little can not reach complete
Latus rectum.
A kind of direct through type plastic stop valve disclosed in Chinese patent 03234620.4, is open using in body base,
And merged with the matching of the madial wall of the recessed opening portion of the body base by the peripheral side wall by back cover lid and be fixedly connected, it can
Referred to as a kind of mode of " patch installing ".The advantages of program is the chance by increasing a core pulling, to ensure the expansion of runner
Greatly, the problem of but bringing therewith is that the quality that is fixedly connected for being somebody's turn to do " patch " position cannot be guaranteed, and be difficult to examine discovery.
A kind of plastic stop valve disclosed in the document of Chinese Patent Application No. 200510060119.9, is that valve deck is made to connect
Mouthful and valve deck by therebetween can mutually matched bonding plane be mutually bonded.Its advantage is that a tube bundle extracting machine meeting is in a disguised form increased, from
And can realize the full-bore for expanding and ensureing runner, disadvantage is then：If valve deck is circular, sectional area is just too big, but
Valve deck is set to use abnormity if its section is reduced, then the bonding quality not only between valve deck connector cannot be guaranteed, Er Qiefa
Valve and valve seat opening are mutually matched to be not easy to ensure to neutrality.
A kind of valve body of plastic cut-off valve disclosed in Chinese patent 200820140498.1 equally uses and goes out stream in valve body
Runner bottom offers the core-drawing hole of " patch installing " formula communicated with outside valve body, finally by being fixedly installed in the core-drawing hole
Closeouts block the core-drawing hole.Therefore its feature, also is not easy to ensure with " patch installing " quality at closeouts position
For cost, increase the chance of a core pulling to ensure the size of runner.
Therefore, although to meet the sufficient latus rectum regulation of national standard and international standard, it is intended to expand plastics in various ways
The research and experiment of entry/exit runner latus rectum are carrying out always in checking-valve body, and constantly have new solution to propose and report,
But the problem fails to obtain always satisfied and essence solution for a long time, there is no method so far and meanwhile meet national standard with
There is enough latus rectums and enough intensity required by international standard, and the requirement of consumer's use habit can be met.How
Make valve body of plastic cut-off valve that there is enough section valve flowing channels in a manner of economical, convenient, is still to have problem to be solved.
Invention content
In consideration of it, the present invention proposes a kind of monolithic devices single injection-molded that the above problem can be made to obtain satisfied solution
Valve body of plastic cut-off valve.
The valve body of plastic cut-off valve of injection molding of the present invention equally has flow inlet, outflow port, valve deck connector and valve
Seat, valve seat are open with valve seat, have the sky by being formed from flow inlet core pulling when injection molding between flow inlet and valve seat opening
The cavity having into runner, between valve seat and valve deck connector by being formed from valve deck connector core pulling when injection molding that chamber serves as
On the basis of the body cavity served as, between the body cavity and outflow port have by when injection molding from outflow port core pulling shape
At cavity and from the madial wall side core-pulling of body cavity outflow port side formed cavity collectively act as go out runner.
By including above-mentioned document to expanding and protecting it can be seen from the continuously improving of plastic stop valve entry/exit runner
Demonstrate,prove into runner latus rectum comparatively be easy, and have some frame modes can effectively be resolved, but due to from go out stream
The core pulling in mouthful direction receives many restrictions, thus changes and expand runner latus rectum and then there is problem and obstacle always.This hair
Possessed body cavity in the bright valve body self structure by borrow, dexterously by the madial wall of its outflow port side with side core-pulling
Mode reaches the chance for increasing a core pulling, without that will obviously influence valve so that on valve body " windowing " and " patch installing " is this
Body intensity and the mode for certainly existing hidden danger of quality and risk, can not only realize by by increase core pulling be formed by cavity come
Expand the purpose for runner latus rectum, and the mode of the madial wall side core-pulling from body cavity outflow port side is to being formed
The height and/or width of cavity can be adjusted and control, to meet the needs to going out the change of runner latus rectum size.Test table
Bright, the present invention is above-mentioned to expand the mode for flow passage structure, there is affluence for full-bore goes out runner.
The present invention is above-mentioned do not influence or reduce into runner under the premise of expand and runner latus rectum on the basis of, further with
The corresponding measure expanded into runner is combined, and can satisfactorily realize the purpose of fluid channel full-bore in plastic stop valve.
The measure mentioned here expanded into runner, can include but is not limited to the mode having been had been reported in aforementioned documents.For example,
Can have in such a way that independent or any combination uses：
There can be lower concave part into runner below the valve seat；
The central axes into runner can be the angled straight lines from flow inlet to valve seat opening direction from top to bottom；
The flow inlet and the longitudinal center line of outflow port are located along the same line, etc..
In the valve body of plastic cut-off valve of above structure of the present invention, the concrete form of the flow inlet and outflow port, according to
Using need and purposes, can there are many selection, for example, its can be separately hot melt spigot-and-socket formula, it is screw connected or
The hatch frame of flange join type.
Valve deck connector described in valve body of plastic cut-off valve can also equally divide according to different using needs and purposes
Not Wei hot melt spigot-and-socket formula, with forms such as the hatch frames that ring flange or inner peripheral surface are threaded metal insert.
It is such as above-mentioned, stream due to having reached to expand in a manner of side core-pulling present invention employs the madial wall by outflow port side
The purpose of road latus rectum, body strength can be influenced and lead to matter that may be present by avoiding on valve body " windowing " and " patch installing "
Potential problem is measured, therefore only for expanding the purpose of fluid channel latus rectum, may be implemented that the valve body is made to become whole completely
The structure of body injection molding.
It is thus understood that the valve body of plastic cut-off valve of above structure of the present invention, by using from body cavity outflow port
The mode of the madial wall side core-pulling of side, realizing is not influencing or is sacrificing into runner, and without destroying integral molded plastic molding
Valve body structure under the premise of, effectively expand out the latus rectum of runner, solve plastic stop valve and realizing country/international mark
Standard should should be solved about plastic stop valve with enough latus rectum and valve body with the important technical obstacle in the requirements such as sufficient intensity
The people that determined thirst for solving always but fail the technical barrier to succeed always, and comply fully with the use habit of consumer.
Below in conjunction with the drawings and specific embodiments, the above of the present invention is described in further detail again.But
The range that this should not be interpreted as to the above-mentioned theme of the present invention is only limitted to example below.The above-mentioned technological thought of the present invention is not being departed from
In the case of, the various replacements or change made according to ordinary skill knowledge and customary means should all be included in the present invention
In the range of.
Description of the drawings
Fig. 1 is the cross-sectional view of the valve body of plastic cut-off valve of injection molding in embodiment 1.
Fig. 2 is the A of Fig. 1 to structural schematic diagram.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the outline structural diagram of the valve body of plastic cut-off valve of injection molding in embodiment 1.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is the cross-sectional view of the valve body of plastic cut-off valve of injection molding in embodiment 2.
Fig. 7 is the A of Fig. 6 to structural schematic diagram.
Fig. 8 is the vertical view of Fig. 6.
Fig. 9 is the outline structural diagram of the valve body of plastic cut-off valve of injection molding in embodiment 2.
Figure 10 is the A of Fig. 9 to structural schematic diagram.
Figure 11 is the vertical view of Fig. 9.
Figure 12 is the valve body of plastic cut-off valve of injection molding in embodiment 2 in injection molding, after die sinking, not yet core pulling
Status diagram, wherein including valve body of plastic cut-off valve and injection mold template and waiting for the injection mold core pulling of core pulling.
Figure 13 is the valve body of plastic cut-off valve of injection molding in embodiment 2 in injection molding, and injection mold is taken out after die sinking
Core status diagram.
Figure 14 is after the valve body of plastic cut-off valve of injection molding in embodiment 2 is removed together with inner side core-pulling from injection mold
Status diagram.
Figure 15 is the vertical view of Figure 14.
Figure 16 is the inner side core-pulling side core-pulling status diagram of the valve body of plastic cut-off valve of injection molding in embodiment 2.
Figure 17 is the vertical view of Figure 16.
After Figure 18 is the inner side core-pulling side core-pulling of the valve body of plastic cut-off valve of injection molding in embodiment 2, inside is taken out
Status diagram when core takes out from valve deck connector.
After the completion of Figure 19 is the valve body of plastic cut-off valve core pulling of injection molding in embodiment 2, the structure of processing to be cut is shown
It is intended to.
Figure 20 is that the valve seat opening of the valve body of plastic cut-off valve of injection molding in embodiment 2 passes through the structure after machining
The structural schematic diagram for passing through machining aftershaping with flow inlet and external pipe junction.
Figure 21 is the valve body of plastic cut-off valve of injection molding in embodiment 3 in injection molding, after die sinking, not yet core pulling
Status diagram, wherein including valve body of plastic cut-off valve and injection mold template and waiting for the injection mold core pulling of core pulling.
Figure 22 is the valve body of plastic cut-off valve of injection molding in embodiment 3 in injection molding, and injection mold is taken out after die sinking
Core status diagram, wherein the core pulling into runner is core pulling twice.
Figure 23 is the state signal after the valve body of plastic cut-off valve of injection molding in embodiment 3 is removed from injection mold
Figure, wherein being removed together into the second core pulling of runner together with valve body of plastic cut-off valve, inner side core-pulling is together with valve body of plastic cut-off valve one
With removing, inner side core-pulling is collectively constituted by the first inner side core-pulling, the second inner side core-pulling and third inner side core-pulling.
Figure 24 is the vertical view of Figure 23.
Figure 25 be in embodiment 3 valve body of plastic cut-off valve of injection molding into runner the second core pulling lifting status illustrate
Figure.
Figure 26 is that the valve body of plastic cut-off valve of injection molding into the second core pulling of runner detaches plastic stop valve in embodiment 3
The status diagram of valve body.
Figure 27 be in embodiment 3 valve body of plastic cut-off valve of injection molding into the second core pulling of runner complete core pulling state show
It is intended to.
Figure 28 is after completing core pulling into runner in embodiment 3, and the valve body of plastic cut-off valve of injection molding not yet completes inside
The structural schematic diagram of core pulling, the wherein inner side core-pulling are common by the first inner side core-pulling, the second inner side core-pulling and third inner side core-pulling
Composition.
Figure 29 is the vertical view of Figure 28.
Figure 30 is valve body of plastic cut-off valve the first inner side core-pulling side in inner side core-pulling three times of injection molding in embodiment 3
To core pulling status diagram.
Figure 31 is the vertical view of Figure 30.
After Figure 32 is the first inner side core-pulling side core-pulling of the valve body of plastic cut-off valve of injection molding in embodiment 3, by
Status diagram when one inner side core-pulling takes out from valve deck connector.
Figure 33 is the vertical view of Figure 32.
After the completion of Figure 34 is the first inner side core-pulling side core-pulling of the valve body of plastic cut-off valve of injection molding in embodiment 3,
Including waiting for the second inner side core-pulling and third inner side core-pulling structural schematic diagram of core pulling.
Figure 35 is the vertical view of Figure 34.
Figure 36 is valve body of plastic cut-off valve the second inner side core-pulling side in inner side core-pulling three times of injection molding in embodiment 3
To core pulling status diagram.
Figure 37 is the vertical view of Figure 36.
After Figure 38 is the second inner side core-pulling side core-pulling of the valve body of plastic cut-off valve of injection molding in embodiment 3, by
Status diagram when two inner side core-pullings take out from valve deck connector.
Figure 39 is the vertical view of Figure 38.
After the completion of Figure 40 is the second inner side core-pulling side core-pulling of the valve body of plastic cut-off valve of injection molding in embodiment 3,
Including waiting for the third inner side core-pulling structural schematic diagram of core pulling.
Figure 41 is the vertical view of Figure 40.
Figure 42 is the valve body of plastic cut-off valve third inner side core-pulling side in inner side core-pulling three times of injection molding in embodiment 3
To core pulling status diagram.
Figure 43 is the vertical view of Figure 42.
After Figure 44 is the third inner side core-pulling side core-pulling of the valve body of plastic cut-off valve of injection molding in embodiment 3, by
Status diagram when three inner side core-pullings take out from valve deck connector.
Figure 45 is the vertical view of Figure 44.
Figure 46 is the structure of processing to be cut in embodiment 3 after the completion of the core pulling of the valve body of plastic cut-off valve of injection molding
Schematic diagram.
Figure 47 is the vertical view of Figure 46.
Figure 48 is after the valve seat opening of the valve body of plastic cut-off valve of injection molding in embodiment 3 is molded by machining
Structure and flow inlet be molded by machining with external pipe junction after structural schematic diagram.
Figure 49 is the vertical view of Figure 48.
Figure 50 is the structural schematic diagram of the valve body of plastic cut-off valve of injection molding in embodiment 4.
Figure 51 is the structural schematic diagram of the plastics connection transition piece with valve deck connection inserting part in embodiment 5.
Figure 52 is that not yet hot melt adhesion has the plastics cut-off of the plastics connection transition piece of valve deck connection inserting part in embodiment 5
The structural schematic diagram of valve body.
Figure 53 is the structural schematic diagram of the valve body of plastic cut-off valve of injection molding in embodiment 5.
Figure 54 is the structural schematic diagram of the valve body of plastic cut-off valve of 6 injection molding of embodiment.
Figure 55 is the vertical view of Figure 54.
Specific implementation mode
Embodiment 1
As shown in fig. 1~fig. 5, the valve body of plastic cut-off valve 1 of injection molding described in the present embodiment is molded for integral molded plastic
There is structure flow inlet 2, outflow port 3, valve deck connector 4 and valve seat 5, valve seat 5 to have valve seat opening 6, flow inlet 2 and valve seat
Opening 6 between have by the cavity formed from 2 core pulling of flow inlet when injection molding serve as into runner 7, valve seat 5 is connected with valve deck
There is the body cavity 8 served as by the cavity formed from 4 core pulling of valve deck connector when injection molding, it is characterized in that institute between mouth 4
Stating between body cavity 8 and outflow port 3 has by the cavity 9 that is formed from 3 core pulling of outflow port when injection molding and from body cavity 8
What the cavity 10 that the madial wall side core-pulling of outflow port side is formed collectively acted as goes out runner 11.Flow inlet 2, outflow port 3 and valve deck
Connector 4 is all the hatch frame of hot melt spigot-and-socket formula respectively.Flow inlet 2 and the longitudinal center line of outflow port 3 are located at same straight line
On.
Embodiment 2
As shown in Fig. 6~Figure 11, the molding valve body of plastic cut-off valve of integral molded plastic is similar to Example 1 in the present embodiment,
Except that influent stream road in the present embodiment below valve seat has a lower concave part 16, and into the central axes of runner be by flow inlet
To valve seat opening direction from top to bottom inclined straight line.
As shown in Figure 12~20, the valve body of plastic cut-off valve 1 of the present embodiment is in injection molding, after die sinking, injection mold
Core pulling 12 and after core pulling 13 and core pulling 14 detach valve body of plastic cut-off valve 1, inner side core-pulling 15 remains in plastic stop valve
In valve body 1.At this moment, it needs together with inner side core-pulling 15 to take out the valve body of plastic cut-off valve 1 of injection molding from injection mold.So
Afterwards, by 15 side core-pulling of inner side core-pulling, inner side core-pulling 15 is allowed to be fully located in body cavity 8, then by inner side core-pulling 15 from valve body
The valve deck connector 4 at 8 top of inner cavity takes out.After completing above-mentioned action, the valve body of plastic cut-off valve 1 not yet valve seat be open 6,
By further machining by valve seat be open 6 machine-shapings；And flow inlet 2 is not yet molded with external pipe junction, is led to
Further machining is crossed by flow inlet 2 and the machine-shaping of external pipe junction.Ultimately form the plastics cut-off of the present embodiment
Valve body 1.
Embodiment 3
As shown in Figure 21~Figure 49, the valve body of plastic cut-off valve of injection molding described in the present embodiment is similar to Example 1,
Except that the influent stream road in the present embodiment below valve seat has lower concave part 16, formed into runner by core pulling twice, i.e., it is logical
It crosses into the first core pulling of runner 17 and distinguishes core pulling into the second core pulling of runner 18 and formed into runner.Madial wall in the present embodiment is lateral
Core pulling is completed by core pulling three times, i.e., is distinguished by the first inner side core-pulling 19, the second inner side core-pulling 20 and third inner side core-pulling 21
Madial wall side core-pulling is completed in core pulling.
The valve body of plastic cut-off valve 1 of injection molding described in the present embodiment is in injection molding, the core pulling 13 of injection mold
After detaching valve body of plastic cut-off valve 1 with core pulling 14 and into the first core pulling of runner 17, into runner the second core pulling 18, the first inner side core-pulling
19, the second inner side core-pulling 20 and third inner side core-pulling 21 remain in valve body of plastic cut-off valve 1.At this moment, it needs to be molded
Molding valve body of plastic cut-off valve 1 is together with into runner the second core pulling 18, the first inner side core-pulling 19, the second inner side core-pulling 20 and third
Inner side core-pulling 21 takes out from the injection mold on injection molding machine.
Then, then by the lower concave part 16 having into the second core pulling of runner 18 from influent stream road lift, borrow the first core pulling 17 and take out
The cavity formed after going out detaches valve body of plastic cut-off valve 1 from flow inlet by the second core pulling 18.
In addition, the madial wall side core-pulling completed in three times is：First by 19 side core-pulling of the first inner side core-pulling, and allow
One inner side core-pulling 19 is fully located in body cavity 8, then by the first inner side core-pulling 19 from the valve deck connector at the top of body cavity 8
4 take out；Then by 20 side core-pulling of the second inner side core-pulling, the second inner side core-pulling 20 is allowed to be fully located in body cavity 8, then by
Two inner side core-pullings 20 take out from the valve deck connector 4 at 8 top of body cavity；Finally by 21 side core-pulling of third inner side core-pulling, allow
Third inner side core-pulling 21 is fully located in body cavity 8, then third inner side core-pulling 21 is connected from the valve deck at 8 top of body cavity
Mouth 4 takes out.
After completing above-mentioned core pulling, the valve body of plastic cut-off valve 1 passes through further machining there are no valve seat opening 6
By valve seat 6 machine-shapings of opening；And flow inlet 2 is not yet molded with external pipe junction, will by further machining
Flow inlet 2 and the machine-shaping of external pipe junction, ultimately form the valve body of plastic cut-off valve 1 of the present embodiment.
Embodiment 4
As shown in figure 50, the valve body of plastic cut-off valve of injection molding described in the present embodiment is similar to Example 2, and institute is different
Be to be fixedly installed valve deck connection inserting part 22 at the valve deck connector 4 at the top of body cavity 8 in the present embodiment.The valve deck connects
Connect inserts 22 has the internal thread connected with valve deck by brass manufacture and endoporus.The valve deck connection inserting part 22 is the modeling of injection molding
Expect that stop valve body 1 in injection molding, is embedded in injection mold, after completing injection molding and core pulling, valve deck connection inserting part 22
It is just already fixed at the valve deck connector 4 at 8 top of body cavity.
Embodiment 5
As shown in Figure 51~Figure 53, the valve body of plastic cut-off valve of injection molding described in the present embodiment is similar to Example 4,
Except that the top of body cavity 8 has a valve deck transition connector 23 in the present embodiment, the valve deck transition connector 23 with
Plastics connection 24 hot melt adhesion of transition piece with valve deck connection inserting part 22 is integrated.
Embodiment 6
As shown in Figure 54~Figure 55, the valve body of plastic cut-off valve of injection molding described in the present embodiment is similar to Example 3,
Except that the valve deck connector 4 at 8 top of body cavity is the hatch frame of flange join type in the present embodiment.
Claims (7)
1. there is the valve body of plastic cut-off valve of injection molding flow inlet, outflow port, valve deck connector and valve seat, valve seat to have valve
Seat opening has the influent stream served as by the cavity formed from flow inlet core pulling when injection molding between flow inlet and valve seat opening
Road has between valve seat and valve deck connector in the valve body served as by the cavity formed from valve deck connector core pulling when injection molding
Chamber, it is characterized in that have between the body cavity and outflow port by the cavity that is formed from outflow port core pulling when injection molding and from
What the cavity that the madial wall side core-pulling of body cavity outflow port side is formed collectively acted as goes out runner.
2. valve body of plastic cut-off valve as described in claim 1, it is characterized in that the influent stream road below the valve seat has lower concave part.
3. valve body of plastic cut-off valve as described in claim 1, it is characterized in that the central axes into runner be from flow inlet to
The angled straight lines of valve seat opening direction from top to bottom.
4. valve body of plastic cut-off valve as described in claim 1, it is characterized in that the longitudinal center line of the flow inlet and outflow port
It is located along the same line.
5. valve body of plastic cut-off valve as described in claim 1, it is characterized in that the flow inlet and outflow port can be independently
Ground is hot melt spigot-and-socket formula, screw connected or flange join type hatch frame.
6. valve body of plastic cut-off valve as described in claim 1, it is characterized in that the valve deck connector is hot melt spigot-and-socket formula, band
There is the hatch frame of ring flange or inner peripheral surface for threaded metal insert.
7. the valve body of plastic cut-off valve as described in one of claim 1 to 6, it is characterized in that the valve body is molded for integral molded plastic
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622278.7A CN105422948B (en) | 2014-09-29 | 2015-09-28 | The valve body of plastic cut-off valve of injection molding |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410509081.8 | 2014-09-29 | ||
| CN201410509081.8A CN104235461A (en) | 2014-09-29 | 2014-09-29 | Injection molded plastic stop valve body |
| CN201510622278.7A CN105422948B (en) | 2014-09-29 | 2015-09-28 | The valve body of plastic cut-off valve of injection molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422948A CN105422948A (en) | 2016-03-23 |
| CN105422948B true CN105422948B (en) | 2018-07-13 |
Family
ID=52224100
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410509081.8A Withdrawn CN104235461A (en) | 2014-09-29 | 2014-09-29 | Injection molded plastic stop valve body |
| CN201520753081.2U Withdrawn - After Issue CN205190881U (en) | 2014-09-29 | 2015-09-28 | Injection molded plastic stop valve body |
| CN201510622249.0A Active CN105422947B (en) | 2014-09-29 | 2015-09-28 | The valve body of plastic cut-off valve and manufacturing method of injection molding |
| CN201510622278.7A Active CN105422948B (en) | 2014-09-29 | 2015-09-28 | The valve body of plastic cut-off valve of injection molding |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410509081.8A Withdrawn CN104235461A (en) | 2014-09-29 | 2014-09-29 | Injection molded plastic stop valve body |
| CN201520753081.2U Withdrawn - After Issue CN205190881U (en) | 2014-09-29 | 2015-09-28 | Injection molded plastic stop valve body |
| CN201510622249.0A Active CN105422947B (en) | 2014-09-29 | 2015-09-28 | The valve body of plastic cut-off valve and manufacturing method of injection molding |
Country Status (1)
| Country | Link |
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| CN (4) | CN104235461A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235461A (en) * | 2014-09-29 | 2014-12-24 | 罗荣森 | Injection molded plastic stop valve body |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4185807A (en) * | 1978-03-20 | 1980-01-29 | Fluoroware, Inc. | Plastic valve |
| CN2680939Y (en) * | 2004-01-19 | 2005-02-23 | 蔡志利 | Plastic stop valve for big flow |
| CN201173296Y (en) * | 2008-01-30 | 2008-12-31 | 魏贻锟 | Fluxoid plastic stop valve |
| CN201739516U (en) * | 2009-11-30 | 2011-02-09 | 黄银田 | Plastic pipeline stop valve |
| CN202220895U (en) * | 2011-09-26 | 2012-05-16 | 刘红 | Through type stop valve |
| CN205190881U (en) * | 2014-09-29 | 2016-04-27 | 罗荣森 | Injection molded plastic stop valve body |
-
2014
- 2014-09-29 CN CN201410509081.8A patent/CN104235461A/en not_active Withdrawn
-
2015
- 2015-09-28 CN CN201520753081.2U patent/CN205190881U/en not_active Withdrawn - After Issue
- 2015-09-28 CN CN201510622249.0A patent/CN105422947B/en active Active
- 2015-09-28 CN CN201510622278.7A patent/CN105422948B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4185807A (en) * | 1978-03-20 | 1980-01-29 | Fluoroware, Inc. | Plastic valve |
| CN2680939Y (en) * | 2004-01-19 | 2005-02-23 | 蔡志利 | Plastic stop valve for big flow |
| CN201173296Y (en) * | 2008-01-30 | 2008-12-31 | 魏贻锟 | Fluxoid plastic stop valve |
| CN201739516U (en) * | 2009-11-30 | 2011-02-09 | 黄银田 | Plastic pipeline stop valve |
| CN202220895U (en) * | 2011-09-26 | 2012-05-16 | 刘红 | Through type stop valve |
| CN205190881U (en) * | 2014-09-29 | 2016-04-27 | 罗荣森 | Injection molded plastic stop valve body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422947A (en) | 2016-03-23 |
| CN205190881U (en) | 2016-04-27 |
| CN104235461A (en) | 2014-12-24 |
| CN105422948A (en) | 2016-03-23 |
| CN105422947B (en) | 2018-07-13 |
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