CN112594437A - Novel wax injection pneumatic control valve and application - Google Patents
Novel wax injection pneumatic control valve and application Download PDFInfo
- Publication number
- CN112594437A CN112594437A CN202011265714.7A CN202011265714A CN112594437A CN 112594437 A CN112594437 A CN 112594437A CN 202011265714 A CN202011265714 A CN 202011265714A CN 112594437 A CN112594437 A CN 112594437A
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- valve body
- valve core
- valve
- outer valve
- inlet
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0442—Spindles and actuating means
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/10—Means for additional adjustment of the rate of flow
Abstract
The invention belongs to the technical field of wax injection and corrosion prevention of automobile body cavities, and discloses a novel wax injection pneumatic control valve and application thereof. Novel notes wax gas accuse valve includes: the device comprises a swing cylinder, a limiting buffer, a control rod, a connecting rod, an outer valve body and a valve core; the outer valve body is connected with the swing cylinder through a connecting rod, and the swing cylinder can drive the valve core to rotate through a control rod; the valve core is sleeved in the outer valve body; the outer valve body is wrapped with an outer valve body inlet and an outer valve body outlet, and the valve core comprises a valve core inlet and a valve core outlet; the valve core outlet is communicated with the outer valve body outlet. The novel wax injection pneumatic control valve can realize variable flow output control, meets the technical requirements of vehicle body wax injection, and has small floor area and low cost.
Description
Technical Field
The invention relates to the technical field of wax injection and corrosion prevention of automobile body cavities, in particular to a novel wax injection pneumatic control valve and application thereof.
Background
The description of the background of the invention pertaining to the related art to which this invention pertains is given for the purpose of illustration and understanding only of the summary of the invention and is not to be construed as an admission that the applicant is explicitly or implicitly admitted to be prior art to the date of filing this application as first filed with this invention.
The cavity wax injection is a technological method capable of improving the corrosion resistance of the vehicle body, and is mainly applied to corrosion resistance of the vehicle body chassis and the cavity formed by welding the four doors and the two covers. At present, wax is injected into a cavity in a hot wax injection mode, dozens of wax injection process holes are arranged on a vehicle body, and a screw pump is generally adopted for one-to-one or one-to-two operation. Usually, dozens of screw pumps controlled in a variable frequency mode need to be started simultaneously for filling, and the screw pumps need to be installed in an independent groove body filled with high-temperature liquid wax. Obviously, the investment cost of the screw pump is large, and the occupied area of the equipment is relatively large.
Disclosure of Invention
The embodiment of the invention aims to provide a novel wax injection pneumatic control valve and application thereof.
The purpose of the invention is realized by the following technical scheme:
a novel wax injection pneumatic control valve comprises: the device comprises a swing cylinder, a limiting buffer, a control rod, a connecting rod, an outer valve body and a valve core;
the outer valve body is connected with the swing cylinder through a connecting rod, and the swing cylinder can drive the valve core to rotate through a control rod;
the valve core is sleeved in the outer valve body; the outer valve body is wrapped with an outer valve body inlet and an outer valve body outlet, and the valve core comprises a valve core inlet and a valve core outlet; the valve core outlet is communicated with the outer valve body outlet.
Further, the valve core outlet is arranged at one axial end of the valve core; the outlet of the outer valve body is arranged at the same end of the outer valve body as the outlet of the valve core.
Furthermore, the valve core inlet is communicated with the outer valve body inlet, and the whole communication and the partial communication are included.
Furthermore, the valve core inlet is arranged on the circumferential side wall of the valve core; the inlet of the outer valve body is arranged on the circumferential side wall of the outer valve body; the connection and the disconnection of the valve core inlet and the outer valve body outlet are controlled by the rotation of the control valve core.
Further, the valve core comprises a valve core emptying port; the valve core emptying port is arranged on the circumferential side wall of the valve core;
the outer valve body comprises an outer valve body emptying port; the outer valve body emptying port is arranged on the circumferential side wall of the outer valve body; the communication and the closing of the valve core emptying port and the outer valve body emptying port are controlled by controlling the rotation of the valve core.
Further, when the outer valve body emptying port is communicated with the valve core emptying port, the outer valve body inlet and the valve core inlet are closed.
Furthermore, the novel wax injection pneumatic control valve comprises an axial sealing ring and an end face sealing ring.
Furthermore, the novel wax injection pneumatic control valve comprises a connecting plate, and the outer valve body is connected with the connecting rod through the connecting plate.
Furthermore, an end cover used for being connected with the connecting rod is arranged on the connecting plate.
On the other hand, the application of the novel wax injection pneumatic control valve is to apply the novel wax injection pneumatic control valve to the wax injection of the cavity of the automobile body.
The embodiment of the invention has the following beneficial effects:
the novel wax injection pneumatic control valve is adopted, so that the replacement effect of the screw pump can be realized, the investment is saved, the wax injection equipment is miniaturized, and the occupied area is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the apparatus of the present invention;
figure 2 is a schematic view of the installation of the device of the present invention.
Detailed Description
The present application is further described below with reference to examples.
In the following description, different "one embodiment" or "an embodiment" may not necessarily refer to the same embodiment, in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art. Various embodiments may be replaced or combined, and other embodiments may be obtained according to the embodiments without creative efforts for those skilled in the art.
A novel wax injection pneumatic control valve comprises: the device comprises a swing cylinder 1, a limiting buffer 2, a control rod 3, a connecting rod 4, an outer valve body 7 and a valve core 9;
the outer valve body 7 is connected with the swing cylinder 1 through a connecting rod 4, and the swing cylinder 1 can drive the valve core 9 to rotate through the control rod 3;
the valve core 9 is sleeved in the outer valve body 7; the outer valve body 7 comprises an outer valve body inlet (the valve core inlet and the outer valve body inlet are positioned at 14 positions in the figure 2) and an outer valve body outlet 16, and the valve core 9 comprises a valve core inlet (the valve core inlet and the outer valve body inlet are positioned at 14 positions in the figure 2) and a valve core outlet 15; the spool outlet 15 is in communication with the outer valve body outlet 16.
In some embodiments of the present invention, the spool outlet 15 is at one axial end of the spool 9; the outer valve body outlet 16 is at the same end of the outer valve body 7 as the spool outlet 15.
In some embodiments of the present invention, the valve core inlet (at 14 in fig. 2) is in communication with the outer valve body inlet (at 14 in fig. 2), including both full and partial communication.
In some embodiments of the present invention, the valve core inlet (the valve core inlet and the outer valve body inlet are at the position 14 in fig. 2) is arranged on the circumferential side wall of the valve core; the outer valve body inlet (the valve core inlet and the outer valve body inlet are positioned at the position 14 in the figure 2) is arranged on the circumferential side wall of the outer valve body 7; the communication and closure of the spool inlet (spool inlet and outer body inlet at 14 in fig. 2) and the outer body outlet 16 is controlled by rotation of the control spool 9.
In some embodiments of the present invention, the valve element 7 includes a valve element drain (the positions of the outer valve body drain and the valve element drain are shown as reference number 17 in fig. 2); the valve core emptying port (the positions of the outer valve body emptying port and the valve core emptying port are shown as a mark 17 in figure 2) is arranged on the circumferential side wall of the valve core 9;
the outer valve body 7 comprises an outer valve body emptying port (the positions of the outer valve body emptying port and the valve core emptying port are shown as a mark 17 in figure 2); the outer valve body emptying port (the positions of the outer valve body emptying port and the valve core emptying port are shown as a mark 17 in figure 2) is arranged on the circumferential side wall of the outer valve body 7; the connection and the disconnection of the spool drain (the positions of the outer valve body drain and the spool drain are shown by the reference numeral 17 in fig. 2) and the outer valve body drain (the positions of the outer valve body drain and the spool drain are shown by the reference numeral 17 in fig. 2) are controlled by the rotation of the control spool 9.
In some embodiments of the present invention, when the outer valve body drain (the positions of the outer valve body drain and the spool drain are shown by reference numeral 17 in fig. 2) and the spool drain (the positions of the outer valve body drain and the spool drain are shown by reference numeral 17 in fig. 2) are communicated, the outer valve body inlet (the position of the spool inlet and the outer valve body inlet at reference numeral 14 in fig. 2) and the spool inlet (the position of the spool inlet and the outer valve body inlet at reference numeral 14 in fig. 2) are closed.
In some embodiments of the invention, the novel wax injection pneumatic control valve comprises an axial sealing ring and an end face sealing ring.
In some embodiments of the invention, the novel wax injection pneumatic control valve comprises a connecting plate, and the outer valve body is connected with the connecting rod through the connecting plate.
In some embodiments of the invention, the connecting plate is provided with an end cap for connecting with the connecting rod.
The application of the novel wax injection pneumatic control valve is to apply the novel wax injection pneumatic control valve to wax injection of a cavity of an automobile body.
The novel wax injection pneumatic control valve is adopted, so that the replacement effect of the screw pump can be realized, the investment is saved, the wax injection equipment is miniaturized, and the occupied area is reduced.
Referring to fig. 1 and 2, the structure schematic diagram and the installation schematic diagram of the novel wax injection pneumatic control valve are shown, and the novel wax injection pneumatic control valve comprises a swing cylinder 1, a limiting buffer 2, a control rod 3, a connecting rod 4, a connecting plate 5, an end cover 6, an outer valve body 7, axial sealing rings a and 9, a valve core 8, an end face sealing ring a and 10, end face sealing rings B and 12, and an axial sealing ring B12.
An axial sealing ring A8 and an axial sealing ring B12 are installed in a sealing ring limiting groove of the outer valve body 7, the outer valve body 7 is fixed on the connecting plate 5, the valve core 9 is inserted into an inner hole of the outer valve body 7, and the end cover 6 is installed on the connecting plate 5 to limit the axial movement of the valve core 7. One end of a connecting rod 4 is arranged on a connecting plate 5, and a swing cylinder 1 is connected with the other end of the connecting rod 4; one end of the control rod 3 is fixed on the output shaft of the swing cylinder 1, and the other end is connected with the valve core 7; the limiting buffer 2 is fixed at the tail part of the swing cylinder 1.
The device of the invention is arranged on a fixed bracket 13, and an end face of the outer valve body 7 combined with the bracket 13 is provided with an end face seal ring A10 and an end face seal ring B11.
The working process is as follows:
closing a valve: the swing cylinder 1 rotates clockwise to a set position of the limiting buffer 2, an output shaft of the swing cylinder 1 drives the control rod 3 to rotate together, the control rod 3 drives the valve core 9 to rotate in the outer valve body 7, so that an inlet of the valve core 9 (the inlet of the valve core and the inlet of the outer valve body are at a position 14 in fig. 2) and an inlet of the outer valve body 7 (the inlet of the valve core and the inlet of the outer valve body are at a position 14 in fig. 2) are not overlapped completely, and the valve is closed.
Opening a valve: the swing cylinder 1 rotates anticlockwise to a set position of the limiting buffer 2, an output shaft of the swing cylinder 1 drives the control rod 3 to rotate together, the control rod 3 drives the valve core 9 to rotate in the outer valve body, so that an inlet (a valve core inlet and an outer valve body inlet are positioned at 14 positions in fig. 2) of the valve core 9 and an inlet (a valve core inlet and an outer valve body inlet are positioned at 14 positions in fig. 2) of the outer valve body 7 are partially or completely overlapped, and the valve is in an open state.
Flow regulation: the coincidence degree of the inlet of the valve core 9 (the position of the valve core inlet and the outer valve body inlet is marked with 14 in figure 2) and the inlet of the outer valve body 7 (the position of the valve core inlet and the outer valve body inlet is marked with 14 in figure 2) is determined by the set position of the limiting buffer 2, the coincidence degree corresponds to the valve flow, and the position of the limiting buffer 2 can be manually adjusted according to the working condition.
Emptying a pipeline: after the valve is closed, the inlet of the valve core 9 (the inlet of the valve core and the inlet of the outer valve body are at the position 14 in fig. 2) is completely misaligned with the inlet of the outer valve body 7 (the inlet of the valve core and the inlet of the outer valve body are at the position 14 in fig. 2), and the inlets (the inlet of the valve core and the inlet of the outer valve body are at the position 14 in fig. 2) are closed. At this time, the drain port of the spool 9 (the positions of the outer valve body drain port and the spool drain port are shown by the reference numeral 17 in fig. 2) coincides with the drain port of the outer valve body 7 (the positions of the outer valve body drain port and the spool drain port are shown by the reference numeral 17 in fig. 2), and the liquid wax in the inner cavity of the spool 9 and the output connecting pipeline is discharged from the drain port (the positions of the outer valve body drain port and the spool drain port are shown by the reference numeral 17 in fig. 2).
The sample device disclosed by the invention realizes the functions of closing, opening, regulating the flow and emptying the pipeline of the wax injection system.
It should be noted that the above embodiments can be freely combined as necessary. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a novel annotate wax gas accuse valve which characterized in that includes: the device comprises a swing cylinder, a limiting buffer, a control rod, a connecting rod, an outer valve body and a valve core;
the outer valve body is connected with the swing cylinder through a connecting rod, and the swing cylinder can drive the valve core to rotate through a control rod;
the valve core is sleeved in the outer valve body; the outer valve body is wrapped with an outer valve body inlet and an outer valve body outlet, and the valve core comprises a valve core inlet and a valve core outlet; the valve core outlet is communicated with the outer valve body outlet.
2. The novel wax injection pneumatic control valve as claimed in claim 1, wherein the valve core outlet is at one axial end of the valve core; the outlet of the outer valve body is arranged at the same end of the outer valve body as the outlet of the valve core.
3. The novel wax injection pneumatic control valve as claimed in claim 1, wherein the valve core inlet is communicated with the outer valve body inlet, including full communication and partial communication.
4. The novel wax injection pneumatic control valve according to claim 1, wherein the valve core inlet is formed in the circumferential side wall of the valve core; the inlet of the outer valve body is arranged on the circumferential side wall of the outer valve body; the connection and the disconnection of the valve core inlet and the outer valve body outlet are controlled by the rotation of the control valve core.
5. The novel wax injection pneumatic control valve according to claim 1,
the valve core comprises a valve core emptying port; the valve core emptying port is arranged on the circumferential side wall of the valve core;
the outer valve body comprises an outer valve body emptying port; the outer valve body emptying port is arranged on the circumferential side wall of the outer valve body; the communication and the closing of the valve core emptying port and the outer valve body emptying port are controlled by controlling the rotation of the valve core.
6. The novel wax injection pneumatic control valve according to claim 4, wherein when the outer valve body evacuation port and the valve core evacuation port are communicated, the outer valve body inlet and the valve core inlet are closed.
7. The novel wax injection pneumatic control valve according to claim 1, characterized in that the novel wax injection pneumatic control valve comprises an axial sealing ring and an end face sealing ring.
8. The novel wax injection pneumatic control valve according to claim 1, characterized in that the novel wax injection pneumatic control valve comprises a connecting plate, and the outer valve body is connected with the connecting rod through the connecting plate.
9. The novel wax injection pneumatic control valve according to claim 8, wherein an end cover used for being connected with the connecting rod is arranged on the connecting plate.
10. The application of the novel wax injection pneumatic control valve is characterized in that the novel wax injection pneumatic control valve as claimed in any one of claims 1 to 9 is applied to wax injection of a cavity of an automobile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011265714.7A CN112594437A (en) | 2020-11-13 | 2020-11-13 | Novel wax injection pneumatic control valve and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011265714.7A CN112594437A (en) | 2020-11-13 | 2020-11-13 | Novel wax injection pneumatic control valve and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112594437A true CN112594437A (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011265714.7A Pending CN112594437A (en) | 2020-11-13 | 2020-11-13 | Novel wax injection pneumatic control valve and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112594437A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531160A (en) * | 2021-06-25 | 2021-10-22 | 机械工业第九设计研究院有限公司 | Two-way rotary wax delivery valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272681A (en) * | 1969-04-17 | 1972-05-03 | Ahmad Aziz | Improvements in or relating to temperature control of fluid systems |
| DE202004009074U1 (en) * | 2003-06-11 | 2004-09-30 | De'longhi S.P.A. | Valve for controlling steam in coffee machine comprises shaft which rotates in housing with steam inlet and outlet, shaft having peripheral ribs forming steam chamber and sealing ring being mounted obliquely on it |
| JP2007071330A (en) * | 2005-09-08 | 2007-03-22 | Yamatake Corp | Valve element for ball valve and ball valve |
| CN102020227A (en) * | 2009-09-11 | 2011-04-20 | 南京乐惠轻工装备制造有限公司 | Long-tube liquid filling device and filling method |
| CN102269283A (en) * | 2011-07-15 | 2011-12-07 | 大连天禄机电设备制造有限公司 | Novel paraffin injection valve of paraffin continuous molding machine |
| CN106104118A (en) * | 2014-03-14 | 2016-11-09 | 格丽佛里斯格罗伯有限公司 | A kind of water distribution for faucet, open and close hull closure |
| CN206723481U (en) * | 2017-05-12 | 2017-12-08 | 大连京丰机械制造有限公司 | It is a kind of to be used to adjust casting flow and the cone valve and its casting system of opening and closing |
| CN208237193U (en) * | 2018-05-18 | 2018-12-14 | 营口诚源机械设备有限公司 | Hydraulic cone valve |
-
2020
- 2020-11-13 CN CN202011265714.7A patent/CN112594437A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272681A (en) * | 1969-04-17 | 1972-05-03 | Ahmad Aziz | Improvements in or relating to temperature control of fluid systems |
| DE202004009074U1 (en) * | 2003-06-11 | 2004-09-30 | De'longhi S.P.A. | Valve for controlling steam in coffee machine comprises shaft which rotates in housing with steam inlet and outlet, shaft having peripheral ribs forming steam chamber and sealing ring being mounted obliquely on it |
| JP2007071330A (en) * | 2005-09-08 | 2007-03-22 | Yamatake Corp | Valve element for ball valve and ball valve |
| CN102020227A (en) * | 2009-09-11 | 2011-04-20 | 南京乐惠轻工装备制造有限公司 | Long-tube liquid filling device and filling method |
| CN102269283A (en) * | 2011-07-15 | 2011-12-07 | 大连天禄机电设备制造有限公司 | Novel paraffin injection valve of paraffin continuous molding machine |
| CN106104118A (en) * | 2014-03-14 | 2016-11-09 | 格丽佛里斯格罗伯有限公司 | A kind of water distribution for faucet, open and close hull closure |
| CN206723481U (en) * | 2017-05-12 | 2017-12-08 | 大连京丰机械制造有限公司 | It is a kind of to be used to adjust casting flow and the cone valve and its casting system of opening and closing |
| CN208237193U (en) * | 2018-05-18 | 2018-12-14 | 营口诚源机械设备有限公司 | Hydraulic cone valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531160A (en) * | 2021-06-25 | 2021-10-22 | 机械工业第九设计研究院有限公司 | Two-way rotary wax delivery valve |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 1958, Chuangye street, Changchun automobile economic and Technological Development Zone, Changchun City, Jilin Province, 130011 Applicant after: The Ninth Design and Research Institute of Machinery Industry Co.,Ltd. Address before: No. 1958, Chuangye street, Changchun automobile economic and Technological Development Zone, Changchun City, Jilin Province, 130011 Applicant before: Machinery Industry Ninth Design and Research Institute Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210402 |
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| RJ01 | Rejection of invention patent application after publication |