CN219975562U - Electromagnetic valve capable of preventing backflow - Google Patents
Electromagnetic valve capable of preventing backflow Download PDFInfo
- Publication number
- CN219975562U CN219975562U CN202320718864.1U CN202320718864U CN219975562U CN 219975562 U CN219975562 U CN 219975562U CN 202320718864 U CN202320718864 U CN 202320718864U CN 219975562 U CN219975562 U CN 219975562U
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- Prior art keywords
- seat
- backflow
- piece
- shell
- sealing
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- 230000003405 preventing effect Effects 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000007704 transition Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 38
- 230000002265 prevention Effects 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Magnetically Actuated Valves (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a backflow-preventing electromagnetic valve, which comprises a valve body, wherein the valve body comprises a head transition piece, one end of the head transition piece is welded with a nozzle, and the other end of the head transition piece is connected with a backflow-preventing mechanism for preventing liquid from flowing back; the outlet nozzle connecting piece, the outlet nozzle connecting piece is installed on the head transition piece, and is used for leading liquid to the inside of the outlet nozzle connecting piece, the electromagnetic valve for preventing backflow is formed by arranging the valve body into the head transition piece, the outlet nozzle, the backflow preventing mechanism and the outlet nozzle connecting piece, so that after the liquid flows into the valve seat from the outlet nozzle connecting piece, the backflow preventing mechanism is opened, the liquid can flow into the water outlet channel through a plurality of through holes of the valve seat, the circulation effect of the liquid is realized, and meanwhile, the backflow preventing mechanism effectively realizes the backflow preventing effect on the liquid, and further the purity of the flowing liquid is guaranteed.
Description
Technical Field
The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve capable of preventing backflow.
Background
Solenoid valves are electromagnetic control industrial devices, which are automated basic elements for controlling fluids, and are actuators, not limited to hydraulic, pneumatic, and control for regulating the direction, flow, velocity, and other parameters of a medium in an industrial control system.
Currently, although the existing solenoid valves on the market can control the medium circulation, the medium backflow cannot be prevented, and the medium backflow can cause pollution to the liquid at the inlet end, so we propose a solenoid valve for preventing backflow.
Disclosure of Invention
The present utility model is directed to a solenoid valve for preventing backflow, which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a solenoid valve for preventing backflow, comprising:
the valve body comprises a head transition piece, one end of the head transition piece is welded with a nozzle, and the other end of the head filter piece is connected with a backflow prevention mechanism for preventing liquid from flowing back;
and the nozzle connecting piece is arranged on the head transition piece and is used for guiding liquid into the head transition piece.
Preferably, the head transition piece comprises a valve seat with a water outlet channel inside, and a buffer groove in an annular shape is arranged on the outer side of the valve seat in a surrounding mode, and divides the valve seat into a front end and a rear end;
the rear end is provided with a plurality of through holes communicated with the buffer groove in a surrounding mode.
Preferably, the nozzle connecting piece comprises a connecting seat sleeved on the outer side of the valve seat, and a connecting channel communicated with the buffer groove is arranged on the connecting seat.
Preferably, the rear end and the position intercommunication that corresponds the water outlet channel have sealed step, and the rear end is equipped with the spread groove that is used for connecting anti-return mechanism, through sealed step and spread groove that are equipped with to play the effect of being connected between anti-return mechanism and the disk seat.
Preferably, the backflow prevention mechanism comprises a connecting screw rod which is abutted against the sealing step during sealing, a nut seat is sleeved on the outer side of the connecting screw rod in a sliding manner, and a sealing cover is arranged on one side, close to the sealing step, of the nut seat;
an annular groove is formed in the connecting screw and corresponds to the position of the center moving hole of the nut seat, and a first sealing gasket is embedded in the annular groove;
the nut seat outside is equipped with makes its sealed sealing washer second with the spread groove, nut seat fixed connection is inside the spread groove, be equipped with the mounting between spread groove and the spread groove outside, and mounting department is equipped with the electromagnetic control spare that is used for controlling connecting screw rod, through the anti-return mechanism that is equipped with to realize carrying out the effect of anti-return when circulating to the inside liquid of disk seat.
Preferably, the mounting includes the connection shell of fixed mounting in the connecting seat outside, the inside fixedly connected with spacing shell of connection shell, and spacing shell sliding sleeve joint is in the outside of nut seat one end.
Preferably, the electromagnetic control member comprises a sealing shell fixedly arranged on the outer side of the connecting shell, an electromagnetic coil is arranged in the sealing shell, and one end of the connecting screw rod penetrates through the connecting shell and is positioned in the electromagnetic coil;
the nut seat is inside to be equipped with reset spring, and reset spring cover establishes in the connecting screw outside, the connecting screw outside is equipped with the spacing ring, and the both ends of limit spring are located between spacing ring and the spacing shell, through the electromagnetic control spare that is equipped with to realize the effect to control connecting screw.
Preferably, two rubber gaskets are arranged on the valve seat, the two rubber gaskets enable the valve seat and the connecting seat to be mutually sealed, and the sealing effect between the valve seat and the connecting seat is achieved through the rubber gaskets.
The utility model has at least the following beneficial effects:
when the anti-backflow valve is used, the valve body is formed by the head transition piece, the nozzle, the anti-backflow mechanism and the nozzle connecting piece, so that after liquid flows into the valve seat from the nozzle connecting piece, the anti-backflow mechanism is started, and the liquid can flow into the water outlet channel through a plurality of through holes of the valve seat, so that the effect of circulating the liquid is realized, and meanwhile, the anti-backflow mechanism effectively realizes the effect of preventing backflow of the liquid, and further, the purity of the flowing liquid is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a cross-sectional view of the overall structure of the present utility model;
FIG. 3 is a schematic diagram of a buffer tank according to the present utility model;
fig. 4 is a schematic structural view of the electromagnetic control member of the present utility model.
In the figure: 1-a valve body; 2-a head transition piece; 21-valve seat; 211-rubber washers; 22-a buffer tank; 23-front end; 24-rear end; 241-sealing step; 242-connecting grooves; 25-through holes; 3-a nozzle; 4-a backflow prevention mechanism; 41-connecting a screw; 42-sealing cover; 43-first sealing gasket; 44-a nut seat; 45-a second sealing gasket; 5-a spout connector; 51-connecting seats; 6-fixing piece; 61-connecting the shells; 62-limiting shells; 7-electromagnetic control; 71-sealing the shell; 72-electromagnetic coils; 73-a return spring; 74-stop collar.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution:
a solenoid valve for preventing backflow, comprising: the valve body 1, the valve body 1 includes the head transition piece 2, one end of the head transition piece 2 welds the outlet nozzle 3, the head transition piece 2 includes the valve seat 21 with water outlet channel inside, in the utility model, one end of the outlet nozzle 3 is conical, thus facilitate its connection with external equipment, meanwhile, the inside of the outlet nozzle 3 has cavity communicated with water outlet channel, and the outside of the valve seat 21 surrounds and is equipped with the buffer slot 22 in the shape of ring, the buffer slot 22 divides the valve seat 21 into front end 23 and rear end 24, the rear end 24 and position corresponding to water outlet channel communicates with the sealing step 241, and the rear end 24 has the connecting slot 242 used for connecting the backflow preventing mechanism 4;
the rear end 24 is provided with a plurality of through holes 25 communicated with the buffer groove 22 in a surrounding way, and in the utility model, the other end of the head filter is connected with a backflow prevention mechanism 4 for preventing liquid backflow, the backflow prevention mechanism 4 comprises a connecting screw 41 which is abutted against a sealing step 241 during sealing, the outer side of the connecting screw 41 is sheathed with a nut seat 44 in a sliding way, and one side of the nut seat 44 close to the sealing step is provided with a sealing cover 42;
an annular groove is formed in the connecting screw 41 and corresponds to the position of the center moving hole of the nut seat 44, and a first sealing gasket 43 is embedded in the annular groove;
the outer side of the nut seat 44 is provided with a second sealing washer 45 for sealing the nut seat with the connecting groove 242, the nut seat 44 is fixedly connected inside the connecting groove 242, a fixing piece 6 is arranged between the outer side of the connecting seat 51 and the connecting groove 242, and an electromagnetic control piece 7 for controlling the connecting screw 41 is arranged at the fixing piece 6;
the fixing piece 6 comprises a connecting shell 61 fixedly arranged on the outer side of the connecting seat 51, a limiting shell 62 is fixedly connected inside the connecting shell 61, the limiting shell 62 is sleeved on the outer side of one end of the nut seat 44 in a sliding manner, and an electromagnetic control piece 7 for controlling the connecting screw 41 is arranged at the connecting shell 61;
the electromagnetic control member 7 comprises a sealing shell 71 fixedly arranged outside the connecting shell 61, an electromagnetic coil 72 is arranged inside the sealing shell 71, and one end of the connecting screw 41 passes through the connecting shell 61 and is positioned inside the electromagnetic coil 72;
the nut seat 44 is internally provided with a reset spring 73, the reset spring 73 is sleeved outside the connecting screw 41, in the utility model, the connecting screw 41 is made of metal material, the connecting screw 41 moves along the electromagnetic coil 72 when the electromagnetic coil 72 is electrified, the outer side of the connecting screw 41 is provided with a limiting ring 74, and two ends of the limiting spring are positioned between the limiting ring 74 and the limiting shell 62;
the nozzle connecting piece 5, the nozzle connecting piece 5 is installed on the head transition piece 2 and is used for guiding liquid to the inside of the head transition piece, the nozzle connecting piece 5 comprises a connecting seat 51 sleeved outside the valve seat 21, and a connecting channel communicated with the buffer groove 22 is arranged on the connecting seat 51.
Two rubber gaskets 211 are mounted on the valve seat 21, and the two rubber gaskets 211 seal the valve seat 21 and the connection seat 51 from each other.
The specific implementation process comprises the following steps: when the electromagnetic valve is used, the electromagnetic coil 72 is electrified, at the moment, one end of the connecting screw 41 moves along the electromagnetic coil 72, while the connecting screw 41 moves, one end of the connecting screw 41 is separated from the sealing step 241, the sealing plate 42 is separated from the plurality of through holes 25, the return spring 73 is compressed, at the moment, liquid enters the buffer groove 22 of the valve seat 21 from the connecting channel of the connecting seat 51 and flows to the four through holes 25, at the moment, the sealing plate 42 and the second sealing gasket 45 keep the connecting groove 242 close to one end of the connecting screw 41 sealed, at the moment, the liquid flowing from the through holes 25 flows into the water outlet channel and flows out through the outlet nozzle 3, so that the liquid backflow is prevented, at the same time, after the liquid circulation is completed, the electromagnetic coil 72 is powered off, at the moment, one end of the connecting screw 41 is under the action of the return spring 73, so that the sealing step 241 is sealed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A backflow-preventing solenoid valve, comprising:
the valve body (1), the valve body (1) comprises a head transition piece (2), one end of the head transition piece (2) is welded with a nozzle (3), and the other end of the head filter piece is connected with a backflow prevention mechanism (4) for preventing liquid backflow;
and the nozzle connecting piece (5) is arranged on the head transition piece (2) and is used for guiding liquid into the head transition piece.
2. A backflow preventing solenoid valve according to claim 1, wherein: the head transition piece (2) comprises a valve seat (21) with a water outlet channel inside, a buffering groove (22) in a ring shape is formed around the outer side of the valve seat (21), and the buffering groove (22) divides the valve seat (21) into a front end (23) and a rear end (24);
the rear end (24) is circumferentially provided with a plurality of through holes (25) communicated with the buffer groove (22).
3. A backflow preventing solenoid valve according to claim 1, wherein: the nozzle connecting piece (5) comprises a connecting seat (51) sleeved on the outer side of the valve seat (21), and a connecting channel communicated with the buffer groove (22) is arranged on the connecting seat (51).
4. A backflow preventing solenoid valve according to claim 2, wherein: the rear end (24) is communicated with a sealing step (241) at a position corresponding to the water outlet channel, and the rear end (24) is provided with a connecting groove (242) for connecting the backflow prevention mechanism (4).
5. A backflow preventing solenoid valve according to claim 3, wherein: the backflow prevention mechanism (4) comprises a connecting screw rod (41) which is abutted against the sealing step (241) during sealing, a nut seat (44) is sleeved on the outer side of the connecting screw rod (41) in a sliding manner, and a sealing cover (42) is arranged on one side, close to the sealing step, of the nut seat (44);
an annular groove is formed in the connecting screw (41) and corresponds to the position of the center moving hole of the nut seat (44), and a first sealing gasket (43) is embedded in the annular groove;
the nut seat (44) is provided with a second sealing washer (45) which enables the nut seat (44) to be sealed with the connecting groove (242), the nut seat (44) is fixedly connected inside the connecting groove (242), a fixing piece (6) is arranged between the outer side of the connecting seat (51) and the connecting groove (242), and an electromagnetic control piece (7) for controlling the connecting screw (41) is arranged at the fixing piece (6).
6. A backflow preventing solenoid valve according to claim 5, wherein: the fixing piece (6) comprises a connecting shell (61) fixedly installed on the outer side of the connecting seat (51), a limiting shell (62) is fixedly connected inside the connecting shell (61), and the limiting shell (62) is sleeved on the outer side of one end of the nut seat (44) in a sliding mode.
7. A backflow preventing solenoid valve according to claim 5, wherein: the electromagnetic control part (7) comprises a sealing shell (71) fixedly arranged on the outer side of the connecting shell (61), an electromagnetic coil (72) is arranged in the sealing shell (71), and one end of the connecting screw rod (41) penetrates through the connecting shell (61) and is positioned in the electromagnetic coil (72);
the nut seat (44) is internally provided with a reset spring (73), the reset spring (73) is sleeved outside the connecting screw (41), the outer side of the connecting screw (41) is provided with a limiting ring (74), and two ends of the limiting spring are positioned between the limiting ring (74) and the limiting shell (62).
8. A backflow preventing solenoid valve according to claim 3, wherein: two rubber gaskets (211) are arranged on the valve seat (21), and the two rubber gaskets (211) seal the valve seat (21) and the connecting seat (51) with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320718864.1U CN219975562U (en) | 2023-03-28 | 2023-03-28 | Electromagnetic valve capable of preventing backflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320718864.1U CN219975562U (en) | 2023-03-28 | 2023-03-28 | Electromagnetic valve capable of preventing backflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219975562U true CN219975562U (en) | 2023-11-07 |
Family
ID=88579275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320718864.1U Active CN219975562U (en) | 2023-03-28 | 2023-03-28 | Electromagnetic valve capable of preventing backflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219975562U (en) |
-
2023
- 2023-03-28 CN CN202320718864.1U patent/CN219975562U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |