CN2731209Y - Pressure limiting valve for electric sprayer - Google Patents
Pressure limiting valve for electric sprayer Download PDFInfo
- Publication number
- CN2731209Y CN2731209Y CN 200420095428 CN200420095428U CN2731209Y CN 2731209 Y CN2731209 Y CN 2731209Y CN 200420095428 CN200420095428 CN 200420095428 CN 200420095428 U CN200420095428 U CN 200420095428U CN 2731209 Y CN2731209 Y CN 2731209Y
- Authority
- CN
- China
- Prior art keywords
- pressure
- spool
- groove
- siphunculus
- valve core
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to an electric sprayer accessory, in particular to a pressure limiting valve which is connected between an electric cylinder and an energy storing pot in series. The pressure limiting valve for an electric sprayer is composed of a triple tube, a valve core which is arranged in an expansion tube cavity which is arranged at the lower part of the triple tube, a sealing rubber sheet which is connected with the lower part of the valve core, a pressure-limiting spring which is abutted and pressed on the lower end of the valve core and a pressure regulating knob, etc. The middle part of the valve core is provided with a groove, a water inlet opening and a water outlet opening which are communicated with the groove, and the water outlet position at the upper part of the valve core is provided with a valve ball. A liquid discharging channel is arranged between the outer lateral surface of the upper part of the valve core and the expansion tube cavity, and the liquid discharging channel is communicated with the groove of the middle part of the valve core. When the pressure in the energy storing pot is more than the elastic force of the spring, the valve core and the valve ball are pressed downwards, so liquid medicine back flows to the cylinder via the liquid discharging channel from the energy storing pot. So the utility model plays the role of reducing and balancing the pressure of the energy storing pot.
Description
Technical field:
The utility model relates to a kind of power spraye accessory, specifically is a kind of pressure-limit valve that is serially connected with between electronic cylinder barrel and the energy storage canister.
Background technique:
Power spraye adopts the motor driving cylinder device, replaces hand cylinder device, and arrival reduces labor intensity, purpose such as increase work efficiency.Hand sprayer can be controlled its air pressure with operator's experience.But the cylinder barrel work of power spraye relies on driven by motor.Generally speaking, motor is continuous operation, if motor driving cylinder barrel system does not have protective gear, will produce following adverse consequences: when (1) surpasses energy storage canister withstand voltage when pressure, and the energy storage canister damage of will breaking; (2) motor stops operating and burns damage.But the protective gear of existing power spraye, its structure more complicated is difficult to repair and replacement, poor reliability.
Summary of the invention:
The purpose of this utility model is to provide a kind of simple in structure to the improvement of the protective gear of existing power spraye, is convenient for changing maintenance, and reliability is high is serially connected with pressure limiting device between electronic cylinder barrel and the energy storage canister.
The utility model, comprise three-way pipe, three-way pipe comprises siphunculus, lower through-tube and side siphunculus, last siphunculus is connected with energy storage canister by outside thread, the side siphunculus is connected with electronic cylinder barrel by outside thread, the Lower Half of three-way pipe is provided with the hole enlargement tube chamber, be provided with spool in the hole enlargement tube chamber, the bottom of spool is by screw fitting tight film, sealed film is packaged in the end of lower through-tube by the end cap that is threaded, end cap is provided with the extension pipeline section on axis, the end of extending pipeline section is provided with pressure adjustment knob, the internal thread of pressure adjustment knob matches with the outside thread that extends pipeline section, in extending pipeline section, the pressure limiting spring is set, the lower end roof pressure of pressure limiting spring is in the bottom of pressure adjustment knob, the lower end of the upper end roof pressure spool of pressure limiting spring, the upper-end surface of spool is provided with annular groove, annular groove configuration seal ring, the seal ring roof pressure holds the shoulder place in the hole enlargement of three-way pipe, top at spool is provided with osculum, the middle part of spool is provided with groove, and groove communicates with the side siphunculus, on groove, be provided with radially water inlet, the water inlet communicates with osculum, and the osculum place is provided with valve ball, between the shoulder of the undergauge top of valve ball and last siphunculus end, Returnning spring is set, between the outer side surface and hole enlargement tube chamber on spool top, be provided with the drainage passage, the drainage passage communicates with the groove at spool middle part.
The utility model can be provided with annular groove in the lower side of described spool, and annular groove configuration cushion rubber is to reduce friction.
The utility model has characteristics such as simple and reasonable, pressure limiting reliable in action height.
Description of drawings:
Fig. 1 is embodiment's a structural principle schematic representation; Fig. 2 is embodiment's proper functioning principle schematic;
Fig. 3 is embodiment's pressure release working principle schematic representation.
Among the figure, 10, three-way body 12, go up siphunculus 11, side siphunculus 13, hole enlargement tube chamber 14, lower through-tube 15, undergauge top shoulder 16, hole enlargement and hold shoulder 20, spool 21, water inlet 22, osculum 23, annular groove 24, seal ring 25, screw 26, groove 27, cushion rubber 30, end cap 31, extend pipeline section 40, pressure adjustment knob 50, pressure limiting spring 60, sealed film 70, valve ball 80, Returnning spring 90, drainage passage.
Embodiment:
With reference to Fig. 1, this power spraye pressure-limit valve, comprise three-way pipe 10, three-way pipe comprises siphunculus 12, lower through-tube 14 and side siphunculus 11, last siphunculus 12 is connected with energy storage canister by outside thread, side siphunculus 11 is connected with electronic cylinder barrel by outside thread, the Lower Half of three-way pipe is provided with hole enlargement tube chamber 13, be provided with spool 20 in the hole enlargement tube chamber, the bottom of spool is by screw 25 fitting tight films 60, sealed film is packaged in the end of lower through-tube 14 by the end cap 30 that is threaded, end cap is provided with on axis and extends pipeline section 31, the end of extending pipeline section is provided with pressure adjustment knob 40, the internal thread of pressure adjustment knob matches with the outside thread that extends pipeline section, in extending pipeline section, pressure limiting spring 50 is set, the lower end roof pressure of pressure limiting spring is in the bottom of pressure adjustment knob, the lower end of the upper end roof pressure spool of pressure limiting spring, the upper-end surface of spool is provided with annular groove 23, annular groove configuration seal ring 24, the seal ring roof pressure holds shoulder 16 places in the hole enlargement of three-way pipe, be provided with osculum 22 on the top of spool, the middle part of spool is provided with groove 26, groove communicates with the side siphunculus, on groove, is provided with radially water inlet 21, the water inlet communicates with osculum, the osculum place is provided with valve ball 70, between the undergauge top of valve ball and last siphunculus end shoulder 15, Returnning spring 80 is set, between the outer side surface and hole enlargement tube chamber on spool top, be provided with drainage passage 90, this example adopts spool top undergauge and the gap that produces forms the drainage passage, and the drainage road communicates with groove 26 in the middle part of the spool.This example also in the lower side of described spool, is provided with annular groove, and annular groove configuration cushion rubber 27 is to reduce friction.
Its working principle is: when the power supply of connecting motor, when the reciprocating type syringe pump of driven by motor is worked, soup is under the pressure of pump, and intermittence ground warp side siphunculus 11, water inlet 21, osculum 22, one-way valve (being made of Returnning spring 80 and valve ball 70), last siphunculus 12 are pressed in the energy storage canister (as shown in Figure 2); Along with the amount of liquid medicine in the energy storage canister is on the increase, pressure also constantly increases, and also constantly increases to the active force of pressure limiting spring 50 through valve ball 70 with together with one spool 20; When the pressure in the energy storage canister is increased to certain value (the pressure size of being regulated on the pressure limiting spring is decided), with force valve ball 70 together with spool 20 overcome the pressure of pressure limiting spring 50 with its downward pushing; Make soup flow backward to cylinder barrel (as shown in Figure 3) through last siphunculus 12, drainage passage 90, groove 26, side siphunculus 11; When the pressure of energy storage canister during less than the elastic force of pressure limiting spring 50, spool 20 returns to original position, and drainage passage 90 is closed.Thereby play the effect that reduction and weighing apparatus are decided energy storage canister pressure.
Claims (2)
1, a kind of power spraye pressure-limit valve, it is characterized in that: comprise three-way pipe (10), three-way pipe comprises siphunculus (12), lower through-tube (14) and side siphunculus (11), last siphunculus is connected with energy storage canister by outside thread, the side siphunculus is connected with electronic cylinder barrel by outside thread, the Lower Half of three-way pipe is provided with hole enlargement tube chamber (13), be provided with spool (20) in the hole enlargement tube chamber, the bottom of spool is by screw (25) fitting tight film (60), sealed film is packaged in the end of lower through-tube by the end cap (30) that is threaded, end cap is provided with on axis and extends pipeline section (31), the end of extending pipeline section is provided with pressure adjustment knob (40), the internal thread of pressure adjustment knob matches with the outside thread that extends pipeline section, in extending pipeline section, pressure limiting spring (50) is set, the lower end roof pressure of pressure limiting spring is in the bottom of pressure adjustment knob, the lower end of the upper end roof pressure spool of pressure limiting spring, the upper-end surface of spool is provided with annular groove (23), annular groove configuration seal ring (24), the seal ring roof pressure holds shoulder (16) in the hole enlargement of three-way pipe and locates, be provided with osculum (22) on the top of spool, the middle part of spool is provided with groove (26), groove communicates with the side siphunculus, on groove, be provided with radially water inlet (21), the water inlet communicates with osculum, and the osculum place is provided with valve ball (70), between the undergauge top shoulder (15) of valve ball and last siphunculus end, Returnning spring (80) is set, between the outer side surface and hole enlargement tube chamber on spool top, be provided with drainage passage (90), the drainage road communicates with the groove (26) at spool middle part.
2, power spraye pressure-limit valve according to claim 1, the lower side at described spool is provided with annular groove, annular groove configuration cushion rubber (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095428 CN2731209Y (en) | 2004-11-12 | 2004-11-12 | Pressure limiting valve for electric sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095428 CN2731209Y (en) | 2004-11-12 | 2004-11-12 | Pressure limiting valve for electric sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731209Y true CN2731209Y (en) | 2005-10-05 |
Family
ID=35051545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420095428 Expired - Fee Related CN2731209Y (en) | 2004-11-12 | 2004-11-12 | Pressure limiting valve for electric sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731209Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907091A (en) * | 2010-08-20 | 2010-12-08 | 南京大地水刀股份有限公司 | Novel balanced type water inlet and outlet valve group of ultrahigh pressure supercharger |
| CN113008586A (en) * | 2021-02-14 | 2021-06-22 | 梅晓靖 | Detection device for reducing temperature and pressure |
-
2004
- 2004-11-12 CN CN 200420095428 patent/CN2731209Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907091A (en) * | 2010-08-20 | 2010-12-08 | 南京大地水刀股份有限公司 | Novel balanced type water inlet and outlet valve group of ultrahigh pressure supercharger |
| CN113008586A (en) * | 2021-02-14 | 2021-06-22 | 梅晓靖 | Detection device for reducing temperature and pressure |
| CN113008586B (en) * | 2021-02-14 | 2023-07-14 | 国能河北龙山发电有限责任公司 | Detection device for temperature and pressure reduction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2731209Y (en) | Pressure limiting valve for electric sprayer | |
| CN2613655Y (en) | Quick demountable pressure-regulating valve set | |
| CN205155276U (en) | Novel discharge servovalve | |
| CN2519893Y (en) | Pressure releasing structure for one-way valve of electric water heater | |
| CN2861534Y (en) | Plunger pump for jetting machine | |
| CN209876111U (en) | Automatic pressure regulating valve suitable for branch pipe | |
| CN104895771B (en) | Miniature submersible ability of swimming membrane pump | |
| CN202914411U (en) | Liquid pump drainage device of piston vacuum pump | |
| CN2563390Y (en) | Pressure reducing and water saving valve for city water | |
| CN206555045U (en) | A kind of pressure valve with filtration | |
| CN204061135U (en) | A kind of durable two-cylinder type plunger pump | |
| CN202017567U (en) | Fuel oil filter and fuel oil filter seat | |
| CN201045336Y (en) | Petrol engine water pump | |
| CN204572471U (en) | Self-priming water pump | |
| CN201068643Y (en) | Pressure regulating type heavy pressure infusion plugging machine | |
| CN2162570Y (en) | Pressure regulating reflux valve | |
| CN2741667Y (en) | Multifunction electric spray device | |
| CN202431478U (en) | Exhausted air back-flowing device of compressor | |
| CN217762082U (en) | Throttling stop valve based on soft sealing structure | |
| CN2323172Y (en) | Automatic pressure controlling device for high pressure pump | |
| CN2172382Y (en) | Pressure-increasing high-efficiency water-saving valve | |
| CN201593468U (en) | Automatic fuel pump of automatic pressure adjusting motorcar pipeline | |
| CN2594961Y (en) | Checdk overflow valve pressure switch | |
| CN203161564U (en) | Constant pressure type water pipe booster pump | |
| CN211285788U (en) | Water supply equipment with intelligent frequency division interval model selection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |