CN105134988A - Stop valve with flow regulating function - Google Patents
Stop valve with flow regulating function Download PDFInfo
- Publication number
- CN105134988A CN105134988A CN201510472696.2A CN201510472696A CN105134988A CN 105134988 A CN105134988 A CN 105134988A CN 201510472696 A CN201510472696 A CN 201510472696A CN 105134988 A CN105134988 A CN 105134988A
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- Prior art keywords
- valve
- plate
- flow
- block water
- groove
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- 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.)
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
- F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
- F16K3/085—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a stop valve with the flow regulating function. The stop valve comprises a valve body, a valve seat, a valve element, a valve rod and an operation mechanism. The valve body comprises an inlet channel, an outlet channel and a valve cavity through which the inlet channel and the outlet channel are communicated. The valve seat is installed in the valve cavity and a water stop disc is arranged in a through cavity of the valve seat. The water stop disc comprises a first water stop sheet and a second water stop sheet which are matched with each other so that the through cavity of the valve seat is divided into a first flow channel and a second flow channel. A through hole is further formed in the water stop disc. The valve element comprises a mandrel, a first valve plate and a second valve plate. The mandrel is located in the through hole. A covering face of the first valve plate is matched with the circulation section of the first flow channel. A covering face of the second valve plate is matched with the circulation section of the second flow channel. One end of the valve rod is connected with the operation mechanism and the other end of the valve penetrates the through cavity of the valve seat to be fixedly connected with the mandrel. By the adoption of the stop valve, a rotary opening and closing cut-off manner is adopted for replacing a vertical cut-off manner in the prior art, and therefore the flow of a medium can be conveniently regulated.
Description
Technical field
The present invention relates to technology of instrument and meter field, particularly relate to a kind of stop valve carrying out Flow-rate adjustment.
Background technique
Stop valve, also pipe valve is, be use screw thread stop valve diagram one of the most a kind of valve, why very popular it is, be due in opening and closing process between sealing surface frictional force little, more durable, Lift is little, easy to manufacture, easy to maintenance, be not only applicable to mesolow, and be applicable to high pressure.
Stop valve opens and closes two states, for break-make medium; Because stop valve is cheap more a lot of in price than modulating valve, therefore when use occasion requires not to be very strict, people replace modulating valve with stop valve usually.But due to existing stop valve be all mostly straight up and down block mode, be difficult to the flow of control media.
Summary of the invention
Based on the technical problem that above-mentioned background technology exists, the present invention proposes a kind of stop valve carrying out Flow-rate adjustment, this stop valve adopt the mode of blocking of rotating folding to substitute in prior art straight up and down block mode, make it easy to regulate rate-of flow.
The present invention proposes a kind of stop valve carrying out Flow-rate adjustment, comprising: valve body, valve seat, spool, valve rod and the operating device for controlling valve rod, wherein:
Valve body comprises inlet passage, outlet passage and is communicated with the valve pocket of inlet passage and outlet passage;
Valve seat is arranged in valve pocket, and valve seat is cylindrical structure, is provided with water retaining disk in the cavity of valve seat;
Water retaining disk comprises the first block water plate and the second block water plate, and the first block water plate and the second block water plate side close to each other are interconnected, the first block water plate and the second block water plate mutually away from side be connected with the sidewall of valve seat respectively; First block water plate and the second block water plate cooperatively interact the first flow and the second runner that to be separated into by the cavity of valve seat and to be flowed to outlet passage for medium by inlet passage;
Water retaining disk is positioned at first gear water sheet and the second block water plate connecting part is also provided with through hole, and the hole heart of through hole is positioned on the shaft axis of valve seat;
Spool coordinates the break-make for controlling first flow and the second runner with valve seat, spool comprises stem stem, the first valve plate and the second valve plate;
Stem stem is positioned at through hole, and stem stem is provided with the attachment hole be connected with valve rod near one end of outlet passage;
First valve plate and the second valve plate are all positioned near the side of inlet passage on water retaining disk, and the first valve plate is connected with stem stem respectively with the side of the second valve plate, and the first valve plate and the second valve plate coordinate with valve seat motive sealing respectively away from the side of stem stem; The coverage rate of the first valve plate and the flow area of first flow match, the coverage rate of the second valve plate and the flow area of the second runner match, and when the first valve plate to coordinate with first flow first flow is blocked time, the second valve plate is in and coordinates and the position blocked it with the second runner;
One end of valve rod is connected with operating device and can be controlled to rotate by operating device, and the cavity that the other end of valve rod runs through valve seat is fixedly connected with stem stem.
Preferably, adjacent with the second runner with first flow on the first block water plate side is respectively equipped with the first sealing draw-in groove A and first and seals draw-in groove B; Side adjacent with the second runner with first flow on second block water plate is respectively equipped with the second sealing draw-in groove C and second and seals draw-in groove D, and the notch opening direction of the second sealing draw-in groove C, the second sealing draw-in groove D and first sealing draw-in groove A, the first sealing draw-in groove B is in same sense of rotation.
Preferably, the both sides of the first valve plate are respectively equipped with and seal draw-in groove B and second with first and seal the first snapin part B and the first snapin part C that draw-in groove C matches; The both sides of the second valve plate are respectively equipped with and seal draw-in groove A and second with first and seal the second snapin part A and the second snapin part D that draw-in groove D matches.
Preferably, valve seat is positioned at the first valve plate and the second valve plate and valve seat connecting part and is provided with the rotating seal component that can carry out rotary seal for the first valve plate and the second valve plate.
Preferably, the first block water plate and the second block water plate are radial symmetric structure.
Preferably, the first block water plate is sector structure.
Preferably, the first block water plate and the second block water plate are structure as a whole.
Preferably, the first block water plate and the second block water plate and valve seat are structure as a whole.
In the present invention, by arranging water retaining disk in the cavity of valve seat; And water retaining disk comprises the first block water plate and the second block water plate, the first block water plate and the second block water plate side close to each other are interconnected, the first block water plate and the second block water plate mutually away from side be connected with the sidewall of valve seat respectively; First block water plate and the second block water plate cooperatively interact and the cavity of valve seat are separated into first flow and the second runner; By spool being arranged to the structure coordinated with valve seat, namely spool comprises stem stem, the first valve plate and the second valve plate; Stem stem is positioned at through hole, and stem stem is provided with the attachment hole be connected with valve rod near one end of outlet passage; First valve plate and the second valve plate are all positioned near the side of inlet passage on water retaining disk, and the first valve plate is connected with stem stem respectively with the side of the second valve plate, and the first valve plate and the second valve plate coordinate with valve seat motive sealing respectively away from the side of stem stem; The coverage rate of the first valve plate and the flow area of first flow match, the coverage rate of the second valve plate and the flow area of the second runner match, and when the first valve plate to coordinate with first flow first flow is blocked time, the second valve plate is in and coordinates and the position blocked it with the second runner; During work, utilize operating device to promote valve rod and rotate, drive stem stem to rotate by the rotation of valve rod, and then drive the first valve plate and the second valve plate to rotate; By controlling the first valve plate and the second valve plate coverage rate on first flow and the second runner controls the flow area size of first flow and the second runner, thus realize regulating the flow between inlet passage and outlet passage, and when first flow and the second runner cover by the first valve plate and the second valve plate respectively completely, namely inlet passage and outlet passage block completely.
The present invention adopt the mode of blocking of rotating folding to substitute in prior art straight up and down block mode, utilize the rotation of the first valve plate and the second valve plate to control the size of the first valve plate and the second valve plate coverage rate on first flow and the second runner, thus realize the control of the flow area to first flow and the second runner.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation carrying out the stop valve of Flow-rate adjustment that the present invention proposes;
Fig. 2 is a kind of structural representation carrying out valve seat in the stop valve of Flow-rate adjustment that the present invention proposes;
Fig. 3 be that the present invention proposes a kind of carry out spool and valve seat in the stop valve of Flow-rate adjustment mate schematic diagram.
Embodiment
Below, by specific embodiment, technological scheme of the present invention is described in detail.
As Figure 1-3, Fig. 1 is a kind of structural representation carrying out the stop valve of Flow-rate adjustment that the present invention proposes; Fig. 2 is a kind of structural representation carrying out valve seat in the stop valve of Flow-rate adjustment that the present invention proposes; Fig. 3 be that the present invention proposes a kind of carry out spool and valve seat in the stop valve of Flow-rate adjustment mate schematic diagram.
With reference to Fig. 1-3, a kind of stop valve carrying out Flow-rate adjustment that the embodiment of the present invention proposes, comprising: valve body 1, valve seat 2, spool 3, valve rod 4 and the operating device 5 for controlling valve rod 4, wherein:
Valve body 1 comprises inlet passage 11, outlet passage 12 and the valve pocket being communicated with inlet passage 11 and outlet passage 12; Valve seat 2 is arranged in valve pocket, and valve seat 2 is cylindrical structure, is provided with water retaining disk 6 in the cavity of valve seat 2;
Water retaining disk 6 comprises the first block water plate 61 and the second block water plate 62, first block water plate 61 and the second block water plate 62 are radial symmetric structure, and the first block water plate 61 is sector structure, first block water plate 61 and the second block water plate 62 side close to each other are interconnected to form integrative-structure, the first block water plate 61 and the second block water plate 62 mutually away from side be connected for form integrative-structure with the sidewall of valve seat 2 respectively; First block water plate 61 and the second block water plate 62 cooperatively interact the first flow 7 and the second runner 8 that to be separated into by the cavity of valve seat 2 and to be flowed to outlet passage 12 for medium by inlet passage 11; Side adjacent with the second runner 8 with first flow 7 on first block water plate 61 is respectively equipped with the first sealing draw-in groove A611 and first and seals draw-in groove B612; Side adjacent with the second runner 8 with first flow 7 on second block water plate 62 is respectively equipped with the second sealing draw-in groove C621 and second and seals draw-in groove D622, and the notch opening direction of the second sealing draw-in groove C621, the second sealing draw-in groove D622 and first sealing draw-in groove A611, the first sealing draw-in groove B612 is in same sense of rotation.
Water retaining disk 6 is positioned at first gear water sheet 61 and the second block water plate 62 connecting part is also provided with through hole 9, and the hole heart of through hole 9 is positioned on the shaft axis of valve seat 2; Spool 3 coordinates the break-make for controlling first flow 7 and the second runner 8 with valve seat 2, spool 3 comprises stem stem 31, first valve plate 32 and the second valve plate 33; Stem stem 31 is positioned at through hole 9, and stem stem 31 is provided with the attachment hole be connected with valve rod 4 near one end of outlet passage 12; First valve plate 32 and the second valve plate 33 are all positioned at the side near inlet passage 11 on water retaining disk 6, and the first valve plate 32 is connected with stem stem 31 respectively with the side of the second valve plate 33, first valve plate 32 and the second valve plate 33 coordinate with valve seat 2 motive sealing respectively away from the side of stem stem 31, and valve seat 2 are positioned at the first valve plate 32 and the second valve plate 33 is provided with the rotating seal component that can carry out rotary seal for the first valve plate 32 and the second valve plate 33 with valve seat 2 connecting part; The coverage rate of the first valve plate 32 and the flow area of first flow 7 match, and the both sides of the first valve plate 32 are respectively equipped with and seal draw-in groove B612 and second with first and seal the first snapin part B321 and the first snapin part C322 that draw-in groove C621 matches; The coverage rate of the second valve plate 33 and the flow area of the second runner 8 match, the both sides of the second valve plate 33 are respectively equipped with and seal draw-in groove A611 and second with first and seal the second snapin part A331 and the second snapin part D332 that draw-in groove D622 matches, and when the first valve plate 32 to coordinate with first flow 7 first flow 7 is blocked time, the second valve plate 33 is in and coordinates and the position blocked it with the second runner 8; One end of valve rod 4 is connected with operating device 5, and the cavity that the other end of valve rod 4 runs through valve seat 2 is fixedly connected with stem stem 31, and valve rod 4 can be controlled to rotate by operating device 5, and then drives stem stem 31 to rotate.
The present invention is work like this, utilizes operating device 5 to promote valve rod 4 and rotates, and drive stem stem 31 to rotate by the rotation of valve rod 4, stem stem 31 rotates drive first valve plate 32 and the second valve plate 33 rotates; When the first valve plate 32 and the second valve plate 33 are in maximum value at the first block water plate 61 and the second block water plate 62 coverage rate, first flow 7 and the second runner 8 are opened completely, and now, the flow between inlet passage 11 and outlet passage 12 is in maximum value; When first flow 7 and the second runner 8 cover by the first valve plate 32 and the second valve plate 33 respectively completely, first snapin part B321 of the first valve plate 32 both sides and the first snapin part C322 lays respectively in the vallecular cavity of the first sealing draw-in groove B612 and second sealing draw-in groove C621, second snapin part A331 of the second valve plate 33 both sides and the second snapin part D332 lays respectively in the first sealing draw-in groove A611 and second sealing draw-in groove D622, now, first flow 7 and the second runner 8 block completely; The adjustment of increase and decrease realization to flow between inlet passage 11 and outlet passage 12 of the coverage rate by controlling the first valve plate 32 and the second valve plate 33 pairs of first flows 7 and the second runner 8 flow area is opened and blocks completely completely in the first circulation 7 and the second runner 8.
As from the foregoing, the present invention is by controlling the first valve plate 32 and the second valve plate 33 coverage rate on first flow 7 and the second runner 8 controls the flow area size of first flow 7 and the second runner 8, thus realize regulating the flow between inlet passage 11 and outlet passage 12, and when first flow 7 and the second runner 8 cover by the first valve plate 32 and the second valve plate 33 respectively completely, namely inlet passage 11 and outlet passage 12 block completely.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technological scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. one kind can be carried out the stop valve of Flow-rate adjustment, it is characterized in that, comprise: valve body (1), valve seat (2), spool (3), valve rod (4) and the operating device (5) for controlling valve rod (4), wherein:
Valve body (1) comprises inlet passage (11), outlet passage (12) and the valve pocket being communicated with inlet passage (11) and outlet passage (12);
Valve seat (2) is arranged in valve pocket, and valve seat (2) is cylindrical structure, is provided with water retaining disk (6) in the cavity of valve seat (2);
Water retaining disk (6) comprises the first block water plate (61) and the second block water plate (62), first block water plate (61) and the second block water plate (62) side close to each other are interconnected, the first block water plate (61) and the second block water plate (62) mutually away from side be connected with the sidewall of valve seat (2) respectively; First block water plate (61) and the second block water plate (62) cooperatively interact and the cavity of valve seat (2) are separated into first flow (7) and the second runner (8);
Water retaining disk (6) is positioned at first gear water sheet (61) and the second block water plate (62) connecting part is also provided with through hole (9), and the hole heart of through hole (9) is positioned on the shaft axis of valve seat (2);
Spool (3) coordinates the break-make for controlling first flow (7) and the second runner (8) with valve seat (2), spool (3) comprises stem stem (31), the first valve plate (32) and the second valve plate (33);
Stem stem (31) is positioned at through hole (9), and stem stem (31) is provided with near one end of outlet passage (12) the attachment hole be connected with valve rod (4);
First valve plate (32) and the second valve plate (33) are all positioned at the upper side near inlet passage (11) of water retaining disk (6), and the first valve plate (32) is connected with stem stem (31) respectively with the side of the second valve plate (33), the first valve plate (32) and the second valve plate (33) coordinate with valve seat (2) motive sealing respectively away from the side of stem stem (31); The coverage rate of the first valve plate (32) and the flow area of first flow (7) match, the coverage rate of the second valve plate (33) and the flow area of the second runner (8) match, and when the first valve plate (32) to coordinate with first flow (7) first flow (7) is blocked time, the second valve plate (33) is in and coordinates and the position blocked it with the second runner (8);
One end of valve rod (4) is connected with operating device (5) and can be controlled to rotate by operating device (5), and the cavity that the other end of valve rod (4) runs through valve seat (2) is fixedly connected with stem stem (31).
2. the stop valve carrying out Flow-rate adjustment according to claim 1, it is characterized in that, the upper side adjacent with the second runner (8) with first flow (7) of the first block water plate (61) is respectively equipped with the first sealing draw-in groove A (611) and first and seals draw-in groove B (612); The upper side adjacent with the second runner (8) with first flow (7) of second block water plate (62) is respectively equipped with the second sealing draw-in groove C (621) and second and seals draw-in groove D (622), and the second sealing draw-in groove C (621), the second sealing draw-in groove D (622) and the first sealing draw-in groove A (611), first seal the notch opening direction of draw-in groove B (612) in same sense of rotation.
3. the stop valve carrying out Flow-rate adjustment according to claim 2, it is characterized in that, the both sides of the first valve plate (32) are respectively equipped with and seal draw-in groove B (612) and second with first and seal the first snapin part B (321) and the first snapin part C (322) that draw-in groove C (621) matches; The both sides of the second valve plate (33) are respectively equipped with and seal draw-in groove A (611) and second with first and seal the second snapin part A (331) and the second snapin part D (332) that draw-in groove D (622) matches.
4. the stop valve carrying out Flow-rate adjustment according to claim 1, it is characterized in that, valve seat (2) is positioned at the first valve plate (32) and the second valve plate (33) and valve seat (2) connecting part and is provided with the rotating seal component that can carry out rotary seal for the first valve plate (32) and the second valve plate (33).
5. the stop valve carrying out Flow-rate adjustment according to claim 1, is characterized in that, the first block water plate (61) and the second block water plate (62) are radial symmetric structure.
6. the stop valve carrying out Flow-rate adjustment according to claim 5, is characterized in that, the first block water plate (61) is sector structure.
7. the stop valve carrying out Flow-rate adjustment according to claim 6, is characterized in that, the first block water plate (61) and the second block water plate (62) are structure as a whole.
8. the stop valve carrying out Flow-rate adjustment according to claim 7, is characterized in that, the first block water plate (61) and the second block water plate (62) are structure as a whole with valve seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510472696.2A CN105134988B (en) | 2015-08-04 | 2015-08-04 | A kind of shut-off valve carrying out flow adjusting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510472696.2A CN105134988B (en) | 2015-08-04 | 2015-08-04 | A kind of shut-off valve carrying out flow adjusting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105134988A true CN105134988A (en) | 2015-12-09 |
| CN105134988B CN105134988B (en) | 2019-02-15 |
Family
ID=54720462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510472696.2A Active CN105134988B (en) | 2015-08-04 | 2015-08-04 | A kind of shut-off valve carrying out flow adjusting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134988B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860807A (en) * | 2017-12-11 | 2018-03-30 | 重庆晓微城企业孵化器有限公司 | A kind of biobattery sensor assembly |
| CN109093947A (en) * | 2018-07-27 | 2018-12-28 | 芜湖市崇兴乐塑胶有限公司 | A kind of plastics-production mold of adjustable plastic flow of molten |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201100436Y (en) * | 2007-11-20 | 2008-08-13 | 陈利银 | Adjusting valve |
| CN102297270A (en) * | 2011-07-29 | 2011-12-28 | 浙江菲达环保科技股份有限公司 | Novel flow control valve |
| CN103968097A (en) * | 2013-01-24 | 2014-08-06 | 何润岚 | Plate type rotary valve |
| CN204493767U (en) * | 2015-03-17 | 2015-07-22 | 永嘉县恒正阀门有限公司 | Stop valve |
| US20150211653A1 (en) * | 2012-07-12 | 2015-07-30 | Extreme Technologies, Llc | Valve Assembly |
| EP2647791A3 (en) * | 2012-04-06 | 2016-07-06 | Gyrodata, Incorporated | Valve for communication of a measurement while drilling system |
-
2015
- 2015-08-04 CN CN201510472696.2A patent/CN105134988B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201100436Y (en) * | 2007-11-20 | 2008-08-13 | 陈利银 | Adjusting valve |
| CN102297270A (en) * | 2011-07-29 | 2011-12-28 | 浙江菲达环保科技股份有限公司 | Novel flow control valve |
| EP2647791A3 (en) * | 2012-04-06 | 2016-07-06 | Gyrodata, Incorporated | Valve for communication of a measurement while drilling system |
| US20150211653A1 (en) * | 2012-07-12 | 2015-07-30 | Extreme Technologies, Llc | Valve Assembly |
| CN103968097A (en) * | 2013-01-24 | 2014-08-06 | 何润岚 | Plate type rotary valve |
| CN204493767U (en) * | 2015-03-17 | 2015-07-22 | 永嘉县恒正阀门有限公司 | Stop valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860807A (en) * | 2017-12-11 | 2018-03-30 | 重庆晓微城企业孵化器有限公司 | A kind of biobattery sensor assembly |
| CN109093947A (en) * | 2018-07-27 | 2018-12-28 | 芜湖市崇兴乐塑胶有限公司 | A kind of plastics-production mold of adjustable plastic flow of molten |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105134988B (en) | 2019-02-15 |
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