CN218287303U

CN218287303U - Spray drawing pen

Info

Publication number: CN218287303U
Application number: CN202221991915.XU
Authority: CN
Inventors: 李建中
Original assignee: Guangdong Xingsanlujiu Technology Co ltd
Current assignee: Guangdong Xingsanlujiu Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-13
Anticipated expiration: 2032-07-29

Abstract

The utility model relates to an inkjet pen, which belongs to the technical field of inkjet and comprises a positioning cylinder, an air pump, a coating accommodating part and a single sealing part, wherein the positioning cylinder is provided with an ejection cavity and a fixed channel which are mutually communicated; the single sealing piece is used for sealing a matching gap between the side wall of the fixed channel and the paint receiving piece, and the paint flowing out from the paint outflow end is atomized and sprayed out of the spray cavity under the action of the pressure gas; therefore, the pressure gas entering the spraying cavity is prevented from being shunted and accidentally discharged along the fixed channel, the pressure gas is prevented from being disordered due to shunting, the far gas is ensured to flow along one direction all the time to finish the atomization and spraying of the coating, the stability of the umbrella fabric sprayed by the coating is enhanced, and the spraying uniformity is improved; secondly, the elimination of the shunt can also ensure the pressure and the flow velocity in the spray cavity and improve the atomization degree of the coating.

Description

Spray drawing pen

Technical Field

The utility model relates to a painting technical field, more specifically say, relate to a spray painting pen.

Background

The spray painting drives the directional flow of air, so that the coating is crushed into uniform mist under the collision of pressure airflow and then is sprayed out in the same direction with the air, and finally is attached to a spray painting object in a more uniform manner; the spray painting can be used for spray painting objects with different sizes, and has good spray painting effect on objects made of different materials.

Taking a spray drawing pen in the field of spray drawing as an example, the spray drawing pen is used by workers in various industries due to the advantages of small volume and high portability. However, the spray pen in the related art still has certain disadvantages:

generally, a receiving element for receiving paint is fixed at a predetermined position, air is pumped to an outflow end of the receiving element, the paint flowing out from the outflow end is atomized and sprayed under the impact of the air flow, however, the pumped air flow easily flows out through a fit gap between the receiving element and a housing, so that on one hand, the air flow at the vicinity of the outflow end is disturbed, the umbrella surface sprayed by the paint is unstable, the painting is not uniform, on the other hand, the air pressure near the outflow end is reduced, and the atomization degree of the paint sprayed by the paint is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a can increase the air brushing degree of consistency and improve the spray drawing pen of coating atomizing degree.

The utility model provides a technical scheme that its technical problem adopted is:

the application provides a spray drawing pen, which comprises a positioning cylinder, an air pump, a coating accommodating piece and a single sealing piece, wherein the positioning cylinder is provided with a spray cavity and a fixed channel which are communicated with each other, the air pump is used for conveying pressure air to the spray cavity, the coating accommodating piece is inserted into the fixed channel, and a coating outflow end is exposed in the spray cavity;

the single sealing piece is used for sealing a fit clearance between the side wall of the fixing channel and the paint receiving piece, and the paint flowing out from the paint outflow end is atomized and sprayed out of the spraying cavity under the action of pressure gas.

In some embodiments, the positioning cylinder comprises a lower cylinder part and an upper cylinder part connected with the lower cylinder part;

the spray chamber is located in the lower barrel portion, the lower barrel portion and the upper barrel portion together define the fixed passage, the single seal is disposed on the lower barrel portion, and the single seal is defined between the lower barrel portion and the upper barrel portion.

In some embodiments, a part of the side wall of the lower cylinder extends outwards to form a connector, and an air guide channel is arranged in the connector and is used for guiding the pressure air output by the air pump and guiding the pressure air to the spraying cavity.

In some embodiments, the positioning cylinder further comprises a connection assembly comprising a positioning hole and a positioning post;

one of the positioning hole and the positioning column is arranged on the upper barrel part, the other of the positioning hole and the positioning column is arranged on the lower barrel part, and the positioning hole and the positioning column are used for allowing a locking piece to penetrate and fix when being aligned.

In some embodiments, the single seal is a lip seal opening toward the spray chamber; or

The single seal is an O-ring seal.

In some embodiments, the spray pen further comprises a housing and an electronic control device disposed within the housing; the air pump and the positioning cylinder are both positioned in the shell;

the electric control device comprises a switch movably arranged on the shell, a power supply arranged in the shell and a circuit board respectively electrically connected with the switch and the power supply; the circuit board is used for driving the air pump to work when the switch is closed.

In some embodiments, the electronic control device further comprises a light emitting element disposed on the housing, and the light emitting element is connected to the circuit board.

In some embodiments, the electronic control device further comprises a charging plug connected to the circuit board, and the charging plug is exposed outside the housing.

In some embodiments, the housing has an upper avoiding hole and a lower avoiding hole, the paint container is disposed through the upper avoiding hole, and the lower avoiding hole is used for spraying paint.

In some embodiments, the paint container includes a cylindrical body for containing paint and a liquid outlet head disposed on the cylindrical body, the liquid outlet head is exposed from the spray cavity, and the paint outflow end is disposed on the liquid outlet head and communicated with the cylindrical body.

The utility model discloses a spray painting pen has following beneficial effect at least:

the utility model discloses a spray drawing pen relates to air brushing technical field, and it avoids conveying to the pressure gas that spouts the intracavity to let out through fixed passage through setting up single sealing member between fixed passage's lateral wall and coating receiver, so, avoids the pressure gas that gets into to spout the intracavity to appear shunting and let out along the fixed passage accident, prevents that pressure gas from appearing the disorder because of shunting, guarantees to keep away from that gas can flow along a direction all the time and accomplish the atomizing and the blowout of coating, strengthens the umbrella face stability of coating blowout, improves the air brushing degree of consistency; and secondly, the pressure and the flow speed in the spray cavity can be ensured by eliminating the shunt, and the atomization degree of the coating is improved.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of an inkjet pen according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the pen shown in FIG. 1 from another angle;

FIG. 3 is an exploded view of the pen of FIG. 1;

FIG. 4 is a sectional view of the pen of FIG. 1;

FIG. 5 is a schematic view of a portion of the pen of FIG. 3;

FIG. 6 is an enlarged view of the pen of FIG. 4 at A.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 and 2 show an inkjet pen 10 according to some preferred embodiments of the present invention, where the inkjet pen 10 is used for spraying atomized paint and spraying the atomized paint.

As shown in fig. 1 to 6, the spray pen 10 includes a positioning cylinder 2 provided with a spray chamber 221 and a fixing passage 211 communicating with each other, an air pump 3 for supplying a pressure gas to the spray chamber 221, a paint container 4 inserted in the fixing passage 211 with a paint outflow end 421 exposed in the spray chamber 221, and a single seal member 5 provided in the fixing passage 211; wherein, the single sealing member 5 is used for sealing the fitting gap between the sidewall of the fixing channel 211 and the paint container 4, and the paint flowing out through the paint outflow end 421 is atomized and sprayed out of the spray chamber 221 by the pressure gas.

It can be understood that the positioning cylinder 2 is used for accommodating and positioning the paint container 4, and is also used for guiding the pressure gas output by the air pump 3 and guiding the pressure gas to a predetermined position so as to finish the atomization of the paint and the spraying of the atomized paint. The air pump 3 is used for generating output air and is connected with a power supply element. The paint receiver 4 is for receiving paint and guiding the paint to be discharged. The single seal 5 serves to exclude air. The spraying cavity 221 is used for collecting pressure air and the paint flowing out, the paint is atomized in the spraying cavity 221 and is sprayed out to finish spraying and painting under the undetermined condition of the pressure air. The contour of the fixing channel 211 is adapted to the contour of the paint receiver 4.

It can be understood that gas with a certain pressure can flow through various fit gaps, and once the pressure gas has too many outflow gaps, a certain pressure drop occurs, and the arrangement of the single sealing element 5 can prevent the pressure gas in the spray cavity 221 from being discharged through the fixed channel 211, and ensure the pressure value in the spray cavity 221, thereby ensuring that the coating can be sufficiently atomized, and improving the distribution uniformity of the coating; the pressure gas which is diffused on the umbrella surface after being sprayed out from the spraying cavity 221 can be kept stable, and the phenomenon of uneven spraying caused by the fact that the pressure gas is sprayed out of the umbrella surface intermittently is prevented. The sprayed umbrella surface is formed by spraying pressure gas through the hole body and then diffusing the pressure gas in the umbrella surface.

It should be noted that, the coating container 4 and the positioning cylinder 2 may be detachably connected, the number of the coating containers 4 may be multiple, and a user may select the coating containers 4 with different coating discharge amounts and different colors according to requirements; the paint container 4 may be configured to allow paint to be added or replaced, and for example, a cavity having a plug may be formed in the paint container 4.

As shown in fig. 3 to 6, the positioning cylinder 2 includes a lower cylinder portion 22 and an upper cylinder portion 21 connected to the lower cylinder portion 22 in some embodiments. The spray chamber 221 is located in the lower cylindrical portion 22, the lower cylindrical portion 22 and the upper cylindrical portion 21 together define a fixing passage 211, a single seal 5 is provided on the lower cylindrical portion 22, and the single seal 5 is defined between the lower cylindrical portion 22 and the upper cylindrical portion 21.

As can be appreciated, the lower cylinder portion 22 and the upper cylinder portion 21 together function to define a securing passage 211 to secure the paint container 4. The lower cylinder portion 22 or the upper cylinder portion 21 may be provided with a structure capable of housing and defining the individual seal 5, for example, a groove body or a stopper wall, and the fitting may be adjusted depending on the structure of the individual seal 5.

As shown in fig. 3 to 5, in some embodiments of the positioning barrel 2, a part of the side wall of the lower barrel portion 22 extends outward to form the connection head 23, and an air guide channel 231 is disposed in the connection head 23, and the air guide channel 231 is used for guiding the pressure gas output by the air pump 3 and guiding the pressure gas to the spray chamber 221.

It is understood that the connection head 23 and the output end of the air pump 3 can be connected by an air tube, and the air tube can be configured to be sleeved on the connection head 23. The air guide passage 231 is communicated with the spray chamber 221.

As shown in fig. 3 to 5, the positioning cylinder 2 further includes a connecting assembly 24 in some embodiments, and the connecting assembly 24 is used to connect the positioning upper cylinder 21 and the lower cylinder 22 to ensure their correct alignment.

The connecting assembly 24 includes a positioning hole and a positioning column, one of the positioning hole and the positioning column is disposed on the upper cylinder 21, the other of the positioning hole and the positioning column is disposed on the lower cylinder 22, and the positioning hole and the positioning column are used for the fastening member to be inserted and fixed when being aligned.

It can be understood that the positioning holes and the positioning posts are arranged at least in two modes: firstly, a positioning hole is arranged on the upper cylinder part 21, and a positioning column is arranged on the lower cylinder part 22; second, the positioning hole is opened in the lower tube portion 22, and the positioning post is provided in the upper tube portion 21.

It can also be understood that, after the positioning hole and the positioning column are aligned, a screw is used to simultaneously penetrate through the positioning hole and the positioning column, and then the screw is screwed in the predetermined mounting position of the positioning cylinder 2, so that the mounting of the positioning cylinder 2 can be completed, and the alignment of the upper cylinder part 21 and the lower cylinder part 22 can be completed at the same time. Simultaneously, can also compress tightly last section of thick bamboo 21 and lower section of thick bamboo 22 after the screw spiro union, avoid appearing the fit clearance between last section of thick bamboo 21 and the lower section of thick bamboo 22.

In particular, the single seal 5 may in some embodiments be configured as a lip seal opening towards the spray chamber 221. It will be appreciated that the recessed end of the lip seal is located towards the high pressure side, i.e. towards the spray chamber 221, so that when the pressure in the spray chamber 221 is high, pressure acts in the groove of the lip seal, thereby holding the two pairs of side walls of the groove against deformation, so that the lip seal abuts against both the paint receptacle 4 and the side walls of the fixing channel 211.

In particular, the single seal 5 may be configured as an O-ring seal in some embodiments. It will be appreciated that the O-ring seal has the advantage of being easy to install.

Of course, the single seal 5 may also be configured as other types of sealing rings, in particular being preferred to be able to seal the fitting gap between the paint receiver 4 and the fixing channel 211 to ensure the pressure inside the spray chamber 221.

As shown in fig. 1 to 4, the inkjet pen 10 in some embodiments further includes a housing 1 and an electric control device 6 disposed in the housing 1, and the air pump 3 and the positioning cylinder 2 are both located in the housing 1.

It can be understood that the housing 1 and the positioning cylinder 2 can be connected by screws, and the air pump 3 and the housing can also be connected by screw fasteners such as bolts and screws, and can also be connected by a snap structure. The electric control device 6 is used for electric control.

The electric control device 6 may include a switch 61 movably disposed on the housing 1, a power source 62 disposed in the housing 1, and a circuit board 63 electrically connected to the switch 61 and the power source 62, respectively; the circuit board 63 is used to drive the air pump 3 to operate when the switch 61 is closed.

It is understood that the switch 61 may be an electrical element commonly known in the related art capable of controlling the on/off of the circuit, and may be a knob switch, a toggle switch, a slide switch, a key switch, or the like. The power source 62 is a battery. The circuit board 63 functions to receive and transmit an electrical signal.

It will also be appreciated that when the switch 61 is activated, the circuit board 63 will conduct power to the air pump 3, and the air pump 3 will operate to pump air. Preferably, the air pump 3 is a related art air delivery pump with small volume and large power.

As shown in fig. 3 and 4, the electronic control device 6 further includes a light emitting element 64 disposed on the housing 1, and the light emitting element 64 is connected to the circuit board 63.

It will be appreciated that the illuminating member 64 can be illuminated under the control of the circuit board 63 to provide a user notification. The switch element 64 may be connected to the circuit board 63 by stitch bonding or cable bonding.

As shown in fig. 3 and 4, the electronic control device 6 further includes a charging plug 65 connected to the circuit board 63 in some embodiments, and the charging plug 65 is exposed outside the housing 1.

As will be appreciated, the charging plug 65 is adapted to receive external power and deliver the power to the power source 62 to power the power source 62.

As shown in fig. 2 and 3, the housing 1 is provided with an upper clearance hole 11 and a lower clearance hole 12, the paint container 4 is inserted into the upper clearance hole 11, and the lower clearance hole 12 is used for spraying the paint.

Understandably, the upper avoidance hole 11 is formed, so that a user can visually observe the storage amount of the paint in the paint accommodating part 4, and meanwhile, the shell 1 does not need to fully cover the paint accommodating part 4, so that the whole structure is more compact. The lower avoiding hole 12 is used for exposing the part of the positioning barrel 2 outside the shell 1, so that the contact between atomized paint and the shell 1 is avoided, and the influence of the shell 1 on the spray painting is also avoided.

As shown in fig. 3, the paint container 4 in some embodiments includes a cylindrical body 41 for containing paint and a liquid outlet head 42 disposed on the cylindrical body 41, the liquid outlet head 42 is exposed in the spraying chamber 221, and the paint outflow end 421 is disposed on the liquid outlet head 42 and is communicated with the cylindrical body 41.

It can be understood that the cross section of the cylindrical body 41 is circular, and the cylindrical body has the advantage of easy insertion installation. Of course, in other embodiments, the cylindrical body 41 may be provided in other shapes. The head 42 is tapered, and can collect the paint to be led out from a predetermined position, and can collect the paint to a certain extent when the paint allowance is small, thereby preventing the paint from being interrupted.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, which can not limit the protection scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. An ejection pen is characterized by comprising a positioning barrel, an air pump, a coating accommodating piece and a single sealing piece, wherein the positioning barrel is provided with an ejection cavity and a fixed channel which are communicated with each other;

2. The inkjet pen according to claim 1 wherein the positioning barrel comprises a lower barrel portion and an upper barrel portion connected to the lower barrel portion;

3. The spray pen according to claim 2 wherein a part of the side wall of the lower barrel extends outward to form a connection head, and an air guide channel is provided in the connection head, and is used for guiding the pressure gas output by the air pump and guiding the pressure gas to the spray chamber.

4. The pen of claim 2, wherein the cartridge further comprises an attachment assembly comprising a locating hole and a locating post;

one of the positioning hole and the positioning column is arranged on the upper cylinder part, the other of the positioning hole and the positioning column is arranged on the lower cylinder part, and the positioning hole and the positioning column are used for the fastening piece to penetrate and fix when being aligned.

5. The pen of claim 1, wherein the single seal is a lip seal opening into the spray chamber; or

The single seal is an O-ring seal.

6. The spray pen according to claim 1, further comprising a housing and an electrical control device disposed in the housing; the air pump and the positioning cylinder are both positioned in the shell;

7. The pen of claim 6, wherein the electrical control device further comprises a light emitter disposed on the housing, the light emitter being connected to the circuit board.

8. The spray pen according to claim 6, wherein the electrical control device further comprises a charging plug connected to the circuit board, the charging plug being exposed outside the housing.

9. The spray painting pen according to claim 6, wherein the housing has an upper clearance hole and a lower clearance hole, the paint container is disposed through the upper clearance hole, and the lower clearance hole is used for spraying paint.

10. The paint sprayer of claim 1 wherein the paint receptacle includes a cylindrical body for receiving paint and a liquid outlet head disposed on the cylindrical body, the liquid outlet head being exposed from the paint chamber, the paint outlet end being disposed on the liquid outlet head and communicating with the cylindrical body.