CN208651735U - A kind of normally closed solenoid valve with self-protection function - Google Patents
A kind of normally closed solenoid valve with self-protection function Download PDFInfo
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- CN208651735U CN208651735U CN201821045668.8U CN201821045668U CN208651735U CN 208651735 U CN208651735 U CN 208651735U CN 201821045668 U CN201821045668 U CN 201821045668U CN 208651735 U CN208651735 U CN 208651735U
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Abstract
The utility model relates to a kind of normally closed solenoid valves with self-protection function, including valve body, influent stream pipe, outflow tube and upper housing, cavity is provided in the valve body, valve seat is provided in the cavity, flow-out hole is offered in the valve seat, flow-in hole and flowing hole are also offered respectively on the side wall of the valve seat, the flow-out hole, flow-in hole and flowing hole are connected with cavity respectively, the exit of the flowing hole is provided with pressure protection valve, the influent stream pipe is fixedly connected on the side wall of valve body, the influent stream pipe is connected with flow-in hole, the outflow tube is fixedly connected on the bottom of valve body, the outflow tube is connected with flow-out hole.The design has the advantages that structure is simple, easily fabricated and practical and efficient.
Description
Technical field
The utility model relates to a kind of solenoid valves, are specifically related to a kind of normally closed type electromagnetism with self-protection function
Valve.
Background technique
Normally closed solenoid valve is of wide application, such as: in ice machine, in air-conditioning, the fluid pressure type pneumatic circuit of various equipment
In, for ice machine and air conditioner, it is a kind of essential component, and working principle is the valve when air conditioner normal operation
Door no power, the system pipeline is in closed state, and when carrying out dehumidifier, valve, which is powered, to be opened, and compressor 10%-20% exhaust is straight
It connects and flows back to compressor inlet, so as to energy saving, there are many producer of domestic production normally closed solenoid valve at present, mostly use greatly
Be plane be attracted and rubber seal, sealing performance is not good, is easy to produce leakage, dangerous.
Summary of the invention
Pressure protection valve is arranged in the exit of flowing hole in the utility model, is played by pressure protection valve to solenoid valve
The effect of protection, prevents the excessive pressure from causing to damage to self structure；It provides a kind of with the normally closed of self-protection function
Formula solenoid valve.
In order to solve the above technical problems, the utility model provides a kind of normally closed type electromagnetism with self-protection function
Valve, including
Valve body is provided with cavity in the valve body, valve seat is provided in the cavity, is offered in the valve seat
Flow-out hole also offers flow-in hole and flowing hole, the flow-out hole, flow-in hole and mistake on the side wall of the valve seat respectively
Discharge orifice is connected with cavity respectively, and the exit of the flowing hole is provided with pressure protection valve,
Influent stream pipe, the influent stream pipe are fixedly connected on the side wall of valve body, and the influent stream pipe is connected with flow-in hole,
Outflow tube, the outflow tube are fixedly connected on the bottom of valve body, and the outflow tube is connected with flow-out hole,
Upper housing, the upper housing are mounted on the top of valve body, cored and electromagnetic wire are arranged in the upper housing
Circle, the iron core are movably connected in electromagnetic coil, and the roof that the lower end of the iron core passes through valve body stretches in cavity,
The lower end of the iron core is provided with spherical plug, and the valve seat offers the link slot to match with spherical plug, described
Flow-out hole connected in link slot and be sealed by spherical plug.
Further, the upper end of the upper housing has been removably installed end cap, threaded hole is offered on the end cap,
Adjusting screw rod is connected in the threaded hole, the adjusting screw rod stretches in upper housing across threaded hole and and adjustable plate
It is connected, the lower end of the adjusting screw rod is flexibly connected with adjustable plate, and the upper end of the iron core passes through spring and adjustable plate phase
Even.
Further: the pressure protection valve includes pressure valve cylinder, pressure valve core, compression spring and pressure valve seat, institute
The pressure valve cylinder stated is connected with flowing hole, and the pressure valve core is movably connected in one end of pressure valve cylinder, the pressure
Power valve seat is mounted on the other end of pressure valve cylinder, and the pressure valve core is connected by compression spring with pressure valve seat, described
Through-hole is also provided on the side wall of pressure valve cylinder.
After adopting the above structure, pressure protection valve is arranged in the exit of flowing hole in the utility model, passes through pressure protection
Valve plays the role of protection to solenoid valve, prevents excessive pressure from causing to damage to self structure；And the design also has
Have the advantages that structure is simple, easily fabricated and practical and efficient.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the utility model.
The structural schematic diagram of the position Fig. 2 pressure protection valve.
Specific embodiment
A kind of normally closed solenoid valve with self-protection function as shown in Figure 1, including valve body 1, influent stream pipe 3, out stream
Pipe 4 and upper housing 8 are provided with cavity 2 in the valve body 1, are provided with valve seat 5 in the cavity 2, in the valve seat 5
Flow-out hole is offered, also offers flow-in hole and flowing hole 6, the flow-out hole, influent stream on the side wall of the valve seat 5 respectively
Hole and flowing hole 6 are connected with cavity 2 respectively, and the exit of the flowing hole 6 is provided with pressure protection valve 7, described
Influent stream pipe 3 is fixedly connected on the side wall of valve body 1, and the influent stream pipe 3 is connected with flow-in hole, and the outflow tube 4 is fixed
It is connected to the bottom of valve body 1, the outflow tube 4 is connected with flow-out hole, and the upper housing 8 is mounted on the top of valve body 1,
Setting cored 10 and electromagnetic coil 9 in the upper housing 8, the iron core 10 is movably connected in electromagnetic coil 9, described
Iron core 10 lower end pass through valve body 1 roof stretch in cavity 2, the lower end of the iron core 10 is provided with spherical plug,
The valve seat 5 offers the link slot to match with spherical plug, and the flow-out hole is connected by spherical plug into connection
It is sealed in slot.Pressure protection valve is arranged in the exit of flowing hole in the utility model, by pressure protection valve to solenoid valve
Play the role of protection, prevent excessive pressure from causing to damage to self structure.
The upper end of upper housing 8 as shown in Figure 1 has been removably installed end cap 12, offers screw thread on the end cap 12
Hole, adjusting screw rod 13 is connected in the threaded hole, and the adjusting screw rod 13 passes through threaded hole and stretches in upper housing 8 simultaneously
It is connected with adjustable plate 14, the lower end of the adjusting screw rod 13 is flexibly connected with adjustable plate 14, and the upper end of the iron core 10 is logical
Spring 11 is crossed to be connected with adjustable plate 14.
Pressure protection valve 7 as shown in Figure 2 includes pressure valve cylinder 7-1, pressure valve core 7-2, compression spring 7-4 and pressure valve
Seat 7-5, the pressure valve cylinder 7-1 is connected with flowing hole 6, and the pressure valve core 7-2 is movably connected in pressure valve cylinder 7-1
One end in, the pressure valve seat 7-5 is mounted on the other end of pressure valve cylinder 7-1, and the pressure valve core 7-2 passes through pressure
Spring 7-4 is connected with pressure valve seat 7-5, is also provided with through-hole on the side wall of the pressure valve cylinder 7-1.The design has structure
Simply, easily fabricated and practical and efficient advantage.
Claims (3)
1. a kind of normally closed solenoid valve with self-protection function, it is characterised in that: including
Valve body is provided with cavity in the valve body, valve seat is provided in the cavity, offers out and flows in the valve seat
Hole also offers flow-in hole and flowing hole, the flow-out hole, flow-in hole and flowing hole on the side wall of the valve seat respectively
It is connected respectively with cavity, the exit of the flowing hole is provided with pressure protection valve,
Influent stream pipe, the influent stream pipe are fixedly connected on the side wall of valve body, and the influent stream pipe is connected with flow-in hole,
Outflow tube, the outflow tube are fixedly connected on the bottom of valve body, and the outflow tube is connected with flow-out hole,
Upper housing, the upper housing are mounted on the top of valve body, cored and electromagnetic coil, institute are arranged in the upper housing
The iron core stated is movably connected in electromagnetic coil, and the roof that the lower end of the iron core passes through valve body stretches in cavity, described
The lower end of iron core be provided with spherical plug, the valve seat offers the link slot to match with spherical plug, and described goes out
Discharge orifice is connected in link slot by spherical plug and is sealed.
2. a kind of normally closed solenoid valve with self-protection function according to claim 1, it is characterised in that: described
The upper end of upper housing has been removably installed end cap, and threaded hole is offered on the end cap, is connected in the threaded hole
Adjusting screw rod, the adjusting screw rod pass through threaded hole and stretch in upper housing and be connected with adjustable plate, the adjusting screw rod
Lower end be flexibly connected with adjustable plate, the upper end of the iron core is connected by spring with adjustable plate.
3. a kind of normally closed solenoid valve with self-protection function according to claim 1, it is characterised in that: described
Pressure protection valve includes pressure valve cylinder, pressure valve core, compression spring and pressure valve seat, and the pressure valve cylinder is connected with flowing hole
Logical, the pressure valve core is movably connected in one end of pressure valve cylinder, and the pressure valve seat is mounted on the another of pressure valve cylinder
One end, the pressure valve core are connected with pressure valve seat by compression spring, are also provided on the side wall of the pressure valve cylinder
Through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821045668.8U CN208651735U (en) | 2018-07-03 | 2018-07-03 | A kind of normally closed solenoid valve with self-protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821045668.8U CN208651735U (en) | 2018-07-03 | 2018-07-03 | A kind of normally closed solenoid valve with self-protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208651735U true CN208651735U (en) | 2019-03-26 |
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ID=65782588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821045668.8U Active CN208651735U (en) | 2018-07-03 | 2018-07-03 | A kind of normally closed solenoid valve with self-protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208651735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131462A (en) * | 2019-04-11 | 2019-08-16 | 深圳垦拓流体控制有限公司 | The automatically controlled protection system and automatically controlled guard method of solenoid valve, solenoid valve |
-
2018
- 2018-07-03 CN CN201821045668.8U patent/CN208651735U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131462A (en) * | 2019-04-11 | 2019-08-16 | 深圳垦拓流体控制有限公司 | The automatically controlled protection system and automatically controlled guard method of solenoid valve, solenoid valve |
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