CN218423484U

CN218423484U - Fine adjustment type electromagnetic driving structure

Info

Publication number: CN218423484U
Application number: CN202222099459.4U
Authority: CN
Inventors: 卢革委; 卢如栩
Original assignee: Zhejiang Boma Electromechanical Technology Co ltd
Current assignee: Zhejiang Boma Electromechanical Technology Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-02-03
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a fine-tuning electromagnetic driving structure, which comprises an action piece, an electromagnetic coil for driving the action piece to move axially on one side, and a reset structure for driving the action piece to reset; the electromagnetic coil circumferentially surrounds the action piece, and the tail end of the action piece is connected with a bolt for acting and responding to the electromagnetic coil. The utility model discloses an action reciprocating motion of solenoid and reset structure drive, on being applied to the spray gun with it, can need not external air pump through the punctiform injection effect of action striking nozzle in order to realize traditional spray gun for the structure on the spray gun is simplified, and external pipeline reduces, is favorable to increasing the simple operation nature.

Description

Fine adjustment type electromagnetic driving structure

Technical Field

The utility model relates to a spray gun field, very much relates to a fine-tuning electromagnetic drive structure.

Background

In order to ensure that the sprayed liquid can form punctiform liquid drops and be uniformly sprayed, the traditional spray gun generally needs to be connected with an air pump, and the liquid is pumped by negative pressure generated by compressed air so as to be sprayed out from a nozzle.

The spray gun is connected with the liquid supply device and the air outlet devices such as the air pump in such a way, so that the spray gun has multiple pipelines and a complex structure, certain preparation work is required before use, the operation is complicated, the pipeline needs to be arranged constantly to avoid pulling and knotting in use, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical problem mentioned in the background art, the present invention provides a fine-tuning electromagnetic driving structure to simplify the structure of the spray gun under the function of maintaining high-efficiency spraying.

In order to achieve the above object, the utility model provides a following technical scheme:

a fine-tuning electromagnetic driving structure comprises an action piece, an electromagnetic coil and a reset structure, wherein the electromagnetic coil is used for driving the action piece to axially move on one side, and the reset structure is used for driving the action piece to reset; the electromagnetic coil circumferentially surrounds the action piece, and the tail end of the action piece is connected with a bolt for acting and responding to the electromagnetic coil.

Compared with the prior art, the beneficial effects of the utility model are that: through solenoid and the reciprocating motion of an action spare of reset structure drive, be applied to the spray gun with it on, can be through the punctiform injection effect of action spare striking nozzle in order to realize traditional spray gun, need not external air pump for the structure on the spray gun is simplified, and external pipeline reduces, is favorable to increasing the simple operation nature.

The electromagnetic coil is driven to act through the magnetic field, a magnetic field is generated when the electromagnetic coil is switched on, instantaneous driving force can be generated for the acting piece, response is quick, and the driving effect is strong.

Furthermore, the reset structure comprises an ejector rod, one end of the ejector rod is abutted to the bolt, the other end of the ejector rod is connected with a spring, the spring provides thrust towards one side of the bolt along the axial direction for the ejector rod, continuous ejection force is provided, and the action is flexible.

Furthermore, the driving structure further comprises a shell, and the action piece, the bolt and the ejector rod are all sleeved in the shell in a penetrating manner.

Furthermore, one end of the shell is provided with an adjuster, the adjuster comprises an ejector block in threaded connection with the shell, and two ends of the spring respectively abut against the ejector rod and the ejector block, so that the tightness of the spring can be conveniently adjusted.

Furthermore, the driving structure further comprises a stop pin, the stop pin is located on one side, deviating from the action piece, of the bolt in the axial direction, and the stop pin is used for replacing a spring to counteract the inertia force of the bolt, so that the bolt can have higher frequency.

Furthermore, the stop pin is in threaded connection with the shell, so that the movable space of the bolt can be conveniently adjusted.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the whole structure of the spray gun of the present invention.

In the figure: 11. a liquid chamber; 2. a nozzle; 3. a valve body; 31. a liquid inlet passage; 4. an electromagnetic coil; 5. an action member; 51. a bolt; 6. a top rod; 61. a spring; 62. a regulator; 7. and (7) a stop pin.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present embodiment provides a trimming electromagnetic driving structure, which is applied in a spray gun to control and realize a spraying function of the spray gun; a nozzle 2 is installed at one end of the spray gun, a liquid cavity 11 is arranged inside the spray gun, liquid is filled in the liquid cavity 11, and the liquid is sprayed out from the nozzle 2 after a certain pressure is applied; traditional spray gun can form punctiform liquid drop, evenly spray in order to guarantee spun liquid, generally need connect the air pump, through compressed air and liquid mixing, through air pressure with liquid from 2 punctiform blowout of nozzle, such mode makes the spray gun need connect air outlet means such as air pump, the pipeline on the spray gun is many, the structure is complicated, the preparation work in the use is loaded down with trivial details, the operation is inconvenient.

In the embodiment, a compressed air suction mode is not adopted, but a common thimble structure used for blocking a nozzle 2 opening in the spray gun is improved into the action piece 5 in the embodiment, the head of the action piece 5 is abutted against a liquid channel of the nozzle 2, and when the spray gun is not used, the action piece 5 blocks the nozzle 2, so that liquid in the liquid cavity 11 does not leak under a static state; when the liquid jet nozzle is used, liquid is poured into the liquid cavity 11 at a certain pressure, at this time, the action piece 5 is driven to reciprocate axially, so that the head of the action piece 5 repeatedly impacts the inner side of the nozzle 2, and under a certain impact strength, the liquid at the liquid channel of the nozzle 2 is quickly extruded and flushed out under impact, so that point-shaped liquid drops are formed at the nozzle 2 to be jetted out, and the jetting effect at the nozzle 2 is fully continuous due to repeated high-frequency impact.

In order to ensure good spraying effect during impact, the nozzle 2 is constructed to comprise a through hole, the inner side of the nozzle 2 is a concave spherical surface, the inner end opening of the through hole is positioned in the center of the spherical surface, the thimble is used for blocking the end part of the nozzle 2 to be a round head matched with the spherical surface, during impact, the round head extrudes liquid at the spherical surface into the through hole, the liquid rapidly passes through the through hole with small size under such rapid impact and is subjected to great pressure, and therefore when the liquid is extruded from the through hole under the pressure, the liquid is scattered into a point shape by releasing the pressure; the mode has good adaptability to liquid with different viscosities, and the spraying effect can be realized by increasing proper impact force to liquid with large viscosity, so that the adaptability is strong.

In order to drive the reciprocating motion of the actuating member 5, in this embodiment, a form of a resetting structure matched with the electromagnetic coil 4 is adopted to generate a back-and-forth driving force for the actuating member 5, specifically, the electromagnetic coil 4 is arranged to surround the spray gun, at this time, the head end of the actuating member 5 is abutted to the nozzle 2, the tail end of the actuating member 5 is fixedly connected with a bolt 51, the bolt 51 can be attracted by magnetic force, the bolt 51 is slidably sleeved in the spray gun, the position of the bolt 51 is just close to the center of the electromagnetic coil 4 in the axial direction but not beyond the axial direction, when the electromagnetic coil 4 is powered on, an axial traction force for the bolt 51 is generated, so as to drive the head end of the actuating member 5 to be separated from the nozzle 2, and after the electromagnetic coil 4 is powered off, the traction force disappears.

After the traction force disappears, the bolt 51 and the action piece 5 are reset through a reset structure, and the reset force provided by the reset structure to the action piece 5 enables the action piece 5 to impact the nozzle 2, so that the spraying effect is realized; specifically, the reset structure is a push rod 6 which axially abuts against the bolt 51, the push rod 6 is movably sleeved in the spray gun, one end of the push rod 6 abuts against the bolt 51, the other end of the push rod 6 is provided with a spring 61, and the spring 61 provides an ejecting force for the push rod 6, so that the push rod 6 can eject the bolt 51.

Correspondingly, the ejection force of the ejector rod 6 on the plug pin 51 is determined by the elastic force and the tensile force of the spring 61, so that the impact force of the action piece 5 on the nozzle 2 is directly determined, the liquid outlet speed and the ejection effect of the nozzle 2 are determined, and then the type of the spring 61 in the embodiment can be changed according to the required impact effect, the impact force can be changed by changing the spring 61 with different force, or the ejection force on the action piece 5 can be changed by adjusting the tensile effect of the spring 61, specifically, the tail part of the spray gun is provided with an adjuster 62, the adjuster 62 comprises an ejector block which is in threaded connection with the tail end of the nozzle 2, two ends of the spring 61 respectively abut against the ejector rod 6 and the ejector block, and the distance between the adjuster 62 and the ejector rod 6 is changed by rotating the adjuster 62, so that the tensioning adjustment of the spring 61 is realized, and the force path is changed.

For the concrete structure of spray gun, in order to guarantee to simplify the structure, guarantee inside liquid mobility and leakproofness, the spray gun includes a pipy casing, liquid chamber 11 is located in the casing, nozzle 2 install in casing axial wherein one end, regulator 62 install in casing axial other end, action piece 5, bolt 51, ejector pin 6, spring 61 etc. all locate in the casing, and for the installation solenoid 4, the spray gun is installed one on the valve body 3, solenoid 4 encircles and locates on the casing and be fixed in on the valve body 3 to realize supporting fixed effect.

Preferably, control grab handle, switch, circuit wiring, liquid pipeline etc. of spray gun can combine in valve body 3, also be provided with a intercommunication on valve body 3 in the spray gun the feed liquor way 31 of sap cavity 11, through outside inlet means to pour into liquid and provide certain hydraulic pressure in the sap cavity 11.

It should be added that, for the action member 5, which is subjected to the combined action of the driving force generated by the electromagnetic coil 4 and the restoring force generated by the spring 61 during the operation, the driving force generated by the on-off of the electromagnetic coil 4 is instantaneous, and the driving effect is fast and violent, but the elastic member of the spring 61 has inertia effect and time delay property, so when the electromagnetic coil 4 starts to drive the latch 51 to act, the force drives the spring 61 to compress, and when the electromagnetic coil 4 is off, the latch 51 still has the inertia of the compression spring 61, and the spring 61 needs to counteract the inertia and then pushes back to restore.

Under the effect, firstly, the action stroke of the action piece 5 is relatively large, a larger internal space is needed, and when a strong impact force is needed, a larger electromagnetic driving force is needed, and the inertia of the bolt 51 is increased due to the large electromagnetic driving force, so that the time required by the spring 61 to counteract the inertia is also increased, so that the time required by the action piece 5 to complete one stroke is increased.

Therefore, in order to solve the above mentioned problems, in this embodiment, a stop pin 7 is additionally arranged in the housing, the stop pin 7 is located on one side of the plug pin 51 facing away from the acting element 5 in the axial direction, the stop pin 7 is hollow so as to facilitate the push rod 6 to pass through to facilitate the push rod 6 to abut against the plug pin 51, by presetting a distance between the stop pin 7 and the plug pin 51 in a natural state, when the electromagnetic coil 4 is switched on, the plug pin 51 directly collides against the stop pin 7 after moving through the distance, and then the spring 61 is replaced to perform the resolution of the inertia force, so that the plug pin 51 can be directly stopped, and after the electromagnetic coil 4 is switched off, the spring 61 can directly and instantly drive the plug pin 51 to reset, and further, a high impact frequency can be completely achieved under the condition of ensuring high impact force.

And the stop pin 7 can be connected in the shell through threads, and a user can rotate the stop pin 7 to adjust the distance between the stop pin 7 and the bolt 51 so as to adapt to the working requirement.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The fine adjustment type electromagnetic driving structure is characterized by comprising an action piece (5), an electromagnetic coil (4) for driving the action piece (5) to axially move on one side, and a reset structure for driving the action piece (5) to reset; the electromagnetic coil (4) circumferentially surrounds the action piece (5), and the tail end of the action piece (5) is connected with a bolt (51) which acts and responds to the electromagnetic coil (4).

2. The fine tuning electromagnetic driving structure according to claim 1, wherein the reset structure comprises a push rod (6), one end of the push rod (6) abuts against the plug pin (51), and the other end of the push rod (6) is connected with a spring (61), and the spring (61) provides a pushing force to the push rod (6) along the axial direction towards one side of the plug pin (51).

3. The fine tuning electromagnetic driving structure of claim 2, characterized in that the driving structure further comprises a housing, and the actuating member (5), the latch (51) and the plunger (6) are all sleeved in the housing.

4. A trimming electromagnetic driving structure according to claim 3, wherein an adjuster (62) is provided at one end of the housing, the adjuster comprises a top block in threaded connection with the housing, and two ends of the spring (61) respectively abut against the top rod (6) and the top block.

5. A trimming electromagnetic actuating structure according to claim 3, characterized in that the actuating structure further comprises a stop pin (7), the stop pin (7) being located on a side of the plug pin (51) axially facing away from the actuating member (5).

6. A trimming electromagnetic actuating structure according to claim 5, characterized in that said stop pin (7) is screwed to said housing.