CN204620274U - Fluidic device - Google Patents

Abstract

The utility model discloses a jet device, which comprises a casing (1), a coil (2), a striker (3), an elastic component (4), a stator (6) and a pressure chamber (7); the coil (2) Set on the stator (6), one end of the elastic component (4) abuts against the striker (3), and the other end abuts against the casing, the casing (1) communicates with the pressure chamber (7), and the striker (3) ) is set in the stator (6) and one end has the same aperture as the connection between the casing (1) and the pressure chamber (7), and the striker (3) is coaxial with the pressure chamber (7).

Description

Fluidic device

technical field

The utility model relates to a jet device.

Background technique

At present, the jet devices in the prior art all adopt high pressure from the outside, and adjust accordingly through the high-pressure nozzle or the internal structure of the jet device to provide the jet effect for the jet device. For example the following prior art:

Chinese patent CN 202590658 U discloses a mixed jet device, including a suction pipe, a throat pipe and a diffuser pipe connected in sequence, the central axes of the suction pipe, throat pipe and diffuser pipe are located on the same straight line, and it is characterized in that : the side wall of the suction pipe is provided with a first inflow pipe, and the center of the suction pipe is provided with an axial flow nozzle along the central axis, and the first inflow pipe is connected with the axial flow nozzle pipeline; A circular flow nozzle is formed on the periphery of the throat of the contact part, and the circular flow nozzle is opposite to the diffuser pipe, and a second inflow pipe connected with the circular flow nozzle is arranged on the side wall of the throat pipe.

Chinese patent CN 101837567 B discloses a water jet device, including: a mixing chamber in which abrasives and internal high-pressure water are mixed with each other to produce mixed water, and an inner nozzle is arranged at the lower end of the mixing chamber to discharge the mixing water; and an outer nozzle having the same shape as the mixing chamber, disposed outside the mixing chamber, and having a jet nozzle at a lower end of the outer nozzle in which a passage is defined so that the outer High-pressure water flows through the channel, wherein the outer nozzle is separated from the mixing chamber, thereby defining an inner and outer communication space between the inner nozzle and the jet nozzle to prevent backflow of the mixed water.

There are many structures that are essentially the same as the above two mixed jet devices. The above structure is to improve the internal structure of the jet device, the nozzle of the injection device, etc., or to add nozzles inside it, so that the jet device forms a high-pressure jet at the outlet. .

There are three disadvantages of such a structure:

The first is that when the medium (which can be liquid, solid-liquid mixed state, etc.) is ejected from the nozzle of the jet device and contacts it with the contact surface, it will produce a rebound force, and because the jet device ejects the medium for continuous jetting, Assuming that the pressure ejected from the jet device is 60MPa, due to the counteracting effect of the rebound force assumed to be 20MPa, the medium ejected from the final jet device can only provide a force of 40MPa when it finally contacts the contact surface, and this problem It cannot be solved by any jet device.

The second is that if the jet device is used for cleaning and other fields, then due to the offset of the rebound force, the work efficiency can only reach 60-70%, then it is necessary to use long-time flushing to make up for this problem, so that in principle, it can be used The cleaning task completed with one ton of water per hour now requires one and a half hours with two tons of water to complete the cleaning.

The third is that the jet device with the above structure is only suitable for liquid or solid-liquid mixed media. The reason is that its internal structure forms a certain resistance to the gaseous high pressure. Although the jet effect can be formed by improving the jet port of the jet device, unless it is applicable Objects require more jet ports than pressure requirements, such as tire inflation; otherwise, it is uneconomical relative to the utilization rate of the pressure supply device.

However, the Chinese patent CN 102242742B discloses a two-stage jet nozzle series giant magnetostrictive jet servo valve and its working method, including an upper end cover, a lower end cover, a giant magnetostrictive rod, an output rod, a coil frame, and a bias magnetic field generating unit and driving magnetic field generation unit. The above-mentioned lower end cover has a left valve core installation cavity and a right valve core installation cavity with the axis of the output rod as a symmetrical axis, and a group of valve core components are respectively installed in the left valve core installation cavity and the right valve core installation cavity. The contact parts of the right spool all form a wedge-shaped amplifying mechanism.

The above structure uses the magnetic effect of the coil to extend and shorten the giant magnetostrictive rod through the magnetic field generated by the power on and off to control the conduction and closure of the valve body. The technical problem it solves is only conduction and non-jet flow.

To sum up, it can be seen that the problems existing in the jet fluidic device in the prior art are low utilization rate and poor applicability.

Utility model content

Aiming at the problems in the prior art, the utility model provides a jet device with high utilization rate and strong applicability.

In order to achieve the above object, the technical solution of the utility model is: a fluidic device, including a housing, a coil, a striker, an elastic component, a stator and a pressure chamber; the coil is arranged on the stator, and one end of the elastic component is offset against the striker , the other end is against the housing, the housing communicates with the pressure chamber, the striker is arranged in the stator and one end has the same aperture as the connection between the housing and the pressure chamber, and the striker is coaxial with the pressure chamber.

According to the above scheme, it can be seen that a jet device of the present invention has the following advantages:

First of all, after the coil is energized, the striker makes a high-frequency reciprocating motion in the stator, and the pressure chamber is also connected with the pipeline for accessing the medium. Here, the pipeline can be a three-way. The liquid mixed state or solid medium is injected from the outlet of the tee with the momentum provided by the striker, and the pressure is formed in the pressure chamber and the tee. The jet device of this structure is no longer limited to the state of the medium, and adopts liquid, solid-liquid mixed state and Solid media are fine.

Secondly, the formation of high pressure is formed when the medium in the tee is sent to the outlet of the tee and formed in the pressure chamber when the firing pin reciprocates, and the pressure can be provided by adjusting the supply pressure of the tee and the outlet of the tee and the pressure The diameter of the lumen is very convenient to adjust.

Again, the impact of the firing pin ejects the high-pressure medium into discontinuity, which makes the rebound force of the previous medium after hitting the external contact surface and the high pressure of the next medium pushed out by the impact of the firing pin not offset, so that the jet device The impact effect is obvious and the work efficiency is high.

Preferably, the striker includes a first moving core and a second moving core, one end of the elastic component abuts against the first moving core, and the other end abuts against the outlet, and the second moving core is made of a magnetically permeable material and is arranged on a wire circle.

The striker is divided into the first moving core and the second moving core. The second moving core is made of pure magnetic material, which can move back and forth in the coil for a long time so as to provide greater momentum for the first moving core.

Preferably, the second moving core is a hollow structure.

Adopting a hollow structure for the second moving core can make electromagnetic energy provide higher momentum for the second moving core.

As an improvement, the fluidic device further includes an adjusting device for adjusting the stroke of the firing pin, and the adjusting device is installed on the casing and one end of the adjusting device abuts against the firing pin.

By adding an adjustment device to adjust the stroke of the firing pin, the stroke of the firing pin and the starting point of the cutting magnetic force line of the second moving core can be adjusted. By adjusting the stroke of the second moving core in the firing pin, the maximum speed that the firing pin can reach at the exit can be adjusted, and finally the jet can be adjusted. At the same time, the adjusting device can adjust the starting point of the cutting magnetic force line of the second moving core, so that when the coil is energized, the second moving core can reach the maximum momentum.

As an improvement, the adjustable device includes a second elastic component, a push rod, a bolt and a stopper, one end of the second elastic component abuts against the casing, and the other end abuts against the push rod, and the push rod passes through the casing and Screwed through the stopper and the bolt.

By adjusting the position of the push rod to adjust the position of the stopper, and because the stopper can block the stroke of the striker and limit the position of the initial cutting magnetic force line of the second moving core, the stroke and initial momentum of the striker are adjusted according to the push rod, and finally make the pass Adjusting the push rod can directly adjust the jet pressure formed by the medium at the outlet.

As an improvement, the housing includes a first housing part and a second housing part, and the first housing part and the second housing part are detachable structures.

Adopting the detachable connection can make the installation and maintenance convenient, and it is convenient to replace a single part of the fluidic device shell according to the pressure requirement, and the product does not need to be replaced, so that the practicability is strong.

Description of drawings

Accompanying drawing 1 is the structure schematic diagram of the fluidic device of the present utility model.

Accompanying drawing 2 is the schematic structural diagram of the fluidic device of the present invention.

Accompanying drawing 3 is the sectional view of the fluidic device of the present invention.

Accompanying drawing 4 is the sectional view of the fluidic device of the present invention.

Accompanying drawing 5 is the sectional view of the fluidic device of the present invention.

As shown in the figure: 1. Shell, 1.1, first shell part, 1.2, second shell part, 2, coil, 3, firing pin, 3.1, first moving core, 3.2, second moving core, 4, Elastic assembly, 5, adjusting device, 5.1, second elastic component, 5.2, push rod, 5.3, bolt, 5.4, stopper, 6, stator, 7, pressure chamber, 8, tee.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Concrete structure of the present utility model is shown in accompanying drawing 1,2,3 and 4:

A fluidic device, comprising a housing 1, a coil 2, a striker 3, an elastic assembly 4, a stator 6 and a pressure chamber 7; the coil 2 is arranged on the stator 6, one end of the elastic assembly 4 is against the striker 3, and the other end Against the housing, the housing 1 communicates with the pressure chamber 7, the striker 3 is set in the stator 6 and one end has the same aperture as the connection between the housing 1 and the pressure chamber 7, the striker 3 communicates with the pressure chamber 7 Concentric; the striker 3 includes a first moving core 3.1 and a second moving core 3.2, one end of the elastic component 4 is against the first moving core 3.1, and the other end is against the connection between the housing 1 and the pressure chamber 7, The second moving core 3.2 is made of magnetically conductive material and is arranged in the coil 2; the second moving core 3.2 is a hollow structure; the fluidic device also includes an adjustment device 5 for adjusting the stroke of the striker 3, the The adjustment device 5 is installed on the housing 1 and one end is against the striker 3; the adjustable device 5 includes a second elastic member 5.1, a push rod 5.2, a bolt 5.3 and a stopper 5.4, and one end of the second elastic member 5.1 is connected to the shell The body 1 is against each other, and the other end is against the push rod 5.2. The push rod 5.2 passes through the casing 1 and is screwed with the bolt 5.3 through the stopper 5.4; the casing 1 includes the first casing part 1.1, the second casing Part 1.2, the first shell part 1.1 and the second shell part 1.2 are detachable structures.

The working state of the jet device of the utility model: the coil is energized, and the striker is made of magnetically conductive material. Due to the magnetic effect of the coil and the elastic force of the elastic component, the striker starts to reciprocate in the coil, and at the same time, the striker is divided into the first movement. core and the second moving core. The second moving core is made of magnetically conductive material with high purity. After the coil is energized, the second moving core begins to impact the first moving core. When the first moving core and the second moving core After the impact at the exit, due to the elastic force of the first elastic part, the first moving core and the second moving core move towards the bottom of the housing, and then continue to move in the direction of the first moving core through coil magnetization, and then perform high-frequency reciprocating motion. The housing 1 communicates with the pressure chamber 7, and a tee 8 is connected to the outlet of the pressure chamber 7, and the jet medium is passed into the tee 8, and the medium is injected at high pressure from the other outlet of the tee 8 through the impact of the striker of the jet device. Thus forming a high-pressure jet, the medium can be a dry ice solid medium or a solid-liquid mixed medium of quartz sand and water or water or other liquid medium.

At the same time, the pressure on the tee and the pressure chamber can further accelerate the return of the first moving core and the second moving core to the bottom of the shell, thereby accelerating the reciprocating motion of the first moving core and the second moving core. The pressure of the medium can be adjusted.

Using this jet device can effectively solve the following problems:

The place where the impact is formed is the striker or the first moving core. The formation of high pressure is formed when the striker reciprocates and sends the medium in the powerful chamber to the outlet of the tee. The pressure can be provided by adjusting the diameter of the pressure chamber, the three-way It is very convenient to adjust the supply pressure of the tee and the size of the outlet of the tee.

The impact of the firing pin ejects the high-pressure medium into discontinuity, which makes the rebound force of the previous medium after hitting the external contact surface and the high pressure of the next medium pushed out by the impact of the firing pin not offset, making the impact effect of the jet device Obviously, the work efficiency is high.

The liquid, solid-liquid mixed state or solid medium is passed into the tee, and then the momentum is provided by the striker and ejected from the outlet on the shell. The jet device of this structure is no longer limited to the state of the medium, and adopts liquid, solid-liquid mixed state and Solid media are fine.

The detachable connection of the shell can make the installation and maintenance convenient, and it is convenient to replace a single part of the jet device shell according to the pressure demand, and the practicability is strong without replacing the product.

It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solutions described in the embodiments of the utility model. Those of ordinary skill in the art should understand that the utility model can still be Modifications or equivalent replacements are carried out to achieve the same technical effect; as long as the needs of use are met, they are all within the protection scope of the present utility model.

Claims (6)

1. A fluidic device, characterized in that: comprising a housing (1), a coil (2), a striker (3), an elastic assembly (4), a stator (6) and a pressure chamber (7); the coil (2 ) is set on the stator (6), one end of the elastic component (4) is against the striker (3), and the other end is against the shell, the shell (1) communicates with the pressure chamber (7), and the striker ( 3) It is arranged in the stator (6) and has the same aperture at one end as the connection between the housing (1) and the pressure chamber (7), and the striker (3) is coaxial with the pressure chamber (7). 2. The fluidic device according to claim 1, characterized in that: the striker (3) includes a first moving core (3.1) and a second moving core (3.2), and one end of the elastic component (4) is connected to the first The moving core (3.1) abuts, and the other end abuts against the connection between the housing (1) and the pressure chamber (7). The second moving core (3.2) is made of magnetically permeable material and is arranged in the coil (2). 3. The fluidic device according to claim 2, characterized in that the second moving core (3.2) is a hollow structure. 4. The fluidic device according to claim 1, characterized in that: the fluidic device further comprises an adjustment device (5) for adjusting the stroke of the striker (3), and the adjustment device (5) is installed in the casing (1 ) and one end against the firing pin (3). 5. The fluidic device according to claim 4, characterized in that: the adjustable device (5) comprises a second elastic member (5.1), a push rod (5.2), a bolt (5.3) and a stopper (5.4), One end of the second elastic member (5.1) is against the casing (1), and the other end is against the push rod (5.2). The push rod (5.2) passes through the casing (1) and passes through the stopper (5.4) and The bolt (5.3) is screwed. 6. The fluidic device according to claim 1, characterized in that: the housing (1) comprises a first housing part (1.1), a second housing part (1.2), and the first housing part ( 1.1), the second housing part (1.2) is a detachable structure.