CN213206641U - Pneumatic diaphragm valve and pipeline system - Google Patents
Pneumatic diaphragm valve and pipeline system Download PDFInfo
- Publication number
- CN213206641U CN213206641U CN202021668476.XU CN202021668476U CN213206641U CN 213206641 U CN213206641 U CN 213206641U CN 202021668476 U CN202021668476 U CN 202021668476U CN 213206641 U CN213206641 U CN 213206641U
- Authority
- CN
- China
- Prior art keywords
- diaphragm valve
- diaphragm
- pneumatic
- base
- alarm
- 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.)
- Active
Links
Images
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model discloses a pneumatic diaphragm valve and a pipeline system, relating to the medium conveying field; the pneumatic diaphragm valve comprises a diaphragm valve base, the diaphragm valve base is provided with a fluid inlet and a fluid outlet, and a medium channel is formed between the fluid inlet and the fluid outlet; the base of the diaphragm valve is connected with a diaphragm for blocking a medium channel, and the diaphragm is connected with a pneumatic device; and one side of the pneumatic device, which is far away from the diaphragm, is provided with an induction alarm device. The pipeline system comprises a medium input device and an execution device, and the pneumatic diaphragm valve is connected between the medium input device and the execution device. When the medium channel needs to be communicated, gas is introduced into the pneumatic device, so that the diaphragm does not block the medium channel; when gas input is not enough, the diaphragm moving distance is reduced, the sensing alarm device can send out an alarm in time, the working personnel can know that the diaphragm valve is abnormal in time, medium blockage is avoided, equipment loss and personnel injury are avoided, and potential safety hazards are eliminated.
Description
Technical Field
The utility model relates to a pipeline transportation technical field especially relates to a pneumatic diaphragm valve and pipe-line system.
Background
In many fields, pipeline transportation is the key point of production line design, which is one of the cores of industrial water treatment in the fields of biopharmaceutical, food, industry, electricity, chemical, and electroplating, or in the production of semiconductor wafers.
The diaphragm valve is an important part for pipeline transportation, the diaphragm valve is a cut-off valve in a special form, and the opening and closing part of the diaphragm valve is a diaphragm made of soft materials, and the diaphragm separates the inner cavity of the valve body from the inner cavity of the valve cover and the driving part, so that parts above the diaphragm are not corroded by media.
Diaphragm valve among the prior art can cause the medium to carry not in good order under the not enough condition of input atmospheric pressure, and then arouse the medium jam, and the staff can't in time notice the input atmospheric pressure of diaphragm valve again not enough, in case the medium jam is to a certain extent, can lead to equipment loss and personnel injured's condition to take place, has very big potential safety hazard.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pneumatic diaphragm valve and pipe-line system solve the unable not enough problem of input atmospheric pressure who perceives the diaphragm valve of present staff.
To achieve the purpose, the utility model adopts the following technical proposal:
a pneumatic diaphragm valve comprises a diaphragm valve base, wherein a fluid inlet and a fluid outlet are formed in the diaphragm valve base, and a medium channel is formed between the fluid inlet and the fluid outlet;
the diaphragm valve base is connected with a diaphragm for blocking the medium channel, and the diaphragm is connected with a pneumatic device for leading the diaphragm not to block the medium channel after gas is introduced;
and one side of the pneumatic device, which is far away from the diaphragm, is provided with a sensing alarm device for giving an alarm when the pneumatic device is filled with gas and the moving distance of the diaphragm is insufficient.
Optionally, the inductive alarm device comprises an inductive base, and the inductive base is fixedly connected with the pneumatic device; the pneumatic device comprises a piston rod fixedly connected with the diaphragm;
a signal feedback circuit board and a touch switch used for sending a normal touch signal to the signal feedback circuit board when the pneumatic device is touched by the piston rod after gas is introduced into the pneumatic device are arranged in the induction base;
the signal feedback circuit board is also electrically connected with an alarm piece used for giving an alarm when the touch switch is not touched.
Optionally, the alarm is a signal feedback lamp, and the signal feedback lamp is arranged in the induction base;
the sensing base comprises a transparent cover plate used for transmitting the optical signal sent by the signal feedback lamp.
Optionally, the pneumatic device comprises a diaphragm valve upper cover fixedly connected with the diaphragm valve base;
a piston rod is connected in the upper cover of the diaphragm valve in a sliding manner, and one end of the piston rod is fixedly connected with the diaphragm;
a pressure plate shaft sleeve is fixedly connected in the diaphragm valve upper cover, the piston rod is connected with the pressure plate shaft sleeve in a sliding manner, and an air cavity is formed between the piston rod and the pressure plate shaft sleeve;
and the diaphragm valve upper cover is provided with an air hole communicated with the air cavity.
Optionally, the piston rod includes a rod portion and a sealing portion, the sealing portion is convexly disposed along an outer wall of the rod portion to extend in a circumferential direction thereof and forms the air cavity with the platen shaft sleeve;
the pressing plate shaft sleeve is provided with a through hole corresponding to the position of the rod part, and the rod part penetrates through the through hole.
Optionally, the outer wall of the sealing part is provided with a first sealing groove; the pressing plate shaft sleeve is provided with a second sealing groove; the rod part is provided with a third sealing groove;
annular rubber rings are sleeved in the first sealing groove, the second sealing groove and the third sealing groove, and the annular rubber rings sleeved in the first sealing groove and the second sealing groove are abutted against the inner wall of the upper cover of the diaphragm valve; and the annular rubber ring sleeved on the third sealing groove is abutted against the inner wall of the through hole of the pressing plate shaft sleeve.
Optionally, a spring is sleeved on one side, away from the pressure plate shaft sleeve, of the sealing portion of the rod portion, one end of the spring abuts against the sealing portion, and the other end of the spring abuts against the inner wall of the diaphragm valve upper cover.
Optionally, the diaphragm valve base is provided with a control port, the edge portion of the diaphragm is fixedly connected with the diaphragm valve base, and the central portion of the diaphragm movably penetrates through the control port; a valve body weir is convexly arranged on the inner wall of the diaphragm valve base towards the direction close to the control port;
when the pneumatic device is not filled with gas, the diaphragm and the valve body weir block the medium channel.
A pipeline system comprises a medium input device and an execution device, wherein the pneumatic diaphragm valve is connected between the medium input device and the execution device;
the fluid inlet of the pneumatic diaphragm valve is communicated with the medium input device, and the fluid outlet of the pneumatic diaphragm valve is communicated with the execution device.
Optionally, the pipeline system includes a main control board, and the main control board is electrically connected to the induction alarm device.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a pneumatic diaphragm valve and pipe-line system, when needs intercommunication medium passageway, let in gas toward the pneumatic means in, make the diaphragm not block medium passageway for the medium can flow between fluid inlet and fluid outlet, when gaseous input is not enough, lead to the diaphragm displacement to reduce, response alarm device can in time send out the police dispatch newspaper, make the staff in time know the diaphragm valve and take place the abnormal form, avoid the medium to block up, avoid equipment loss and personnel injured's condition to take place, the potential safety hazard has been eliminated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.
Fig. 1 is a schematic overall structural diagram of a pneumatic diaphragm valve according to an embodiment of the present invention;
fig. 2 is a schematic view of a first cross-sectional structure of a pneumatic diaphragm valve according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a second cross-sectional structure of a pneumatic diaphragm valve according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a third cross-sectional structure of a pneumatic diaphragm valve according to an embodiment of the present invention.
Illustration of the drawings: 1. a diaphragm valve base; 11. a fluid inlet; 12. a fluid outlet; 13. a control port; 14. A valve body weir; 2. a diaphragm;
3. a pneumatic device; 31. a diaphragm valve upper cover; 32. a piston rod; 321. a rod portion; 322. a sealing part; 33. A pressure plate shaft sleeve; 34. an air cavity; 35. air holes; 36. an annular rubber ring; 37. a spring;
4. a sensing alarm device; 41. an induction base; 411. a transparent cover plate; 42. a signal feedback circuit board; 43. a touch switch; 44. an alarm member; 45. a wire hole.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 4, fig. 1 is a schematic view of an overall structure of a pneumatic diaphragm valve according to an embodiment of the present invention, fig. 2 is a schematic view of a first cross-sectional structure of a pneumatic diaphragm valve according to an embodiment of the present invention, fig. 3 is a schematic view of a second cross-sectional structure of a pneumatic diaphragm valve according to an embodiment of the present invention, and fig. 4 is a schematic view of a third cross-sectional structure of a pneumatic diaphragm valve according to an embodiment of the present invention.
Example one
The pneumatic diaphragm valve provided by the embodiment is applied to industrial water treatment in industries such as biological pharmacy, food, industry, electric power, chemical industry and electroplating or applied to the production scene of semiconductor wafers, and when the pneumatic diaphragm valve cannot work normally, workers can be informed in time to eliminate potential safety hazards.
As shown in fig. 1 and fig. 2, the pneumatic diaphragm valve of the present embodiment includes a diaphragm valve base 1, the diaphragm valve base 1 is provided with a fluid inlet 11 and a fluid outlet 12, and a medium channel is formed between the fluid inlet 11 and the fluid outlet 12;
the diaphragm valve base 1 is connected with a diaphragm 2 for blocking a medium channel, and the diaphragm 2 is connected with a pneumatic device 3 for leading the diaphragm 2 not to block the medium channel after gas is introduced;
and a sensing alarm device 4 for giving an alarm when the pneumatic device 3 is filled with gas and the moving distance of the diaphragm 2 is insufficient is arranged on one side of the pneumatic device 3 far away from the diaphragm 2.
Specifically, when needing to communicate the medium passageway, let in gas in pneumatic means 3, make diaphragm 2 not block the medium passageway for the medium can flow between fluid inlet 11 and fluid outlet 12, when gaseous input is not enough, lead to diaphragm 2 displacement to reduce, response alarm device 4 can in time send out the police dispatch newspaper, makes the staff in time know that pneumatic diaphragm valve takes place the variation, avoids the medium to block up, avoids equipment loss and personnel injured's condition to take place, has eliminated the potential safety hazard.
Further, as shown in fig. 2 to 4, the sensing alarm device 4 includes a sensing base 41, and the sensing base 41 is fixedly connected with the pneumatic device 3; the pneumatic means 3 comprise a piston rod 32 fixedly connected to the diaphragm 2;
a signal feedback circuit board 42 and a touch switch 43 for sending a normal touch signal to the signal feedback circuit board 42 when the pneumatic device 3 is touched by the piston rod 32 after being inflated are arranged in the induction base 41;
the signal feedback circuit board 42 is also electrically connected with an alarm 44 for giving an alarm when the touch switch 43 is not touched.
It should be added that the induction base 41 is further provided with a wire hole 45, two 24V power wires and two signal feedback wires penetrate through the wire hole 45, the signal feedback wires are connected with the signal feedback circuit board 42 and the main control board, and signals generated by the feedback circuit board 42 are transmitted to the main control board. Specifically, as shown in fig. 3, when the medium channel needs to be communicated, the main control board sends a start signal to the signal feedback circuit board 42, if the gas is not introduced enough to make the diaphragm 2 still partially block the medium channel, the touch switch 43 is not touched by the piston rod 32, and then the signal feedback circuit board 42 sends an alarm signal to the main control board and makes the alarm piece 44 send an alarm if the signal feedback circuit board 42 does not receive a normal touch signal for a certain time. As shown in fig. 4, when the medium channel needs to be communicated, the main control board sends a start signal to the signal feedback circuit board 42, if the gas is introduced normally, the diaphragm 2 does not block the medium channel, at this time, the touch switch 43 is touched by the piston rod 32 to send a normal touch signal to the signal feedback circuit board 42, and the signal feedback circuit board sends a normal signal to the main control board and starts the prompt lamp for prompting normal.
It should be added that other alarm modes exist in the sensing alarm device 4, for example, a photoelectric sensor is used to replace the touch switch 43, and a photoelectric sensor is arranged at the position where the piston rod 32 reaches when the medium channel is communicated, for example, when the medium channel needs to be communicated, the main control board sends a start signal to the signal feedback circuit board 42, if the gas is not introduced enough to make the diaphragm 2 still partially block the medium channel, the photoelectric sensor does not detect the piston rod 32, and then the signal feedback circuit board 42 does not receive the signal sent by the photoelectric sensor for a certain time, and sends an alarm signal to the main control board, and the alarm piece 44 sends an alarm. An infrared distance meter can be used to replace the touch switch 43, the infrared distance meter is disposed at one end of the sensing base 41 far away from the diaphragm 2, for example, when the medium channel needs to be communicated, the main control board sends a start signal to the signal feedback circuit board 42, if the gas is not enough to make the diaphragm 2 still partially block the medium channel, the infrared distance meter continuously measures the position of the piston rod 32 and continuously sends a position signal of the piston rod 32 to the signal feedback circuit board 42, and then the signal feedback circuit board 42 still does not receive a correct position signal after a certain time, and sends an alarm signal to the main control board and makes the alarm piece 44 send an alarm.
In one particular implementation, as shown in fig. 2, the alarm 44 is a signal feedback light disposed within the sensing base 41;
the sensing base 41 includes a transparent cover 411 for feeding back the light signal emitted from the lamp through the signal. It should be added that the alarm 44 may also be a buzzer.
Further, as shown in fig. 2, the pneumatic device 3 includes a diaphragm valve upper cover 31 fixedly connected to the diaphragm valve base 1;
a piston rod 32 is connected in the diaphragm valve upper cover 31 in a sliding manner, and one end of the piston rod 32 is fixedly connected with the diaphragm 2; wherein, the piston rod 32 is fixedly connected with the diaphragm 2 through a bolt;
a pressure plate shaft sleeve 33 is fixedly connected in the diaphragm valve upper cover 31, the piston rod 32 is connected with the pressure plate shaft sleeve 33 in a sliding manner, and an air cavity 34 is formed between the piston rod 32 and the pressure plate shaft sleeve 33;
the diaphragm valve upper cover 31 is provided with an air hole 35 communicated with the air cavity 34.
It should be noted that the diaphragm 2 separates the medium channel from the diaphragm valve upper cover 31, so that the parts such as the piston rod 32, the pressure plate shaft sleeve 33 and the like above the diaphragm 2 are not corroded by the medium, the packing sealing structure is omitted, and the medium is not leaked.
Further, the piston rod 32 includes a rod portion 321 and a sealing portion 322, the sealing portion 322 extends along the outer wall of the rod portion 321 to the peripheral direction thereof and forms an air cavity 34 with the platen sleeve 33;
the pressing plate shaft sleeve 33 is provided with a through hole corresponding to the rod portion 321, and the rod portion 321 penetrates through the through hole.
Further, a first sealing groove is formed in the outer wall of the sealing part 322; the pressing plate shaft sleeve 33 is provided with a second sealing groove; the rod 321 is provided with a third sealing groove;
annular rubber rings 36 are sleeved in the first sealing groove, the second sealing groove and the third sealing groove, and the annular rubber rings 36 sleeved in the first sealing groove and the second sealing groove are abutted against the inner wall of the diaphragm valve upper cover 31; the annular rubber ring 36 sleeved on the third seal groove is abutted against the inner wall of the through hole of the pressure plate shaft sleeve 33.
Wherein, annular rubber ring 36 is annular fluorine rubber ring, and its leakproofness is strong.
Further, the rod 321 is provided with a spring 37 on a side of the seal 322 away from the platen bushing 33, and one end of the spring 37 abuts against the seal 322 and the other end abuts against the inner wall of the diaphragm valve upper cover 31.
Furthermore, the diaphragm valve base 1 is provided with a control port 13, the edge part of the diaphragm 2 is fixedly connected with the diaphragm valve base 1, and the central part of the diaphragm 2 movably penetrates through the control port; a valve body weir 14 is convexly arranged on the inner wall of the diaphragm valve base 1 towards the direction close to the control port 13;
when the pneumatic device 3 is not aerated, the diaphragm 2 and the valve body weir 14 block the medium channel.
Illustratively, the pneumatic diaphragm valve operates on the following principle: the pneumatic diaphragm valve is normally closed, when communication is required, air is introduced into the air cavity 34 through the air hole 35, so that the pressure is increased, the piston rod 32 overcomes the elastic force of the spring 37 to move in the direction away from the medium channel, and the diaphragm 2 is driven to move, so that the medium channel is not blocked by the diaphragm 2. As shown in fig. 4, if the pneumatic diaphragm valve works normally, the touch switch 34 is touched to send a touch normal signal to the signal feedback circuit board 42, and at this time, the signal feedback circuit board 42 sends a touch normal signal to the main control board and simultaneously activates the warning lamp to prompt the pneumatic diaphragm valve to work normally. As shown in fig. 3, if the pneumatic diaphragm valve cannot work normally, so that the diaphragm 2 still partially or completely blocks the medium channel, the touch switch 34 is not touched, and when a certain time is exceeded, the signal feedback circuit board 42 will make the alarm 44 start to alarm outwards, and send an alarm signal to the main control board.
In conclusion, the pneumatic diaphragm valve of the embodiment can timely find the problem of insufficient ventilation, avoid medium blockage and eliminate potential safety hazards.
Example two
The pipeline system of the embodiment comprises a medium input device and an execution device, wherein the pneumatic diaphragm valve in the first embodiment is connected between the medium input device and the execution device; the fluid inlet 11 of the pneumatic diaphragm valve communicates with the media input device and the fluid outlet 12 of the pneumatic diaphragm valve communicates with the actuation device. The embodiment describes a specific structure of the pneumatic diaphragm valve, and the pipeline system of the embodiment adopts the pneumatic diaphragm valve, and has the same technical effect.
Further, the pipeline system comprises a main control board which is electrically connected with the induction alarm device 4. The main control board is a PLC (Programmable Logic Controller).
In conclusion, the pipeline system of the embodiment can timely find the problem of insufficient ventilation, avoid medium blockage and eliminate potential safety hazards.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A pneumatic diaphragm valve is characterized by comprising a diaphragm valve base (1), wherein the diaphragm valve base (1) is provided with a fluid inlet (11) and a fluid outlet (12), and a medium channel is formed between the fluid inlet (11) and the fluid outlet (12);
the diaphragm valve base (1) is connected with a diaphragm (2) for blocking the medium channel, and the diaphragm (2) is connected with a pneumatic device (3) for leading the diaphragm (2) not to block the medium channel after gas is introduced;
and a sensing alarm device (4) for giving an alarm when the pneumatic device (3) is filled with gas and the moving distance of the diaphragm (2) is short is arranged on one side of the pneumatic device (3) far away from the diaphragm (2).
2. A pneumatic diaphragm valve according to claim 1, wherein said inductive alarm device (4) comprises an inductive base (41), said inductive base (41) being fixedly connected to said pneumatic device (3); the pneumatic device (3) comprises a piston rod (32) fixedly connected with the diaphragm (2);
a signal feedback circuit board (42) and a touch switch (43) used for sending a normal touch signal to the signal feedback circuit board (42) when the pneumatic device (3) is touched by the piston rod (32) after gas is introduced into the induction base (41);
the signal feedback circuit board (42) is also electrically connected with an alarm piece (44) for giving an alarm outwards when the touch switch (43) is not touched.
3. The pneumatic diaphragm valve of claim 2 wherein the alarm (44) is a signal feedback light disposed within the sensing base (41);
the sensing base (41) comprises a transparent cover plate (411) for transmitting the light signal emitted by the signal feedback lamp.
4. A pneumatic diaphragm valve according to claim 1, wherein the pneumatic means (3) comprises a diaphragm valve upper cover (31) fixedly connected to the diaphragm valve base (1);
a piston rod (32) is connected in the diaphragm valve upper cover (31) in a sliding manner, and one end of the piston rod (32) is fixedly connected with the diaphragm (2);
a pressure plate shaft sleeve (33) is fixedly connected in the diaphragm valve upper cover (31), the piston rod (32) is connected with the pressure plate shaft sleeve (33) in a sliding manner, and an air cavity (34) is formed between the piston rod (32) and the pressure plate shaft sleeve (33);
the diaphragm valve upper cover (31) is provided with an air hole (35) communicated with the air cavity (34).
5. The pneumatic diaphragm valve of claim 4, wherein the piston rod (32) includes a rod portion (321) and a seal portion (322), the seal portion (322) being provided convexly along an outer wall of the rod portion (321) in a circumferential direction thereof and forming the air chamber (34) with the platen boss (33);
the pressing plate shaft sleeve (33) is provided with a through hole corresponding to the position of the rod part (321), and the rod part (321) penetrates through the through hole.
6. The pneumatic diaphragm valve of claim 5, wherein the outer wall of the sealing portion (322) is provided with a first sealing groove; the pressing plate shaft sleeve (33) is provided with a second sealing groove; the rod part (321) is provided with a third sealing groove;
annular rubber rings (36) are sleeved in the first sealing groove, the second sealing groove and the third sealing groove, and the annular rubber rings (36) sleeved in the first sealing groove and the second sealing groove are abutted to the inner wall of the diaphragm valve upper cover (31); and an annular rubber ring (36) sleeved on the third sealing groove is abutted against the inner wall of the through hole of the pressure plate shaft sleeve (33).
7. The pneumatic diaphragm valve of claim 5, wherein the rod portion (321) is sleeved with a spring (37) on a side of the sealing portion (322) away from the pressure plate boss (33), one end of the spring (37) abuts against the sealing portion (322), and the other end abuts against an inner wall of the diaphragm valve upper cover (31).
8. The pneumatic diaphragm valve of claim 4, wherein the diaphragm valve base (1) is provided with a control port (13), the edge portion of the diaphragm (2) is fixedly connected with the diaphragm valve base (1), and the central portion of the diaphragm (2) is movably inserted through the control port; a valve body weir (14) is convexly arranged on the inner wall of the diaphragm valve base (1) towards the direction close to the control port (13);
when the pneumatic device (3) is not filled with gas, the diaphragm (2) and the valve body weir (14) cut off the medium channel.
9. A piping system comprising a medium input device and an execution device, wherein the pneumatic diaphragm valve of any one of claims 1-8 is connected between the medium input device and the execution device;
the fluid inlet (11) of the pneumatic diaphragm valve is communicated with the medium input device, and the fluid outlet (12) of the pneumatic diaphragm valve is communicated with the execution device.
10. Piping system according to claim 9, characterized in that it comprises a main control board electrically connected to said inductive alarm device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021668476.XU CN213206641U (en) | 2020-08-12 | 2020-08-12 | Pneumatic diaphragm valve and pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021668476.XU CN213206641U (en) | 2020-08-12 | 2020-08-12 | Pneumatic diaphragm valve and pipeline system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213206641U true CN213206641U (en) | 2021-05-14 |
Family
ID=75839145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021668476.XU Active CN213206641U (en) | 2020-08-12 | 2020-08-12 | Pneumatic diaphragm valve and pipeline system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213206641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116498799A (en) * | 2023-06-25 | 2023-07-28 | 成都川力智能流体设备股份有限公司 | Household intelligent full-effect safety device |
-
2020
- 2020-08-12 CN CN202021668476.XU patent/CN213206641U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116498799A (en) * | 2023-06-25 | 2023-07-28 | 成都川力智能流体设备股份有限公司 | Household intelligent full-effect safety device |
| CN116498799B (en) * | 2023-06-25 | 2023-08-29 | 成都川力智能流体设备股份有限公司 | Household intelligent full-effect safety device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213206641U (en) | Pneumatic diaphragm valve and pipeline system | |
| US4406303A (en) | Gate valve with position indicator | |
| US20200355204A1 (en) | Over-pressure protection system | |
| WO2014078085A1 (en) | Combination diaphragm piston actuator | |
| US4176617A (en) | Low pressure alarm | |
| JP4809342B2 (en) | Valve condition monitoring method | |
| CN102648354A (en) | Fluid operated actuator | |
| CN203906980U (en) | Air-control two-way lock valve | |
| CN210035087U (en) | Pipeline pressure measuring device | |
| US11719358B2 (en) | Switch for diaphragm valve actuator | |
| CN107378633A (en) | Machining center cutting fluid Automatic Provisioning System | |
| CN217402064U (en) | Mechanical full-automatic gulp valve | |
| CN205350444U (en) | Gaseous automatic switch -over machine | |
| CN211176326U (en) | Novel air pressure switch device | |
| CN212536821U (en) | Mechanical active explosion-proof device | |
| CN103994265A (en) | Novel two-way locking valve | |
| CN213018006U (en) | Pneumatic explosion-proof straight-cylinder actuator | |
| CN202100784U (en) | Membrane type pressure retaining valve | |
| CN106197900B (en) | Airtight somascope | |
| CN203823084U (en) | Sea valve of oil tank | |
| CN217763016U (en) | Positive pressure type pneumatic safety door entrance guard detection mechanism | |
| CN104565519A (en) | Low-power-consumption reed type valve position transducer and control method thereof | |
| CN218761671U (en) | Use state warning device for gas self-closing valve and gas self-closing valve | |
| CN217976559U (en) | Diaphragm pump valve | |
| CN110634652A (en) | Automatic oil supplementing device for transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |