CN114719043A - Vacuum combination valve - Google Patents
Vacuum combination valve Download PDFInfo
- Publication number
- CN114719043A CN114719043A CN202210379150.2A CN202210379150A CN114719043A CN 114719043 A CN114719043 A CN 114719043A CN 202210379150 A CN202210379150 A CN 202210379150A CN 114719043 A CN114719043 A CN 114719043A
- Authority
- CN
- China
- Prior art keywords
- valve
- ball
- rod
- block
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims description 19
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K5/06—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 spherical surfaces; Packings therefor
-
- 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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/522—Mechanical actuating means with crank, eccentric, or cam comprising a tap or cock
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
Abstract
A vacuum combination valve comprises a valve body, a valve cavity, a valve shaft, a valve ball, a valve hole, a valve seat, a lower cavity, a lower valve rod, a crank, a connecting rod, a sliding block, a convex shoulder, a ball core, a stop frame, a flange part and a connecting pipe; wherein be equipped with the valve pocket in the valve pocket, be equipped with in the valve pocket the valve ball is equipped with the valve opening in the valve ball, and the valve ball top is equipped with the valve shaft, the valve ball with the disk seat supports and leans on, and the disk seat top is equipped with the upper cover, the valve ball below is equipped with lower valve rod, lower valve rod sets up in the lower chamber, lower valve rod is connected with the crank, the crank is connected connecting rod one end, the connecting rod other end is connected the slider.
Description
Technical Field
The invention relates to the field of vehicle cabinet manufacturing, in particular to a vacuum combination valve.
Background
The military and civil vehicles built by Hengyang Taihao comprise vehicle-mounted cabinets, square and regular cabinet plates are not manufactured in order to adapt to the environment in a vehicle in the manufacturing process of the vehicle-mounted cabinets, the square and regular cabinet plates are manufactured and spliced easily, non-planar plates are required to be manufactured in order to adapt to the environment in the vehicle, a relatively complex process is required, and vacuum manufacturing is also a common plate bending process.
Vacuum device is used in the vacuum manufacturing, and the panel holds in vacuum bag or vacuum cover, and vacuum bag adaptation mould wherein utilizes heating device to heat panel, and the heating makes the panel soften and carries out the evacuation simultaneously and handle for panel bending deformation laminating mould.
However, in actual production practice, the following problems exist:
1. vacuum suction device is a series of devices, sets up near waiting to process panel, and heating device also sets up near taking processing panel, and the two has the interference problem in space, and processing simultaneously also can make the vacuum suction connecting pipe receive the thermal influence rotten, and this device that just needs to change the dismantlement is with more reasonable arrangement process.
The vacuum pumping device comprises a metal tube with a liner, and is installed by forming a small hole in the air bag, inserting the metal tube into the small hole, and placing a rubber pad and a metal plate on the lamination stack with the air bag film sandwiched between the two layers to prevent air leakage during vacuum pumping. The vacuum valve is connected to the metal pipe through the pipeline, and when the vacuum valve is dismantled, the pipeline and the metal pipe cannot be exposed to the air, otherwise, vacuum damage can be caused, and direct dismantling cannot be realized.
2. The combined valve in the prior art is also common, and after the combined valve is disassembled, different valves arranged in different sections can be easily controlled in a segmented mode, but the problem that how to realize the multi-valve function with low cost and small occupied space is difficult to solve is solved.
3. The check valve in the prior art relies on spring return and gravity return, but the return is only limited to short-distance return, and no clear solution is available for long-distance return.
4. The crank-slider mechanism in the prior art can convert rotary motion into linear motion, but cannot change the direction of the linear motion.
5. In actual work, the return structure and the crank-slider mechanism operate the valve ball, but too many complex mechanisms are easy to interfere.
Disclosure of Invention
In order to overcome the above problems, the present invention proposes a solution to solve the above problems simultaneously.
The technical scheme adopted by the invention for solving the technical problems is as follows: a vacuum combination valve comprises a valve body, a valve cavity, a valve shaft, a valve ball, a valve hole, a valve seat, a lower cavity, a lower valve rod, a crank, a connecting rod, a sliding block, a convex shoulder, a ball core, a stop frame, a flange piece, a connecting pipe, a cover plate, an ejector rod, a ball, a bottom wall, a left support leg, a stop rod, a push rod, a right support leg, a top surface, an inclined surface, a guide rail, a nut, a stop block, a metal pipe, a seat block, an upper cover and a clamping block;
the valve comprises a valve body, a valve seat, an upper cover, a lower valve rod, a crank, a guide rail, a slider, a valve ball, a valve hole, a valve shaft, a lower valve rod, a crank, a guide rail;
the lower cavity comprises a transverse channel and a vertical channel, the cover plate is arranged in the vertical channel, one end of the cover plate is rotatably connected to the upper end of the vertical channel, the lower end of the cover plate is connected with the ejector rod, and the lower end of the ejector rod is connected with the ball;
the bottom wall of a gas passage of the valve cavity is provided with two sliding grooves for accommodating a left supporting leg and a right supporting leg, a stop lever and a push rod are arranged between the left supporting leg and the right supporting leg, the stop lever is positioned above the push rod, the left side of the left supporting leg and the right side of the right supporting leg are both provided with the fixture blocks, and the fixture blocks are positioned above the bottom wall; the left leg is positioned on the left side of the cover plate, and the right leg is positioned on the right side of the cover plate;
one side of the valve body is connected with the connecting pipe through a flange piece, the connecting pipe extends downwards after being bent, the lower end of the connecting pipe is provided with the check block, the nut is arranged on the outer side of the check block, the seat block is arranged below the check block, the metal pipe is integrally arranged below the seat block, and the upper surface of the seat block is provided with a ball seat to accommodate the ball core.
Further, the upper cover is a round cover.
Further, the valve shaft is driven by a motor.
Further, the periphery of the seat block is provided with an external thread.
Further, the seat block is in threaded connection with the nut.
Furthermore, a through hole is formed in the seat block and communicated with the metal pipe.
Further, a sealing element is arranged between the upper cover and the valve shaft.
Further, a sealing element is arranged between the flange piece and the valve body.
Further, the vertical channel is provided with an inclined surface.
Further, when the valve ball is opened, the ball is lapped on the inclined surface, and when the valve ball is closed, the top surface is supported below the ball.
The invention has the beneficial effects that:
1. to the 1 st point that the background art provided, set up the linkage structure between vacuum valve and the metal air cock, the evacuation finishes the back, can be in order to dismantle the pipeline, because the metal air cock has been plugged up to the spheroid, consequently dismantles the pipeline and can not cause the gas that the pipeline of dismantling caused to improperly get into the metal air cock, can not destroy the vacuum environment to connect for detachable and provide basic prerequisite.
2. Aiming at the 2 nd point proposed by the background technology, a simple connecting mechanism of a crank sliding block is arranged, the cost of opening a hole on a valve body is not high, and the total cost is far lower than the self cost and the installation cost of resetting a second valve.
3. Aiming at the 3 rd point provided by the background technology, a convex shoulder structure is arranged on the sliding block, when the convex shoulder moves, the convex shoulder can push the blocking frame, and the blocking frame pushes the one-way valve ball to return the valve ball, so that the long-distance return is realized.
4. Aiming at the 4 th point provided by the background technology, an inclined plane is arranged on the sliding block, the inclined plane pushes the ball, the ball drives the ejector rod, the ejector rod drives the cover plate, and the cover plate jacks up the valve ball, so that the horizontal motion of the sliding block is converted into the up-and-down motion of the valve ball.
5. Aiming at the 5 th point of the background technology, the span of the supporting leg of the blocking frame is set to be larger than the width of the cover plate, so that the valve ball can fall into the path of the channel in the cover plate and cannot interfere with the blocking frame; the sliding groove is arranged on the channel in the valve body, the blocking frame can move in the sliding groove, when the valve ball is sucked, the blocking frame is pushed to fall into the cover plate, and when the sliding block moves, the blocking frame is pushed to push the valve ball to reset.
Note: the above designs are not sequential and each makes a distinct and significant advance of the present invention over the prior art.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the suction state of the vacuum valve of the present invention
FIG. 2 is a schematic view of the vacuum valve of the present invention in a closed state
FIG. 3 is a schematic view of the slider-crank structure of the present invention
FIG. 4 is a schematic view of a barrier frame of the present invention
FIG. 5 is a schematic view of a metal air faucet connection structure at A in FIGS. 1 and 2
In the figures, the reference numerals are as follows:
1. the valve comprises a valve body 2, a valve cavity 3, a valve shaft 4, a valve ball 5, a valve hole 6, a valve seat 7, a lower cavity 8, a lower valve rod 9, a crank 10, a connecting rod 11, a sliding block 12, a shoulder 13, a ball core 14, a stop frame 15, a flange piece 16, a connecting pipe 17, a vacuum bag 18, a cover plate 19, a mandril 20, a ball 21, a bottom wall 22, a left leg 23, a stop rod 24, a push rod 25, a right leg 26, a top surface 27, an inclined surface 28, a guide rail 29, a nut 30, a stop block 31, a metal pipe 32, a ball seat 33, a seat block 34, an upper cover 35, a stop block 31
Detailed Description
As shown in the figure: a vacuum combination valve comprises a valve body, a valve cavity, a valve shaft, a valve ball, a valve hole, a valve seat, a lower cavity, a lower valve rod, a crank, a connecting rod, a sliding block, a convex shoulder, a ball core, a stop frame, a flange piece, a connecting pipe, a cover plate, an ejector rod, a ball, a bottom wall, a left support leg, a stop rod, a push rod, a right support leg, a top surface, an inclined surface, a guide rail, a nut, a stop block, a metal pipe, a seat block, an upper cover and a clamping block;
the valve comprises a valve body, a valve seat, an upper cover, a lower valve rod, a crank, a guide rail, a slider, a valve ball, a valve hole, a valve shaft, a lower valve rod, a crank, a guide rail;
the lower cavity comprises a transverse channel and a vertical channel, the cover plate is arranged in the vertical channel, one end of the cover plate is rotatably connected to the upper end of the vertical channel, the lower end of the cover plate is connected with the ejector rod, and the lower end of the ejector rod is connected with the ball;
the bottom wall of a gas passage of the valve cavity is provided with two sliding grooves for accommodating a left supporting leg and a right supporting leg, a stop lever and a push rod are arranged between the left supporting leg and the right supporting leg, the stop lever is positioned above the push rod, the left side of the left supporting leg and the right side of the right supporting leg are both provided with the fixture blocks, and the fixture blocks are positioned above the bottom wall; the left leg is positioned on the left side of the cover plate, and the right leg is positioned on the right side of the cover plate;
one side of the valve body is connected with the connecting pipe through a flange piece, the connecting pipe extends downwards after being bent, the lower end of the connecting pipe is provided with the check block, the nut is arranged on the outer side of the check block, the seat block is arranged below the check block, the metal pipe is integrally arranged below the seat block, and the upper surface of the seat block is provided with a ball seat to accommodate the ball core.
As shown in the figure: the upper cover is a round cover. The valve shaft is driven by a motor. The periphery of the seat block is provided with external threads. The seat block is in threaded connection with the nut. The seat block is provided with a through hole communicated with the metal pipe. And a sealing element is arranged between the upper cover and the valve shaft. And a sealing element is arranged between the flange piece and the valve body. The vertical channel is provided with an inclined plane. When the valve ball is opened, the ball is lapped on the inclined plane, and when the valve ball is closed, the top surface is supported below the ball.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A vacuum combination valve, characterized in that: the valve comprises a valve body, a valve cavity, a valve shaft, a valve ball, a valve hole, a valve seat, a lower cavity, a lower valve rod, a crank, a connecting rod, a sliding block, a convex shoulder, a ball core, a blocking frame, a flange piece, a connecting pipe, a cover plate, an ejector rod, a ball, a bottom wall, a left supporting leg, a stop lever, a push rod, a right supporting leg, a top surface, an inclined plane, a guide rail, a nut, a stop block, a metal pipe, a seat block, an upper cover and a clamping block;
the valve comprises a valve body, a valve seat, an upper cover, a lower valve rod, a crank, a guide rail, a slider, a valve ball, a valve hole, a valve shaft, a lower valve rod, a crank, a guide rail;
the lower cavity comprises a transverse channel and a vertical channel, the cover plate is arranged in the vertical channel, one end of the cover plate is rotatably connected to the upper end of the vertical channel, the lower end of the cover plate is connected with the ejector rod, and the lower end of the ejector rod is connected with the ball;
the bottom wall of a gas passage of the valve cavity is provided with two sliding grooves for accommodating a left supporting leg and a right supporting leg, a stop rod and a push rod are arranged between the left supporting leg and the right supporting leg, the stop rod is positioned above the push rod, the left side of the left supporting leg and the right side of the right supporting leg are both provided with the fixture blocks, and the fixture blocks are positioned above the bottom wall; the left leg is positioned on the left side of the cover plate, and the right leg is positioned on the right side of the cover plate;
one side of the valve body is connected with the connecting pipe through a flange piece, the connecting pipe extends downwards after being bent, the lower end of the connecting pipe is provided with the check block, the nut is arranged on the outer side of the check block, the seat block is arranged below the check block, the metal pipe is integrally arranged below the seat block, and the upper surface of the seat block is provided with a ball seat to accommodate the ball core.
2. A vacuum combination valve as defined in claim 1, wherein: the upper cover is a round cover.
3. A vacuum combination valve as defined in claim 1, wherein: the valve shaft is driven by a motor.
4. A vacuum combination valve as defined in claim 1, wherein: the periphery of the seat block is provided with external threads.
5. A vacuum combination valve as defined in claim 4, wherein: the seat block is in threaded connection with the nut.
6. A vacuum combination valve as defined in claim 1, wherein: the seat block is provided with a through hole communicated with the metal pipe.
7. A vacuum combination valve as claimed in claim 1, wherein: and a sealing element is arranged between the upper cover and the valve shaft.
8. A vacuum combination valve as defined in claim 1, wherein: and a sealing element is arranged between the flange piece and the valve body.
9. A vacuum combination valve as defined in claim 1, wherein: the vertical channel is provided with an inclined plane.
10. A vacuum combination valve as defined in claim 1, wherein: when the valve ball is opened, the ball is lapped on the inclined plane, and when the valve ball is closed, the top surface is supported below the ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210379150.2A CN114719043B (en) | 2022-04-12 | 2022-04-12 | Vacuum combination valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210379150.2A CN114719043B (en) | 2022-04-12 | 2022-04-12 | Vacuum combination valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114719043A true CN114719043A (en) | 2022-07-08 |
| CN114719043B CN114719043B (en) | 2024-02-13 |
Family
ID=82243526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210379150.2A Active CN114719043B (en) | 2022-04-12 | 2022-04-12 | Vacuum combination valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114719043B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2178483A5 (en) * | 1972-03-29 | 1973-11-09 | Alsthom Cgee | |
| US8601634B1 (en) * | 2012-07-13 | 2013-12-10 | Gerald A. Stunkard | Pig valve having trunnion supported ball, self-centering seats and universal type mounting flanges |
| CN105782481A (en) * | 2016-04-01 | 2016-07-20 | 同济大学 | Underwater fluid collecting valve |
| WO2020197447A2 (en) * | 2019-03-26 | 2020-10-01 | Владимир Федорович Семенов | Ballcock-valve |
| CN111810670A (en) * | 2020-07-31 | 2020-10-23 | 衡阳泰豪通信车辆有限公司 | Fluid control equipment for shelter |
| CN112096906A (en) * | 2020-07-27 | 2020-12-18 | 西安交通大学 | Telescopic frictionless ball valve driven by cooperation of linear motor and rotating motor |
| CN215521417U (en) * | 2021-04-30 | 2022-01-14 | 赵芮钒 | Ultra-low temperature liquid transfer device |
-
2022
- 2022-04-12 CN CN202210379150.2A patent/CN114719043B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2178483A5 (en) * | 1972-03-29 | 1973-11-09 | Alsthom Cgee | |
| US8601634B1 (en) * | 2012-07-13 | 2013-12-10 | Gerald A. Stunkard | Pig valve having trunnion supported ball, self-centering seats and universal type mounting flanges |
| CN105782481A (en) * | 2016-04-01 | 2016-07-20 | 同济大学 | Underwater fluid collecting valve |
| WO2020197447A2 (en) * | 2019-03-26 | 2020-10-01 | Владимир Федорович Семенов | Ballcock-valve |
| CN112096906A (en) * | 2020-07-27 | 2020-12-18 | 西安交通大学 | Telescopic frictionless ball valve driven by cooperation of linear motor and rotating motor |
| CN111810670A (en) * | 2020-07-31 | 2020-10-23 | 衡阳泰豪通信车辆有限公司 | Fluid control equipment for shelter |
| CN215521417U (en) * | 2021-04-30 | 2022-01-14 | 赵芮钒 | Ultra-low temperature liquid transfer device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114719043B (en) | 2024-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201323510Y (en) | Skewed stator core slot lamination tooling | |
| CN103867737B (en) | Guide rail vacuum connection rod gate valve | |
| CN103453699A (en) | Electronic expansion valve | |
| CN103388939A (en) | Electronic expansion valve | |
| CN114713671A (en) | Vehicle-mounted cabinet forming method | |
| CN207598940U (en) | A kind of pilot solenoid valve | |
| CN114719043A (en) | Vacuum combination valve | |
| CN114700408A (en) | Vacuum-pumping system | |
| CN107738016A (en) | Flange gear shaping fixture | |
| CN111023872B (en) | High-efficiency energy-saving horizontal heat exchanger | |
| CN213878846U (en) | High-low voltage switch cabinet convenient to installation | |
| CN201723807U (en) | Magnetic gas timing valve | |
| CN201202876Y (en) | Hydraulic transmission device of rapid cut-off valve | |
| CN205328152U (en) | Transfer device on solar wafer processing equipment | |
| CN107345595B (en) | Built-in quick-closing motor valve of intelligent gas meter | |
| CN204321001U (en) | The inner reed of a kind of fuel sucking pipe detects and corrects and mouth of pipe closing device | |
| CN208653224U (en) | A kind of curing oven UTILIZATION OF VESIDUAL HEAT IN mechanism of SMT production | |
| CN208439867U (en) | A kind of emergency stop formula diode frame push structure | |
| CN206938033U (en) | A kind of pneumatic stamping machine | |
| CN203471694U (en) | Assembly tooling with skeleton centerline rubber lined butterfly valve seat | |
| CN214998543U (en) | Multi-angle adjustable cylinder | |
| CN202423243U (en) | Sucking disc device for transferring semiconductor crystal grains on graphite boat | |
| CN209698897U (en) | A kind of valve body verification clamping lock | |
| CN204677794U (en) | A kind of gas utensil electric flow control valve | |
| CN2767905Y (en) | Water controller for water storage type water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |