CN112044619A - High-pressure cleaning machine gun unloading stop device - Google Patents
High-pressure cleaning machine gun unloading stop device Download PDFInfo
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- CN112044619A CN112044619A CN202010950958.2A CN202010950958A CN112044619A CN 112044619 A CN112044619 A CN 112044619A CN 202010950958 A CN202010950958 A CN 202010950958A CN 112044619 A CN112044619 A CN 112044619A
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- pressure
- valve
- water outlet
- ejector rod
- spring
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Safety Valves (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a high-pressure cleaning machine gun unloading stop device which comprises a high-pressure water outlet valve arranged between a water inlet and a water outlet of a plunger pump, wherein a pressure regulating valve and a pressure retaining valve are sequentially arranged on a channel communicated between the water outlet end of the high-pressure water outlet valve and a water outlet connector, a pressure relief valve is arranged in a channel at the lower end of the pressure regulating valve, the pressure relief valve comprises a pressure relief ejector rod, an overflow seat and a steel ball, the bottom of the pressure relief ejector rod is communicated with a channel provided with the water outlet connector, a through hole communicated with the water inlet is formed in the pressure relief ejector rod, a micro switch device is arranged between the water outlet end of the pressure regulating valve and the water outlet connector, the micro switch device comprises a switch ejector rod driving a micro switch to be. The invention can unload and stop instantly after the gun is closed and realize low pressure maintaining, can restart instantly after the gun is opened, and regulates the working pressure which does not pass through by the pressure regulating valve, thereby ensuring the service life of the plunger pump and having more reliable performance.
Description
Technical Field
The invention relates to a plunger pump component of a high-pressure cleaning machine, in particular to a gun unloading stopping device of the high-pressure cleaning machine.
Background
Currently, high pressure cleaning machines have been widely used in people's lives, and high pressure water generated by a high pressure pump is used for strongly washing the surface of an object, and the high pressure cleaning machines can be used for cleaning automobiles, gardens, walls and the like. Therefore, high pressure cleaning is also considered to be one of the most scientific and environmentally friendly cleaning means. At present, after a gun is closed, a water return switch is opened through high-pressure water ejection in a pressure regulating valve of a pump, and high-pressure water returns to a water inlet channel to realize internal circulation. In the use process of the structure, the temperature of circulating high-pressure water is continuously increased, the internal parts, particularly parts such as sealing elements and the like, are quickly aged, the service life is shortened, the use effect is influenced, in addition, the high-pressure cleaning machine can also realize the gun closing and stopping function, but the high-pressure cleaning machine adopts a high pressure maintaining device, namely, after the gun closing and stopping, pressure higher than working pressure is remained in a pump, the requirement on a water outlet high-pressure pipe is extremely high, and the high-pressure pipe is easy to break.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the problem that the service life of an existing cleaning machine is influenced by damage to internal parts caused by high pressure left in a pump after a gun is shut down, and improve the usability and reliability of the pump.
The technical scheme is as follows: the invention relates to a high-pressure cleaning machine gun closing unloading stop device, which comprises a high-pressure water outlet valve arranged between a water inlet and a water outlet of a plunger pump, wherein a pressure regulating valve and a pressure retaining valve are sequentially arranged on a channel communicated between the water outlet end of the high-pressure water outlet valve and a water outlet connector, a pressure relief valve is arranged in a channel at the lower end of the pressure regulating valve, the pressure relief valve comprises a pressure relief ejector rod, an overflow seat and a steel ball, the bottom of the pressure relief ejector rod is communicated with a channel provided with the water outlet connector, a through hole communicated with the water inlet is arranged in the pressure relief ejector rod, the overflow seat is arranged on the upper side of the pressure relief ejector rod, the steel ball is seated on the overflow seat, the pressure retaining valve comprises a pressure retaining valve cover, a pressure retaining valve core spring, a pressure retaining valve core return spring and, a pressure maintaining valve return spring is arranged between the pressure maintaining valve cover and the water outlet joint, a micro switch device is arranged between the water outlet end of the pressure adjusting valve and the water outlet joint, the micro switch device comprises a switch ejector rod for driving the micro switch to be switched on and off, the lower side of the switch ejector rod is communicated with a water outlet channel of the pressure adjusting valve, and the upper side of the switch ejector rod is communicated with a channel provided with the water outlet joint;
wherein, after the gun is closed, the water pressure in the water outlet channel rises rapidly, the pressure at the lower end of the pressure relief mandril rises, when the pressure is larger than the spring force of the pressure regulating valve, the pressure relief mandril jacks up the steel ball, high-pressure water flows back into the water inlet from the water return hole on the pressure relief mandril, the left side of the pressure retaining valve is a low-pressure area, the right side of the pressure retaining valve still keeps certain high pressure, the pressure retaining valve is attached to the pump body and sealed, at the moment, the pressure at the right side of the pressure stabilizing valve core is larger than the spring force at the left side, the pressure stabilizing valve core is pushed to move leftwards, the pressure at the right side is unloaded into the pump body, when the pressure is unloaded to the set pressure, the spring of the pressure retaining valve core pushes the pressure stabilizing valve core to be attached to the valve cover to form sealed pressure retaining, the pressure of the upper end of the switch ejector rod is larger than the spring force of the lower end of the switch ejector rod, the switch ejector rod is driven to move downwards to be separated from the microswitch, the microswitch is powered off, the motor stops working, and the machine is stopped and low pressure maintaining is achieved.
In order to conveniently adjust the working water pressure, the pressure adjusting valve comprises a pressure adjusting plug, a pressure adjusting spring, a spring seat, a pressure adjusting rod and a pressure adjusting cap, the lower end of the pressure adjusting plug enables the spring seat to be abutted to the steel ball through the pressure adjusting spring, the upper end of the pressure adjusting plug is provided with the pressure adjusting rod which drives the spring seat to move, and the pressure adjusting rod penetrates through the pressure adjusting cap and then is connected with a pressure adjusting knob.
The spring seat is arranged in a channel communicated with the water outlet end of the high-pressure water outlet valve and the pressure retaining valve.
In order to facilitate water outlet, a liquid suction nozzle is installed in the water outlet connector, one side of the pressure retaining valve is abutted to the water outlet channel of the pressure regulating valve and seals the pump body through a sealing ring, and the other end of the pressure retaining valve is connected with the liquid suction nozzle through a pressure retaining valve return spring.
In order to facilitate the mixed ejection of the soap liquid and the high-pressure water, the soap liquid device comprises a liquid suction joint, a liquid suction steel ball is placed below the liquid suction joint and is sealed above the liquid suction steel ball through a sealing ring, a liquid suction spring is arranged below the liquid suction steel ball, a cavity below the liquid suction steel ball is communicated with an outlet of a liquid suction nozzle, the high-pressure water passes through the liquid suction nozzle and forms a negative pressure area at the outlet of the liquid suction nozzle through a siphon effect, and when the negative pressure of the negative pressure area is greater than the elastic force of the liquid suction spring, the liquid suction steel ball is driven to move downwards to suck the soap liquid into a water outlet joint through the liquid suction joint and the soap liquid is mixed with the.
In order to facilitate the switch ejector rod to drive the microswitch to be switched on and off, the switch ejector rod comprises an ejector rod seat and an ejector rod, the ejector rod is connected with the upper end of the ejector rod seat, the bottom of the ejector rod seat is communicated with a water outlet channel of the pressure regulating valve, the upper portion of the ejector rod seat is communicated with a channel provided with a water outlet connector, and a switch ejector rod spring is arranged between the bottom of the ejector rod seat and the water outlet channel of the pressure regulating valve.
So that the steel ball of the soap liquid device is opened to suck the soap liquid during working, and the channel between the liquid suction nozzle and the water outlet connector is of a Venturi tube structure.
In order to ensure that high-pressure water does not flow into the pressure release valve when the spray gun works, the overflow seat is sealed with a channel provided with the pressure release valve through a sealing ring.
Avoid high pressure water to get into the water inlet and cause and reveal, the pressure release ejector pin passes through the sealing washer and seals with the passageway of installation relief valve.
The pressure maintaining valve core is sealed with the pump body through a sealing ring.
Has the advantages that: the high-pressure cleaning machine can be stopped immediately after the gun is closed, the power source is cut off, and the low-pressure-maintaining standby state is entered; can restart immediately after the rifle is driven simultaneously, avoid the high-pressure water inner loop and lead to the temperature to rise, produce the influence to inside sealing member, avoid standby high-pressure state to cause the harm of parts such as high-pressure pipe simultaneously, not only played the effect of energy saving, played the function of protection internals simultaneously, guaranteed the life of plunger pump to pressurize performance has also obtained very big improvement, even can still realize the pressurize under lower pressurize pressure.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 taken along line B-B;
FIG. 3 is an assembled schematic view of the microswitch of the present invention;
fig. 4 is a schematic view of the pressure regulating knob assembly removed.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in figures 1-3, the invention discloses a high pressure cleaning machine gun unloading stop device, which comprises a high pressure water outlet valve 16 arranged at a water inlet and a water outlet of a plunger pump, wherein the high pressure water outlet valve 16 is communicated with a water outlet joint 10 through a water outlet tee passage, a pressure retaining valve is arranged at the water outlet side of a transverse passage of the water outlet tee, a pressure regulating valve and a pressure relief valve are sequentially arranged in a longitudinal passage from top to bottom, the pressure relief valve comprises a pressure relief ejector rod 36, an overflow seat 32 and a steel ball 31, the bottom of the pressure relief ejector rod 36 is communicated with a passage for installing the water inlet joint 17, a through hole communicated with the water inlet is arranged in the pressure relief ejector rod 36, the pressure relief ejector rod 36 is sealed with the passage for installing the pressure relief valve through a sealing ring 1 to avoid high pressure water from entering the water inlet to cause leakage, the overflow seat 32 is arranged at the upper, the pressure regulating valve comprises a pressure regulating plug 29, a spring seat 30, a pressure regulating rod 23 and a pressure regulating cap 40, the lower end of the pressure regulating plug 29 is abutted against a steel ball 31 through the spring seat 30, the upper end is provided with a pressure regulating rod 23 for driving the spring seat 30 to move, a pressure regulating spring 28 is arranged between the spring seat 30 and the pressure regulating rod 23, the pressure regulating rod 23 is connected with a pressure regulating knob 22 after penetrating through the pressure regulating cap 40, the pressure regulating rod 23 can be driven by the pressure regulating knob 22 to compress the pressure regulating spring 28 so that the steel ball 31 is tightly attached to an overflow seat 32 and different pressing forces can be realized, and further the leakage quantity of water flow is regulated to realize different water outlet pressures and flow rates, a micro switch device is arranged between the water outlet end of the pressure regulating valve and the water outlet connector 10 and comprises a switch ejector rod 51 for driving the micro switch to be switched on, set up switch ejector pin spring 54 between switch ejector pin 51 bottom and the air-vent valve delivery channel, and through the elasticity of spring, touch the micro-gap switch with ejector pin jack-up and switch on, the pressure retaining valve includes pressurize case 2, pressurize case 12 and pressurize valve gap 13, pressurize case 2 and pressurize case 12 are installed in pressurize valve gap 13, be provided with pressurize case spring 11 between pressurize case 2 and the pressurize case 12, 2 one side butt of pressurize case is sealed on the air-vent valve delivery channel and through sealing washer 1, the other end is equipped with the pressurize valve gap, pressurize valve gap 13 is connected with water connectors 10 through pressure retaining valve reset spring 14, the during operation pressure retaining valve moves right under the impact of high-pressure water, high-pressure water flows through the pressure retaining valve and enters into water connectors and flows out. When the gun is closed, the pressure relief ejector rod 36 jacks up the steel ball to relieve pressure, under the action of the pressure relief valve return spring 14, the pressure relief valve is attached to the conical surface of the pump body through a sealing ring to form sealing, at the moment, a certain high pressure is still kept on the right side of the pressure relief valve, the pressure borne by the right side of the pressure relief valve core 2 is greater than the force of the pressure relief valve core spring 11 on the left side, the pressure relief valve core 2 is pushed to move leftwards to unload the pressure in the water outlet connector 10 into the pump body, when the pressure is unloaded to a set pressure, the pressure relief valve core spring 11 pushes the pressure relief valve core 2 to move rightwards to be attached to the sealing ring in the pressure relief valve cover 13 to form pressure relief, the liquid suction nozzle 15 is arranged in the water outlet connector 10 in an interference manner, the liquid suction nozzle 15 is communicated with a soap liquid device, the soap liquid device comprises a, the cavity below the liquid absorption steel ball 7 is communicated with the outlet of the liquid absorption nozzle 15, when high-pressure water passes through the liquid absorption nozzle 15, a negative pressure area is formed at the outlet of the liquid absorption nozzle 15, when the negative pressure is greater than the elastic force of the liquid absorption spring 9, the liquid absorption steel ball 7 is driven to move downwards, soap liquid enters the outlet of the liquid absorption nozzle 15 and flows out together with the high-pressure water, a channel between the liquid absorption nozzle 15 and the water outlet connector 10 is of a Venturi tube structure, so that the liquid absorption nozzle can form the negative pressure area during working, and the steel ball of the soap liquid nozzle can be opened to achieve the.
As shown in fig. 4, the pressure regulating knob assembly can be eliminated, and the pressure regulating plug is designed to be closed, so that the constant-value gun closing unloading machine can be stopped, and the gun enters a low pressure maintaining state.
When the machine is not started, the pressure regulating spring 28 tightly attaches the steel ball 31 to the overflow seat 32 through the spring seat 30 to form sealing, the pressure maintaining valve return spring 14 attaches the sealing ring 1 on the pressure maintaining valve core 2 to the pump body through the pressure maintaining valve cover 13, and the pressure maintaining valve core spring 11 attaches the right end face of the pressure maintaining valve core 12 to the pressure maintaining valve cover. The switch plunger spring 54 pushes up the switch plunger, thereby activating the micro switch to turn on the micro switch. When the machine is plugged with a power supply, the motor is electrified and rotates at a high speed, the water pressure in the pump head rapidly rises to push the pressure maintaining valve core 2 to move rightwards, high-pressure water flows out of the water outlet, the middle part of the pressure relief ejector rod 36 is communicated with the water outlet to form a high-pressure area, the pressure relief ejector rod is pushed to move upwards to cling to the steel ball, the upward water pressure resultant force borne by the lower end of the steel ball 31 is smaller than the spring force of the pressure regulating spring 28 when the machine normally works, so the steel ball 31 tightly clings to the overflow seat 32 when the machine normally works.
At the moment of closing the gun, the water outlet of the gun valve is closed, at the moment, the motor is not immediately powered off, the gun valve still operates, the pressure of the water outlet rises rapidly, the water pressure loss in a channel provided with a water outlet joint rises, the pressure at the lower end of a pressure relief ejector rod 36 rises, when the pressure is greater than the elastic force of a spring on the upper side of an overflow seat 32, the pressure relief ejector rod 36 jacks up a steel ball 31, high-pressure water flows back into a water inlet hole from a through hole on the pressure relief ejector rod 36, the pressure relief is finished on the left side of a pressure retaining valve, the right side of the pressure retaining valve still maintains certain high pressure, under the action of a pressure retaining valve reset spring 14, a pressure retaining valve core 2 is attached to the conical surface of a pump body through a sealing ring 1 to form sealing, the pressure exerted on the right side of a pressure stabilizing valve core 12 is greater than the spring force on the, the lower end of the switch ejector rod 51 is communicated with the left side of the pressure retaining valve, the lower end of the switch ejector rod 51 is a low-pressure area, the upper end of the switch ejector rod 51 is communicated with the water outlet connector 10 to keep high pressure, the pressure of the upper end of the switch ejector rod is larger than the spring force of the lower end, the switch ejector rod moves downwards to be separated from the microswitch, the microswitch is powered off, the motor stops working, the gun is shut down and pressure is retained, the gun is shut down and the low pressure retaining function is achieved, when the gun is restarted, the pressure of the high-pressure pipe is instantly unloaded, the pressure of the upper side of the switch ejector rod is smaller than the spring force of the lower.
Claims (10)
1. The utility model provides a high pressure cleaner closes rifle off-load stop device, a serial communication port, including setting up high-pressure outlet valve (16) between plunger pump water inlet and delivery port, pressure-regulating valve and pressure-maintaining valve have set gradually on the passageway of intercommunication between high-pressure outlet valve (16) play water one end and water connectors (10), be provided with the relief valve in the passageway of pressure-regulating valve lower extreme, the relief valve includes pressure release ejector pin (36), overflow seat (32) and steel ball (31), the passageway intercommunication of pressure release ejector pin (36) bottom and installation water connectors (17), be provided with the through-hole with the water inlet intercommunication in pressure release ejector pin (36), overflow seat (32) are installed pressure release ejector pin (36) upside, steel ball (31) are located on overflow seat (32), the pressure-maintaining valve includes pressure-maintaining valve lid (13), pressure-stabilizing valve core (12), pressure-maintaining valve core (2), The pressure maintaining valve comprises a pressure maintaining valve core spring (11) and a pressure maintaining valve return spring (14), one side of a pressure maintaining valve is connected with a water outlet connector (10) through the pressure maintaining valve return spring (14), the pressure maintaining valve core spring (11) is arranged between a pressure maintaining valve core (2) and a pressure maintaining valve core (12), the pressure maintaining valve return spring (14) is arranged between a pressure maintaining valve cover (13) and a water outlet connector, a micro switch device is arranged between the water outlet end of the pressure regulating valve and the water outlet connector (10), the micro switch device comprises a switch ejector rod (51) for driving a micro switch to be switched on and off, the lower side of the switch ejector rod (51) is communicated with a water outlet channel of the pressure regulating valve, and the upper;
after a gun is closed, the water pressure in the water outlet channel is rapidly increased, the pressure at the lower end of a pressure relief ejector rod (36) is increased, when the pressure is greater than the spring force of a pressure regulating valve, the pressure relief ejector rod (36) jacks up a steel ball (31), high-pressure water flows back into a water inlet hole from a water return hole on the pressure relief ejector rod, the left side of a pressure retaining valve is a low-pressure area, the right side of the pressure retaining valve still maintains certain high pressure, the pressure retaining valve is attached to a pump body and sealed, at the moment, the pressure on the right side of a pressure stabilizing valve core (12) is greater than the spring force on the left side, the pressure stabilizing valve core (12) is pushed to move leftwards, the pressure on the right side is unloaded into the pump body, when the pressure is unloaded to a set pressure, the pressure retaining valve core spring (11) pushes the pressure stabilizing valve core (12) to be attached to a pressure retaining valve cover, the upper end of the switch ejector rod (51) is communicated with a channel provided with a water outlet connector, the pressure at the upper end of the switch ejector rod (51) is greater than the spring force at the lower end, the switch ejector rod (51) is driven to move downwards to be separated from the microswitch (41), the microswitch (41) is powered off at the moment, the motor stops working, and the machine is shut down and low in pressure maintaining.
2. The high-pressure cleaning machine gun unloading stop device according to claim 1, wherein the pressure regulating valve comprises a pressure regulating plug (29), a pressure regulating spring (28), a spring seat (30), a pressure regulating rod (23) and a pressure regulating cap (40), the lower end of the pressure regulating plug (29) enables the spring seat (30) to be abutted against the steel ball through the pressure regulating spring (28), the upper end of the pressure regulating plug is provided with the pressure regulating rod (23) for driving the spring seat to move, and the pressure regulating rod (23) penetrates through the pressure regulating cap (40) and then is connected with a pressure regulating knob (22).
3. The high pressure washer shut-gun unloader that was taken off the stop of claim 2, wherein the spring retainer (30) was installed in a channel that communicates with the outlet end of the high pressure outlet valve and the pressure retaining valve.
4. The high pressure washer shut-off gun unloading stop device according to claim 1, characterized in that a suction nozzle (15) is installed in the water outlet joint (10), one side of the pressure retaining valve abuts against the water outlet channel of the pressure regulating valve and seals the pump body through a sealing ring, and the other end is connected with the suction nozzle (15) through a pressure retaining valve return spring (14).
5. The high-pressure cleaning machine gun unloading stop device according to claim 4, characterized by further comprising a soap liquid device, wherein the soap liquid device comprises a liquid suction joint (5), a liquid suction steel ball (7) is placed below the liquid suction joint (5) and is sealed above the liquid suction steel ball (7) through a sealing ring, a liquid suction spring (9) is arranged below the liquid suction steel ball (7), a cavity below the liquid suction steel ball (7) is communicated with an outlet of the liquid suction nozzle (15), when high-pressure water passes through the liquid suction nozzle (15), a negative pressure zone is formed at an outlet of the liquid suction nozzle through a siphon effect, and when the negative pressure of the negative pressure zone is greater than the elastic force of the liquid suction spring, the liquid suction steel ball (7) is driven to move downwards, the soap liquid is sucked into a water outlet joint through the liquid suction joint (5), and is mixed with the high-pressure water at.
6. The high pressure washer gun unloading shutdown device according to claim 1, wherein the switch ejector rod comprises an ejector rod seat and an ejector rod, the ejector rod is connected with the upper end of the ejector rod seat, the bottom of the ejector rod seat is communicated with the water outlet channel of the pressure regulating valve, the upper part of the ejector rod seat is communicated with a channel provided with a water outlet joint, and a switch ejector rod spring (54) is arranged between the bottom of the ejector rod seat and the water outlet channel of the pressure regulating valve.
7. The high pressure washer gun unloader according to claim 4, wherein the passage between the suction nozzle (15) and the water outlet fitting (10) is of a venturi structure.
8. The shut-off device with unloading of a high-pressure washer gun according to claim 1, characterized in that the overflow seat (32) is sealed with a channel fitted with a relief valve by means of a sealing ring (1).
9. The high-pressure washer gun unloading shutdown device according to claim 1, wherein the pressure relief ejector rod (36) is sealed with a channel for installing a pressure relief valve through a sealing ring (1).
10. The high-pressure washer gun unloader according to claim 1, wherein the pressure maintaining valve cartridge (2) is sealed with the pump body (55) by a seal ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010950958.2A CN112044619A (en) | 2020-09-11 | 2020-09-11 | High-pressure cleaning machine gun unloading stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010950958.2A CN112044619A (en) | 2020-09-11 | 2020-09-11 | High-pressure cleaning machine gun unloading stop device |
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| Publication Number | Publication Date |
|---|---|
| CN112044619A true CN112044619A (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010950958.2A Pending CN112044619A (en) | 2020-09-11 | 2020-09-11 | High-pressure cleaning machine gun unloading stop device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432027A (en) * | 2021-07-26 | 2021-09-24 | 郑州众城润滑科技有限公司 | Grease pump head and grease pump |
| WO2023050437A1 (en) * | 2021-09-30 | 2023-04-06 | 添可智能科技有限公司 | Cleaning device and pump structure |
-
2020
- 2020-09-11 CN CN202010950958.2A patent/CN112044619A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432027A (en) * | 2021-07-26 | 2021-09-24 | 郑州众城润滑科技有限公司 | Grease pump head and grease pump |
| WO2023050437A1 (en) * | 2021-09-30 | 2023-04-06 | 添可智能科技有限公司 | Cleaning device and pump structure |
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