CN112145780A - High-temperature-resistant electromagnetic valve special for rubber and plastic machinery - Google Patents
High-temperature-resistant electromagnetic valve special for rubber and plastic machinery Download PDFInfo
- Publication number
- CN112145780A CN112145780A CN202011056311.1A CN202011056311A CN112145780A CN 112145780 A CN112145780 A CN 112145780A CN 202011056311 A CN202011056311 A CN 202011056311A CN 112145780 A CN112145780 A CN 112145780A
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- China
- Prior art keywords
- cover plate
- ring
- magnetic ring
- upper cover
- sealing ring
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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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- 239000004033 plastic Substances 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 230000002940 repellent Effects 0.000 claims abstract description 4
- 239000005871 repellent Substances 0.000 claims abstract description 4
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 8
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply 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
- F16K27/00—Construction of housing; Use of materials 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
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a high-temperature-resistant electromagnetic valve special for rubber and plastic machinery, which comprises a lower cover plate and an upper cover plate, wherein screw holes are formed in four corners of the surfaces of the lower cover plate and the upper cover plate, limiting columns penetrate through the inner sides of the screw holes, an annular groove is formed in the top surface of the upper cover plate and positioned at the edge of the screw holes, a magnetic ring A is installed at the bottom of the inner side of the annular groove, a magnetic ring B is sleeved on the surface of each limiting column, the magnetic rings B and the magnetic ring A are in repellent distribution, and a limiting pin penetrates through the bottom of each limiting column; through the designed magnetic ring and the limiting pin, the existing bolt connection mode can be abandoned during installation, so that the assembly and disassembly are very convenient on the basis of ensuring the stable installation, and meanwhile, any external equipment is not needed for assisting assembly and disassembly, so that the flexibility in use is improved; through the sealing ring of design, can increase the sealing performance of being connected of upper cover plate and lower apron in the installation, avoid producing the phenomenon of seepage because of the clearance of junction in the later stage.
Description
Technical Field
The invention belongs to the technical field of electromagnetic valves, and particularly relates to a high-temperature-resistant electromagnetic valve special for rubber and plastic machinery.
Background
The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured. The electromagnetic valves are various, and different electromagnetic valves play roles in different positions of a control system, the most common electromagnetic valves are one-way valves, safety valves, direction control valves, speed regulating valves and the like, and the electromagnetic valves are wide in application range, wherein the electromagnetic valves are also used in rubber and plastic machinery, the rubber and plastic machinery refers to general machinery for manufacturing and processing rubber and plastic products, and the rubber and plastic machinery comprises rubber special machinery and plastic special machinery.
The existing electromagnetic valve needs to be fixed through a bolt in installation, connection stability is guaranteed, however, more time needs to be consumed in installation and later maintenance and disassembly, working efficiency is low, and meanwhile, in frequent disassembly and assembly, the phenomenon of tooth rotting at a threaded connection part is easily caused, connection is unstable, and meanwhile, the maintenance difficulty is high.
Disclosure of Invention
The invention aims to provide a special high-temperature-resistant electromagnetic valve for rubber and plastic machinery, which is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a special solenoid valve of high temperature resistant rubber and plastic machinery, includes lower cover plate and upper cover plate, the screw has been seted up to the surperficial four corners department of lower cover plate and upper cover plate, the inboard of screw runs through there is spacing post, the top surface of upper cover plate and the edge that is in the screw have seted up the ring channel, magnetic ring A is installed to the inboard bottom of ring channel, the surface cover of spacing post is equipped with magnetic ring B, magnetic ring B and magnetic ring A are the form of repulsion and distribute, spacing round pin has been run through to the bottom of spacing post, the top face of spacing round pin closely laminates with the bottom face of lower cover plate.
Preferably, one end cover of spacer pin is equipped with the lantern ring, the lantern ring is fixed in the bottom surface of apron down, the lantern ring is C type structure, just the spacer pin is L type structure.
Preferably, the magnetic ring A and the magnetic ring B are in the same-pole repulsion state, and the thicknesses of the magnetic ring A and the magnetic ring B are equal.
Preferably, an outer sealing ring in a square-shaped structure is fixed on the bottom surface of the upper cover plate, an inner sealing ring in the square-shaped structure is also arranged on the inner side of the outer sealing ring, and a groove for clamping and connecting the inner sealing ring and the outer sealing ring is formed in the top surface of the lower cover plate.
Preferably, the inner sealing ring and the outer sealing ring are silica gel members, and the height of the inner sealing ring and the height of the outer sealing ring are twice of one point of the year on the groove.
Preferably, the bottom tube is installed to the bottom of apron down, the one end of bottom tube is the feed inlet, and the other end is the discharge gate, and the inner wall department of this discharge gate is formed with the backwash tank, the backwash tank is descending form by the middle part of discharge gate tip to bottom tube.
Preferably, the top of upper cover plate is installed electromagnetic assembly, electromagnetic assembly's bottom is installed and is run through to the spacing subassembly of bottom pipe bottom inner wall.
Preferably, the diameter of the limiting component is equal to the inner diameter of the bottom pipe, and a sealing ring is arranged at the edge of the limiting component
Compared with the prior art, the invention has the beneficial effects that:
1. through the designed magnetic ring and the limiting pin, the existing bolt connection mode can be abandoned during installation, so that the assembly and disassembly are very convenient on the basis of ensuring the stable installation, and meanwhile, any external equipment is not needed for assisting assembly and disassembly, so that the flexibility in use is improved;
2. by the designed sealing ring, the connection sealing performance of the upper cover plate and the lower cover plate can be improved during installation, and the phenomenon of leakage caused by gaps at the connection position in the later period is avoided;
3. through the designed reflux groove, liquid on the inner side of the discharge port can be refluxed when liquid supply is stopped, so that the influence on processing quality caused by excessive injection of residual liquid is avoided, and the normal operation of work is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the upper cover plate and the lower cover plate according to the present invention;
FIG. 3 is an enlarged view of area A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of area B of FIG. 3 according to the present invention;
FIG. 5 is a bottom view of the upper cover plate of the present invention;
FIG. 6 is a cross-sectional view of the bottom tube discharge port of the present invention.
In the figure: 1. a lower cover plate; 2. a bottom tube; 3. an upper cover plate; 4. an electromagnetic assembly; 5. a limiting column; 6. an annular groove; 7. a magnetic ring A; 8. a magnetic ring B; 9. a spacing pin; 10. a collar; 11. a screw hole; 12. an inner seal ring; 13. an outer seal ring; 14. a reflux tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a special solenoid valve of high temperature resistant rubber and plastic machinery, including lower cover plate 1 and upper cover plate 3, screw 11 has been seted up to the surperficial four corners department of lower cover plate 1 and upper cover plate 3, spacing post 5 has been run through to the inboard of screw 11, ring channel 6 has been seted up just to the edge that is in screw 11 on the top surface of upper cover plate 3, magnetic ring A7 is installed to the inboard bottom of ring channel 6, the surface cover of spacing post 5 is equipped with magnetic ring B8, magnetic ring B8 is the repellent form distribution with magnetic ring A7, spacing pin 9 has been run through to the bottom of spacing post 5, through the magnetic ring and the spacer pin 9 of design, can be in the installation, abandon current bolted connection's mode, make on guaranteeing the installation stability basis, the dismouting is all very convenient, need not any external equipment to assist the dismouting simultaneously, the flexibility of getting up is promoted, the top face of spacer pin 9.
In this embodiment, preferably, one end of the limit pin 9 is sleeved with a collar 10, the collar 10 is fixed on the bottom surface of the lower cover plate 1, the collar 10 is of a C-shaped structure, and the limit pin 9 is of an L-shaped structure.
In this embodiment, preferably, the magnetic ring a7 and the magnetic ring B8 are in the same polarity and repulsion, and the thicknesses of the two are equal.
In this embodiment, preferably, electromagnetic component 4 is installed at the top of upper cover plate 3, and the spacing subassembly that runs through to bottom pipe 2 bottom inner wall is installed to the bottom of electromagnetic component 4, and the diameter of spacing subassembly equals for the internal diameter of bottom pipe 2, and the edge of spacing subassembly installs the sealing washer.
Example 2
Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides a special solenoid valve of high temperature resistant rubber and plastic machinery, including lower cover plate 1 and upper cover plate 3, screw 11 has been seted up to the surperficial four corners department of lower cover plate 1 and upper cover plate 3, spacing post 5 has been run through to the inboard of screw 11, ring channel 6 has been seted up just to the edge that is in screw 11 on the top surface of upper cover plate 3, magnetic ring A7 is installed to the inboard bottom of ring channel 6, the surface cover of spacing post 5 is equipped with magnetic ring B8, magnetic ring B8 is the repellent form distribution with magnetic ring A7, spacing pin 9 has been run through to the bottom of spacing post 5, through the magnetic ring and the spacer pin 9 of design, can be in the installation, abandon current bolted connection's mode, make on guaranteeing the installation stability basis, the dismouting is all very convenient, need not any external equipment to assist the dismouting simultaneously, the flexibility of getting up is promoted, the top face of spacer pin 9.
In this embodiment, preferably, one end of the limit pin 9 is sleeved with a collar 10, the collar 10 is fixed on the bottom surface of the lower cover plate 1, the collar 10 is of a C-shaped structure, and the limit pin 9 is of an L-shaped structure.
In this embodiment, preferably, the magnetic ring a7 and the magnetic ring B8 are in the same polarity and repulsion, and the thicknesses of the two are equal.
In this embodiment, preferably, the bottom surface of the upper cover plate 3 is fixed with an outer sealing ring 13 having a structure like a Chinese character 'kou', the inner side of the outer sealing ring 13 is also provided with an inner sealing ring 12 having a structure like a Chinese character 'kou', and by means of the designed sealing ring 12, the connection sealing performance between the upper cover plate 3 and the lower cover plate 1 can be increased during installation, so that the phenomenon of leakage caused by a gap at a joint in a later period is avoided, and the top surface of the lower cover plate 1 is provided with a groove for clamping and connecting the inner sealing ring 12 and the outer sealing ring 13.
In this embodiment, preferably, the inner seal ring 12 and the outer seal ring 13 are both made of a silicone material, and the height of the inner seal ring 12 and the height of the outer seal ring 13 are twice of a little of the year on the groove.
In this embodiment, preferably, the bottom tube 2 is installed at the bottom of the lower cover plate 1, one end of the bottom tube 2 is a feed inlet, the other end of the bottom tube is a discharge outlet, a backflow groove 14 is formed at the inner wall of the discharge outlet, and the backflow groove 14 is designed to enable liquid inside the discharge outlet to flow back when the liquid supply is stopped, so that the influence on the processing quality due to excessive injection of the residual liquid is avoided, the normal operation of the operation is ensured, and the backflow groove 14 is in a descending shape from the end of the discharge outlet to the middle of the bottom tube 2.
In this embodiment, preferably, electromagnetic component 4 is installed at the top of upper cover plate 3, and the spacing subassembly that runs through to bottom pipe 2 bottom inner wall is installed to the bottom of electromagnetic component 4, and the diameter of spacing subassembly equals for the internal diameter of bottom pipe 2, and the edge of spacing subassembly installs the sealing washer.
The working principle and the using process of the invention are as follows: when the invention is used, the lower cover plate 1 and the upper cover plate 3 are firstly installed, in the installation, the inner sealing ring 12 and the outer sealing ring 13 at the bottom of the upper cover plate 3 are firstly inserted into the groove on the top surface of the lower cover plate 1, then the limiting post 5 penetrates through the screw hole 11, the limiting post 5 is continuously extruded in the penetration process until the bottom end of the limiting post 5 can be penetrated through by the limiting pin 9, at the moment, the limiting pin 9 is pushed to ensure that the limiting post 5 is penetrated through by the limiting pin 9, in the movement of the limiting pin 9, the support and the movement are carried out through the lantern ring 10, after the limiting pin 9 penetrates through, the magnetic ring B8 and the magnetic ring A7 rebound through repulsive force, so that the limiting post 5 is shifted upwards, the bottom end of the limiting post 5 is limited by the limiting pin 9, so as to finish the fastening, in the normal use, when the material injection is not needed, the internal channel of the bottom tube 2 is, at this time, the liquid at the inner part of the discharge hole of the bottom pipe 2 flows back to a certain degree through the backflow groove 14, so that more liquid is prevented from being continuously injected into the rubber and plastic machine.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a special solenoid valve of high temperature resistant rubber and plastic machinery, includes apron (1) and upper cover plate (3) down, screw (11) have been seted up with the surperficial four corners department of upper cover plate (3) down, spacing post (5), its characterized in that have been run through to the inboard of screw (11): the magnetic ring type magnetic bearing is characterized in that an annular groove (6) is formed in the top surface of the upper cover plate (3) and the edge of the screw hole (11), a magnetic ring A (7) is installed at the bottom of the inner side of the annular groove (6), a magnetic ring B (8) is sleeved on the surface of the limiting column (5), the magnetic ring B (8) and the magnetic ring A (7) are distributed in a repellent mode, a limiting pin (9) penetrates through the bottom of the limiting column (5), and the top end face of the limiting pin (9) is tightly attached to the bottom end face of the lower cover plate (1).
2. The special electromagnetic valve for high-temperature-resistant rubber and plastic machinery as claimed in claim 1, wherein: one end cover of spacer pin (9) is equipped with lantern ring (10), the bottom surface of apron (1) under lantern ring (10) is fixed, lantern ring (10) are C type structure, just spacer pin (9) are L type structure.
3. The special electromagnetic valve for high-temperature-resistant rubber and plastic machinery as claimed in claim 1, wherein: the magnetic ring A (7) and the magnetic ring B (8) are in the same-pole repulsion state, and the thicknesses of the magnetic ring A and the magnetic ring B are equal.
4. The special electromagnetic valve for high-temperature-resistant rubber and plastic machinery as claimed in claim 1, wherein: the bottom surface of the upper cover plate (3) is fixed with an outer sealing ring (13) in a square-shaped structure, the inner side of the outer sealing ring (13) is also provided with an inner sealing ring (12) in the square-shaped structure, and the top surface of the lower cover plate (1) is provided with a groove for clamping and connecting the inner sealing ring (12) and the outer sealing ring (13).
5. The special electromagnetic valve for high-temperature resistant rubber and plastic machinery as claimed in claim 4, wherein: the inner sealing ring (12) and the outer sealing ring (13) are silica gel material members, and the height of the inner sealing ring (12) and the outer sealing ring (13) is twice of one point of the year on the groove.
6. The special electromagnetic valve for high-temperature-resistant rubber and plastic machinery as claimed in claim 1, wherein: bottom tube (2) are installed to the bottom of apron (1) down, the one end of bottom tube (2) is the feed inlet, and the other end is the discharge gate, and the inner wall department of this discharge gate is formed with backwash tank (14), backwash tank (14) are the decline form by the middle part of discharge gate tip to bottom tube (2).
7. The special electromagnetic valve for high-temperature-resistant rubber and plastic machinery as claimed in claim 1, wherein: electromagnetic component (4) are installed at the top of upper cover plate (3), the spacing subassembly that runs through to bottom tube (2) bottom inner wall is installed to the bottom of electromagnetic component (4).
8. The special electromagnetic valve for high-temperature resistant rubber and plastic machinery as claimed in claim 7, wherein: the diameter of the limiting component is equal to the inner diameter of the bottom pipe (2), and a sealing ring is installed at the edge of the limiting component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011056311.1A CN112145780A (en) | 2020-09-29 | 2020-09-29 | High-temperature-resistant electromagnetic valve special for rubber and plastic machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011056311.1A CN112145780A (en) | 2020-09-29 | 2020-09-29 | High-temperature-resistant electromagnetic valve special for rubber and plastic machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112145780A true CN112145780A (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011056311.1A Pending CN112145780A (en) | 2020-09-29 | 2020-09-29 | High-temperature-resistant electromagnetic valve special for rubber and plastic machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112145780A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0135042A1 (en) * | 1983-07-26 | 1985-03-27 | Silo Verfahrens AG | Gate valve device |
| WO2008116358A1 (en) * | 2007-03-28 | 2008-10-02 | Hai Ying Group Of Aerospace Industry | An automatic sprinkling temperature controlling device |
| CN203797061U (en) * | 2014-04-22 | 2014-08-27 | 四川成都空分配套阀门有限公司 | Swing low temperature check valve |
| CN105059014A (en) * | 2015-08-02 | 2015-11-18 | 文成县简创科技有限公司 | Pen |
| KR20170068682A (en) * | 2015-12-09 | 2017-06-20 | 한국항공우주연구원 | Easy fastening bolt with spring and Port plate coupling structure |
| CN107725873A (en) * | 2016-08-10 | 2018-02-23 | 天津市奥德瑞标准件有限公司 | A kind of low noise pneumatic element |
| CN207539414U (en) * | 2017-12-11 | 2018-06-26 | 温州市来蚨阀门有限公司 | A kind of valve deck |
| CN208947882U (en) * | 2018-08-02 | 2019-06-07 | 天津晟霖瑞泰科技有限公司 | A kind of turnover box convenient for fixed cargo |
| CN209992082U (en) * | 2019-06-10 | 2020-01-24 | 佳源科技有限公司 | Temperature measurement sensor of micropower wireless communication |
| CN210218801U (en) * | 2019-01-26 | 2020-03-31 | 派利阀门科技有限公司 | Check valve with magnetic force for water channel |
| CN211358152U (en) * | 2019-10-23 | 2020-08-28 | 鞍钢实业集团冶金机械有限公司 | Backflow leak-proof maintenance device of wet dust collector |
-
2020
- 2020-09-29 CN CN202011056311.1A patent/CN112145780A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0135042A1 (en) * | 1983-07-26 | 1985-03-27 | Silo Verfahrens AG | Gate valve device |
| WO2008116358A1 (en) * | 2007-03-28 | 2008-10-02 | Hai Ying Group Of Aerospace Industry | An automatic sprinkling temperature controlling device |
| CN203797061U (en) * | 2014-04-22 | 2014-08-27 | 四川成都空分配套阀门有限公司 | Swing low temperature check valve |
| CN105059014A (en) * | 2015-08-02 | 2015-11-18 | 文成县简创科技有限公司 | Pen |
| KR20170068682A (en) * | 2015-12-09 | 2017-06-20 | 한국항공우주연구원 | Easy fastening bolt with spring and Port plate coupling structure |
| CN107725873A (en) * | 2016-08-10 | 2018-02-23 | 天津市奥德瑞标准件有限公司 | A kind of low noise pneumatic element |
| CN207539414U (en) * | 2017-12-11 | 2018-06-26 | 温州市来蚨阀门有限公司 | A kind of valve deck |
| CN208947882U (en) * | 2018-08-02 | 2019-06-07 | 天津晟霖瑞泰科技有限公司 | A kind of turnover box convenient for fixed cargo |
| CN210218801U (en) * | 2019-01-26 | 2020-03-31 | 派利阀门科技有限公司 | Check valve with magnetic force for water channel |
| CN209992082U (en) * | 2019-06-10 | 2020-01-24 | 佳源科技有限公司 | Temperature measurement sensor of micropower wireless communication |
| CN211358152U (en) * | 2019-10-23 | 2020-08-28 | 鞍钢实业集团冶金机械有限公司 | Backflow leak-proof maintenance device of wet dust collector |
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