阅读说明：本技术 基于间歇性有压流体的单循环定量添加阀及使用方法 (Single-circulation quantitative adding valve based on intermittent pressurized fluid and using method ) 是由 孟祥柳 于 2020-03-19 设计创作，主要内容包括：本发明公开了一种基于间歇性有压流体的单循环定量添加阀,包括压力源通道(10),储液器(12)以及阀体(3),所述阀体(3)内设置有阀芯(2)；所述阀芯(2)的上,下端面分别设置有压缩腔Ⅰ(14)和压缩腔Ⅱ(11)；所述压力源通道(10)通过压力出口Ⅰ连通压缩腔Ⅰ(14)；所述压缩腔Ⅱ(11)与储液器(12)相连通；所述连通压缩腔Ⅱ(11)与储液器(12)的通道Ⅱ内设置有单向阀Ⅰ；所述单向阀Ⅰ的进油口在储液器(12)一端,出油口在压缩腔Ⅱ(11)一端；所述压缩腔Ⅱ(11)上设置有输出通道(20)。(The invention discloses a single-circulation quantitative adding valve based on intermittent pressure fluid, which comprises a pressure source channel (10), a liquid reservoir (12) and a valve body (3), wherein a valve core (2) is arranged in the valve body (3); the upper end surface and the lower end surface of the valve core (2) are respectively provided with a compression cavity I (14) and a compression cavity II (11); the pressure source channel (10) is communicated with a compression cavity I (14) through a pressure outlet I; the compression cavity II (11) is communicated with a liquid storage device (12); a one-way valve I is arranged in a channel II for communicating the compression cavity II (11) with the liquid reservoir (12); an oil inlet of the one-way valve I is arranged at one end of the liquid reservoir (12), and an oil outlet of the one-way valve I is arranged at one end of the compression cavity II (11); and an output channel (20) is arranged on the compression cavity II (11).)

1. The single-circulation quantitative adding valve based on intermittent pressure fluid comprises a pressure source channel (10), a liquid reservoir (12) and a valve body (3), wherein a valve core (2) is arranged in the valve body (3); the upper end surface and the lower end surface of the valve core (2) are respectively provided with a compression cavity I (14) and a compression cavity II (11); the pressure source channel (10) is communicated with a compression cavity I (14) through a pressure outlet I; the method is characterized in that: the compression cavity II (11) is communicated with a liquid storage device (12);

a one-way valve I is arranged in a channel II for communicating the compression cavity II (11) with the liquid reservoir (12);

an oil inlet of the one-way valve I is arranged at one end of the liquid reservoir (12), and an oil outlet of the one-way valve I is arranged at one end of the compression cavity II (11);

and an output channel (20) is arranged on the compression cavity II (11).

2. The intermittent pressurized fluid-based single cycle metered addition valve of claim 1, wherein: the area of the upper end surface of the valve core (2) is larger than that of the lower end surface.

3. The intermittent pressurized fluid-based single cycle metered addition valve of claim 1, wherein: the output channel (20) is at least provided with an output port, and the output port is provided with an oil nozzle with a pressure applying plug.

4. The intermittent pressurized fluid-based single cycle metered addition valve of claim 1, wherein: a one-way valve II is arranged at a pressure outlet II between the pressure source channel (10) and the liquid reservoir (12);

the air inlet of the one-way valve II is arranged at one end of the pressure source channel (10), and the air outlet is arranged at one end of the liquid reservoir (12);

a hose is arranged in the liquid storage device (12);

one end of the hose is communicated with an oil inlet of the one-way valve I, and the other end of the hose is provided with a counterweight suction head.

5. The intermittent pressurized fluid-based single cycle metered addition valve of claim 1, wherein: and distance adjusting devices are arranged between the valve bodies (3) and the valve cores (2).

6. The intermittent pressurized fluid-based single cycle metered addition valve of claim 1, wherein: the valve core (2) is T-shaped;

the valve body (3) is internally provided with a T-shaped cavity relative to the valve core (2);

and a pressure discharge channel (13) is arranged on the linear structure cavity of the valve body (3).

7. The intermittent pressurized fluid-based single cycle metered addition valve of claim 1 or 6, wherein: and an elastic body is arranged on the lower side surface of the valve core (2).

8. The method for using the automatic quantitative adding valve based on intermittent pressurized fluid as claimed in claim 7, wherein: firstly, setting a use environment;

secondly, setting the displacement distance of the valve core (2) according to the use environment;

and finally, inputting pressure gas through a pressure source channel (10), completing pressure change between a compression cavity I (14) and a compression cavity II (11) through the on-off of the pressure gas, and controlling the valve core (2) to switch between the working position 1 and the working position 2 through the pressure change.

9. The method for using the automatic quantitative adding valve based on intermittent pressurized fluid as claimed in claim 8, wherein: in the first case:

when the pressure source channel (10) outputs air pressure, on one hand, the pressure outlet II inputs the pressure into the liquid storage device (12), and the liquid storage device (12) stores the pressure;

meanwhile, the pressure output by the pressure outlet I acts on the valve core (2), and the valve core (2) is pressed down along the valve body (3) through the pressure;

in the second case:

when the pressure source channel (10) outputs air pressure, on one hand, the pressure outlet II inputs the pressure into the liquid storage device (12), and the liquid storage device (12) stores the pressure;

meanwhile, the pressure output by the pressure outlet I acts on the valve core (2), the valve core (2) is pressed down along the valve body (3) through the pressure, and the spring (21) is compressed.

10. The method for using the automatic quantitative adding valve based on intermittent pressurized fluid as claimed in claim 9, wherein: in the first case:

when the pressure source channel (10) stops outputting air pressure, on one hand, the pressure outlet II stops inputting pressure into the liquid storage device (12), and the liquid substance is output into the compression cavity II (11) by the liquid storage device (12) through pressure storage;

meanwhile, the pressure outlet I does not output pressure to act on the valve core (2), and the valve core (2) returns to the original position along the valve body (3) through the pressure of liquid substances in the compression cavity II (11);

in the second case:

when the pressure source channel (10) stops outputting air pressure, on one hand, the pressure outlet II stops inputting pressure into the liquid storage device (12), and the liquid substance is output into the compression cavity II (11) by the liquid storage device (12) through pressure storage;

meanwhile, the pressure outlet I does not output pressure to act on the valve core (2), and the valve core (2) returns to the original position along the valve body (3) through the elastic force of the spring (21) and the pressure of liquid substances in the compression cavity II (11).

Technical Field

The invention relates to a valve, in particular to a single-circulation quantitative adding valve based on intermittent pressurized fluid.

Background

The pneumatic technology is a technology for energy transfer by taking an air compressor as a power source and compressed air as a working medium, has the characteristics of high speed, high efficiency, cleanness, safety, low cost and the like, and is very wide in application. However, the pneumatic device, as a relatively precise device, has high requirements on lubrication, and related product defects in the prior art are often related to lubrication, such as:

1. maintenance is tedious: the equipment needs to be lubricated after the screw is manually disassembled, so that the maintenance period is short and the operation is frequent;

2. the structure is complicated: when the pneumatic equipment works, the leakage phenomenon caused by rhythm exists in the interface and the pipeline, so that the oil mist cannot be effectively conveyed to a target workpiece;

3. and (3) limiting the working environment: in actual operation, it is difficult to add lubricating oil timely and locally to perform standard maintenance work;

4. the requirement on the working environment is high: oil feeding and lubrication are required according to the working cycle condition of the pneumatic equipment;

5. the real working environment is complex: the existing pneumatic lubrication equipment is harsh to the use environment, the lubrication effect of the pneumatic equipment is poor in a complex environment, the output power of the pneumatic equipment needs to be guaranteed, the operation requirement is met, the use of an air source far exceeding the rated pressure is a common method, and the pneumatic equipment is undoubtedly trapped in vicious circle in the work environment; based on the results generated by the above reasons, such as common pneumatic equipment air cannon, air pick, pneumatic angle grinder, air batch and the like, the universal service life of the pneumatic equipment air cannon, air pick, pneumatic angle grinder, air batch and the like is only 40-70% of the theoretical service life; for example, the most commonly used oil mister (for adding pneumatic lubricating oil) in the existing pneumatic equipment sucks up oil in an oil cup through pressure difference, the oil flows into an oil viewing window through a throttle valve, the oil is atomized by a high-speed airflow after dropping from a small hole above an oil dropper, and then the atomized oil flows into a pneumatic element along with the airflow, so that the lubrication of the pneumatic equipment is realized. In addition, because the pneumatic equipment, such as a wind cannon, is complex in use environment and needs to be turned frequently in the actual use process, and the oil atomizer is based on a differential pressure principle, and sucks oil in the liquid storage cavity through the siphon pipe, the installation direction of the oil atomizer is extremely strictly limited, the oil atomizer is obviously not suitable for equipment, such as the wind cannon, which needs to be turned frequently in the use process, so that the oil atomizer is often installed on air source equipment and then connected with the pneumatic equipment through a pipeline in the actual use process, and in the mode, 1, due to the intervention of the pipeline, the phenomenon of oil leakage is easily generated on a joint (or the aging state of the joint) of the pipeline; 2. due to the length of the pipe, oil mist is prone to condense on the inner wall of the pipe inside the pipe.

Based on the above current situation, in some advanced pneumatic devices, technologies such as a pneumatic system oil lubricating device disclosed in patent application No. 2016111192146, a micro-lubricating system precise lubricating pump disclosed in patent application No. 2014106103020, and a simple oil mist generator disclosed in patent application No. 2010202335651 are adopted to solve the above related problems.

Disclosure of Invention

The invention aims to provide an automatic quantitative adding valve based on intermittent pressure fluid, which is simple in structure.

In order to solve the technical problem, the invention provides a single-circulation quantitative adding valve based on intermittent pressure fluid, which comprises a pressure source channel, a liquid reservoir and a valve body, wherein a valve core is arranged in the valve body; the upper end surface and the lower end surface of the valve core are respectively provided with a compression cavity I and a compression cavity II; the pressure source channel is communicated with the compression cavity I through a pressure outlet I; the compression cavity II is communicated with the liquid reservoir; a one-way valve I is arranged in a channel II for communicating the compression cavity II with the liquid reservoir; an oil inlet of the one-way valve I is arranged at one end of the liquid reservoir, and an oil outlet of the one-way valve I is arranged at one end of the compression cavity II; and an output channel is arranged on the compression cavity II.

The improvement of the single-circulation quantitative adding valve based on intermittent pressurized fluid is as follows: the area of the upper end face of the valve core is larger than that of the lower end face.

As a further improvement of the single-circulation quantitative adding valve based on intermittent pressurized fluid, the invention comprises the following steps: the oil injection device is characterized in that at least one output port is arranged on the output channel, and an oil injection nozzle with a pressure plug is arranged on the output port.

As a further improvement of the single-circulation quantitative adding valve based on intermittent pressurized fluid, the invention comprises the following steps: a one-way valve II is arranged at a pressure outlet II between the pressure source channel and the liquid reservoir; the air inlet of the one-way valve II is arranged at one end of the pressure source channel, and the air outlet is arranged at one end of the liquid reservoir; a hose is arranged in the liquid storage device; one end of the hose is communicated with an oil inlet of the one-way valve I, and the other end of the hose is provided with a counterweight suction head.

As a further improvement of the single-circulation quantitative adding valve based on intermittent pressurized fluid, the invention comprises the following steps: and distance adjusting devices are arranged between the valve cores of the valve body.

As a further improvement of the single-circulation quantitative adding valve based on intermittent pressurized fluid, the invention comprises the following steps: the valve core is T-shaped; a T-shaped cavity is arranged in the valve body relative to the valve core; and a pressure discharge channel is arranged on the linear structure cavity of the valve body.

As a further improvement of the single-circulation quantitative adding valve based on intermittent pressurized fluid, the invention comprises the following steps: and an elastic body is arranged on the lower side surface of the valve core.

A method for using an automatic quantitative adding valve based on intermittent pressure fluid comprises the following steps of firstly setting a use environment; secondly, setting the displacement distance of the valve core according to the use environment; and finally, inputting pressure gas through a pressure source channel, completing pressure change between the compression cavity I and the compression cavity II through the on-off of the pressure gas, and controlling the valve core to switch between the station 1 and the station 2 through the pressure change.

The invention relates to an improvement of the usage method of the automatic quantitative adding valve based on intermittent pressurized fluid, which comprises the following steps: in the first case: when the pressure source channel outputs air pressure, on one hand, the pressure outlet II inputs the pressure into the liquid storage device, and the liquid storage device stores the pressure; meanwhile, the pressure output by the pressure outlet I acts on the valve core, and the valve core is pressed down along the valve body through the pressure; in the second case: when the pressure source channel outputs air pressure, on one hand, the pressure outlet II inputs the pressure into the liquid storage device, and the liquid storage device stores the pressure; meanwhile, the pressure output by the pressure outlet I acts on the valve core, the valve core is pressed down along the valve body through the pressure, and the spring is compressed.

As a further improvement of the use method of the automatic quantitative adding valve based on intermittent pressurized fluid, the method comprises the following steps: in the first case: when the pressure source channel stops outputting air pressure, on one hand, the pressure outlet II stops inputting pressure into the liquid storage device, and the liquid substance is output into the compression cavity II by the liquid storage device through pressure storage; meanwhile, the pressure outlet I does not output pressure to act on the valve core any more, and the valve core returns to the original position along the valve body through the pressure of liquid substances in the compression cavity II; in the second case: when the pressure source channel stops outputting air pressure, on one hand, the pressure outlet II stops inputting pressure into the liquid storage device, and the liquid substance is output into the compression cavity II by the liquid storage device through pressure storage; meanwhile, the pressure outlet I does not output pressure to act on the valve core any more, and the valve core returns to the original position along the valve body through the elastic force of the spring and the pressure of liquid substances in the compression cavity II.

The design idea of the invention is as follows: the method is characterized in that the pressure and the pressure generated by the pressurized fluid required by the pneumatic equipment during working are intermittent, the valve core is enabled to pressurize the fluid medium in the compression cavity through the cooperation of the structure based on the generated pressure change, the pressurized fluid medium is injected onto a target workpiece through the oil mist nozzle, when the pressure and the pressure generated by the pressurized fluid required by the pneumatic equipment during working are weakened or disappeared, the pressure in the compression cavity or the reset mechanism is utilized to reversely pressurize the valve core, so that the valve core is restored to the initial position, and the aim of cleaning or lubricating the target workpiece is fulfilled by circulating the method. The structure of the valve comprises a liquid storage device and a valve body, wherein a valve core is arranged in the valve body; a compression cavity is arranged between the valve body and the valve core; the compression cavity is communicated with the liquid storage device; the compression cavity is provided with an output channel; and the upper end of the valve body is provided with a control channel.

The invention relates to an automatic quantitative adding valve based on intermittent pressurized fluid, which is a valve component structure capable of being connected in series with a control flow pipeline or arranged in the inner space of a workpiece, and is improved based on the actual defects of the existing equipment, and mainly has the following advantages:

1. the structure is simple, and the work is completed mainly through the valve core, the oil storage cavity and the compression cavity;

2. the failure rate is low, and the relative stability is high due to fewer components;

3. the operability is strong, the current injection amount of the lubricating oil can be controlled by setting or adjusting the effective stroke of the working position of the valve core, and the amount is relatively fixed;

4. the efficiency is high, and the requirement of the equipment for long-time operation can be met by filling the liquid storage device once;

5. the volume is small, and the structure is simplified, so that the volume can be subjected to integrated miniaturization treatment, and the influence on the processing cost is small;

6. the valve assembly has strong universality, most of fluid media can be quantitatively added or controlled through the valve assembly, and applicable fluid objects are determined by materials and take small values in an allowable range;

7. the modification cost is low, the modification can be completed only by performing conventional firmware addition or structure planning on the existing equipment, and the volume advantage greatly improves the applied capacity and range of the equipment;

8. the compressed fluid can generate an atomization effect through the arrangement of the pipeline structure, so that the lubricating efficiency of the air passage is improved;

9. the automation degree is high, the response speed is high, a power source is provided through the pressure intensity, and the working state is entered along with the pressure intensity change. (ii) a

10. The pneumatic device is suitable for a plurality of products, and can lubricate or clean most pneumatic equipment such as a pneumatic air gun, an air pick, a pneumatic angle grinder, an air screwdriver and the like.

The distinguishing characteristic points between the prior art are as follows:

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the principal structure of the present invention;

FIG. 2 is a schematic view of another configuration of FIG. 1;

fig. 3 is a main structural schematic diagram of the housing 1 in fig. 1;

fig. 4 is a main structural schematic diagram of the valve body 3 in fig. 1;

fig. 5 is a schematic top view of the valve body 3 of fig. 1;

fig. 6 is a main structural schematic diagram of the valve cartridge 2 in fig. 1;

fig. 7 is a schematic top view of the valve cartridge 2 of fig. 1;

fig. 8 is a schematic view of another configuration of fig. 2.

Detailed Description