KR102514634B1 - Handheld powder pump - Google Patents

Abstract

The present invention is a portable powder pump, specifically, a portable powder pump composed of a main body providing rotational power; a conveying part through which powder is transferred; and an adapter fastening and fixing the main body and the conveying part, wherein the conveying part uses PFA resin. By doing so, it relates to a portable powder pump that can be operated with one hand that can efficiently support powder transfer even with low power.

Description

Handheld powder pump {Handheld powder pump}

The present invention is a portable powder pump, specifically, a portable powder pump composed of a main body providing rotational power; a conveying part through which powder is transferred; and an adapter fastening and fixing the conveying part to the main body, wherein the conveying part is made of PFA resin as a material. It relates to a portable powder pump that can be operated with one hand, which can efficiently support powder transfer even with low power by using a powder pump.

Since powder or powder particles such as sugar and flour are frequently moved in large quantities in the food processing industry, most of the commercial products that have been supplied have been continuously requested to develop a pump that easily transfers them in the industry to which the present invention belongs. There is no new technology developed other than powder transfer using wind power, and even in civil construction sites such as cement and sand, powder transfer is an important practical task in terms of process management, but no technology has been developed efficiently.

For example, Korea Patent Registration No. 10-1282607 is a powder continuous supply device proposed as a patent in 2015, but is not different from the prior art in that powder is supplied using compressed air.

In addition, Korea Patent Publication No. 10-2015-0107486 is a fine powder supply device, in which a fixed amount discharger discharges powder to a powder transfer pipe through the weight of the powder, and at the same time, the first transfer gas pipe is transferred to the powder transfer pipe in the direction of powder transfer. It is possible to minimize the loss of fine powder remaining in the metered dispenser due to gas pressure by supplying the powder to minimize powder scattering, but the use of gas has complex facilities, high cost, and low adaptability to industrial sites, limiting installation in actual industrial sites. there was a lot

In addition, Korean Patent Publication No. 10-2014-0007938 discloses a fine powder transfer method using a diaphragm pump, comprising at least one deformable diaphragm that can be moved to a delivery space that closes a working volume, a suction position and a pump position, and a diaphragm pump. It is characterized by linking the rotational force of the motor with the opening and closing of the diaphragm, such as the engine activity of a car, through a diaphragm pump to include an inlet disposed on the suction side and a discharge valve disposed on the pressure side of the diaphragm pump. is increasing and the high cost is essential, so there is a problem in widespread use.

Korean Patent Publication No. 10-2019-0028469 is a technology that increases the total powder storage volume and improves speed by using a fluid-dynamic principle of a communication container using a chamber system using 4 pumping chambers in 4 strokes, In addition, the technology is complicated and expensive, so there is a problem in applying it to industrial sites.

Korean Utility Model Registration No. 20-0181276 is a conveying device that continuously transfers and crushes pulverized material from a pulverizer to required particles, and consists of a receiving member that receives and transfers pulverized material from the pulverizer at the bottom of the pulverizer and a blower installed on one side of the receiving member. a supply unit; a transfer pipe installed on the other side of the receiving member; The end of the transfer pipe is connected and installed on the upper part of the frame of the grinder to supply the pulverized material supplied to the hopper for the grinder, so that the receiving hopper part is installed on the upper side and the supply hopper part communicates with the lower part, and the lower part is installed on the lower part of the supply hopper part. It is a conveying device equipped with a guide pipe in which a discharge pipe and an input hole are formed and a conveying screw rotated by an operating motor is built in, but since the conveying screw is manufactured by molding plastic or metal, the contact surface with the powder is large, causing powder agglomeration and sticking to the screw surface. Since sticking occurs, it was difficult to make it portable because the motor capacity had to be designed with a large motor capacity to solve the friction between the powder and the screw.

As described above, since there is no portable pump technology that can be used in a small space with low power in the industry known technology, there has been a continuous development demand for this.

Korean Utility Model Registration No. 20-0181276 Korean Patent Registration No. 10-1282607 Korean Patent Publication No. 10-2019-0028469 Korean Patent Publication No. 10-2014-0007938 Korean Patent Publication No. 10-2015-0107486

The present invention has been made to solve the problems of the prior art, and in particular, it is intended to provide a powder pump that can increase powder transfer efficiency with little power by improving powder flowability without sticking or sticking to a powder contact transfer path. .

In addition, the present invention is to provide a miniaturized portable powder pump that can be driven with low power.

In addition, the present invention is to provide a prefabricated portable powder pump that can be used conveniently by assembling only the transfer unit to the electric screwdriver supplied to the home.

In addition, the present invention is to provide a portable low-power powder pump that can easily adjust the powder transfer amount.

In addition, the present invention is to provide a portable powder pump that can be applied to various working environments when inhaling and transporting powder.

The problem to be solved by the present invention is not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, the present invention provides a portable powder pump consisting of a main body providing rotational power; a conveying unit for transferring powder using the main body power; and an adapter for fastening and fixing the conveying unit to the main body,
The transfer unit includes a cylindrical transfer tube; a discharge tube fixed in connection with the lower portion of the transfer tube and discharging powder transferred in the transfer tube; and an inner screw installed in the transfer tube and transporting the powder. The material of the transfer unit is It is made of PFA resin,
One end of the transfer tube has an incision cut by a predetermined length and depth,
The inner screw functions as a rotating shaft and includes a hollow cylindrical rod; a spiral suction tip fixed to one end of the cylindrical rod and configured to suck powder; and, the other end of the cylindrical rod 126 to be fixed to the body rotation bit. It is possible to provide a portable powder pump portable powder pump, characterized in that consisting of; rotation bit fastening portion provided.
In addition, it is possible to provide a portable powder pump, characterized in that the spiral suction tip of the present invention is exposed to the incision of the transfer tube and is exposed 2 to 4 cm longer from the end of the transfer tube.
In addition, the main body of the present invention can provide a portable powder pump, characterized in that the pistol-type electric screwdriver.

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The present invention can provide a powder pump in which powder does not adhere or adhere to a powder contact transfer path.

The present invention can provide a small portable powder pump that can be driven even with low power.

The present invention can provide a simple prefabricated portable powder pump technology using an electric screwdriver prevalent at home as a rotating body.

The present invention can provide a portable powder pump that can easily adjust the powder transfer amount by replacing the transfer unit assembled without changing the body or adjusting the rotation speed.

The present invention can provide a portable powder pump applicable to various working environments during suction and transfer by freely bending the transfer unit.

In addition to the effects mentioned above, the present invention includes what is evident to those skilled in the art from the techniques described below.

1 is an overall perspective view of a pistol-type portable powder pump according to the present invention.
Figure 2 is a component of the pistol-shaped portable powder pump of the present invention, a transfer unit consisting of a transfer tube, an inner screw, and a discharge tube; and an adapter for fixing the transfer tube to the main body; And, it is a disassembly embodiment showing a process of sequentially assembling the main body providing rotational power to the transfer unit.
3 is a cutaway view showing how the transfer tube and the inner screw of the transfer unit are fastened to the main body using an adapter.
Figure 4 shows the components of the pistol-shaped main body in detail.
5 is an illustrative view of a transfer tube and a discharge tube among the transfer units, the transfer tube includes a suction unit having one end part cut in order to increase powder intake efficiency, a transfer unit for transferring powder with an inner screw, and fixing the transfer tube to the main body. It consists of an adapter fixing part for
6 is an adapter, which functions to fasten and fix to the transport tube and the main body, and includes a main body fastening portion having a screw fastening hole for fastening to the main body, and a transport tube fixing portion for fixing the transport tube.
Figure 7 is a detailed structure of the inner screw according to the present invention, a spiral suction tip for powder suction; A hollow cylindrical rod that functions as a rotation axis and has excellent bending properties and light weight; One end of the cylindrical rod is fixed to the suction tip, and the other end is fixed to the rotating bit of the body so as to fasten the rotation bit of a predetermined length; consists of.
8 is a basic structure of a transfer unit of a portable powder pump according to the present invention, a cutaway view in which an inner screw is assembled inside a transfer tube equipped with a discharge tube.
9 is a modified example according to the present invention, showing a combination of a straight-line electric driver type body with a transfer unit instead of a pistol type body.
10 shows that the transfer tube of the portable powder pump according to the present invention is transformed into a corrugated transfer tube with wrinkles formed on the surface.
FIG. 11 is a cutaway view of a state in which an inner screw is assembled inside the conveying tube of the conveying unit made of the corrugated conveying tube of FIG. 10, and shows that the bendability of the conveying tube can be improved.

Hereinafter, preferred embodiments of the present invention will be described.

In the description of the present invention, if it is determined that a detailed description of a known function or configuration may obscure the gist of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, and since they may vary according to the intention of a user or operator or a precedent, they should be determined based on the contents throughout this specification.

1 is a perspective view showing an embodiment of a pistol-shaped portable powder pump according to the present invention, and FIG. 2 is a pistol-shaped portable powder pump component comprising a transfer unit composed of a transfer tube, an inner screw, and a discharge tube; and a transfer tube. adapter for fixing to the main body; And, a disassembly embodiment showing the process of sequentially assembling the main body that provides rotational power to the conveying part, and FIG. 3 shows how the conveying tube and the inner screw of the conveying part are fastened to the main body using an adapter in the embodiment of FIG. It is a cutaway view, and FIG. 4 shows the components of the pistol-shaped main body in detail as an embodiment.

Referring to Figures 1 to 4, the portable powder pump 1000 according to the present invention body 200 for providing rotational power; A conveying unit 100 for conveying powder using body power; It consists of an adapter 130 for fastening and fixing the transfer unit 100 to the main body 200.

Hereinafter, the transfer unit 100 will be described in detail first.

The transfer unit 100 includes a cylindrical transfer tube 110; a discharge tube 140 that is linked and fixed to the lower portion of the transfer tube 110 and discharges the powder transferred within the transfer tube 110; It is installed in the transfer tube 110 and consists of an inner screw 120 for transferring powder. In addition, the inner screw 120 has a cylindrical rod 126 as an axis and a rod-shaped spiral pipe 125 is formed on the axis surface, so that powder is sucked in, transferred to the transfer tube 110, and then discharged to the discharge tube 140.

First, the transfer tube 110 is a hollow cylindrical tube of a predetermined length, and through this, it is possible to further secure the bending characteristics and light weight, and as shown in FIG. The incision 115 cut by a predetermined length and depth in the direction; and a conveying passage 112 through which the inhaled powder is transported through the inner screw 120; It is characterized by further comprising an adapter fixing part 113 fastened to and fixed to the transfer tube fixing part 133 of the adapter 130.

In addition, the transfer tube 110 may be provided as a corrugated transfer tube 150 having wrinkles formed on its surface, as shown in FIGS. 10 and 11 . By providing more bendability through this, it is possible to improve the convenience of use and prevent failure by providing a more elastic transfer technology in the powder transfer process.

In addition, since the incision 115 is only partially incised based on the circular cross-section, the inner screw 120 installed inside the transfer tube 110 is effectively protected from the outside, and at the same time, the powder to be transferred is effectively sucked into the incision 115. support as much as possible

As another embodiment of the incision 115, the incision 115 is made of a through hole with a predetermined diameter and a predetermined length at one end of the transfer tube 110, but has a circular, triangular, quadrangular, pentagonal or hexagonal shape. One or more balls may be formed. That is, when the incision 115 is provided in the form of a through hole by a predetermined length in the longitudinal direction around the transfer tube 110, the external impact to the inner screw 120 installed inside is more effectively provided, while the transfer powder is effectively support for inhalation.

As described above, various types of incisions 115 formed in the powder inlet 111 of the transfer tube 110 are seen when powders such as sugar, flour, cement, and sand are packed in wrapping paper such as paper bags and plastic bags. Invention The portable powder pump 1000 supports the powder to be effectively suctioned and transferred without scattering the powder to the outside of the wrapping paper when the transfer tube suction part 111 is deeply inserted into the small hole formed in the wrapping paper and the switch is operated.

In addition, the inner screw 120 is installed on the inside of the conveying passage part 112, and it is preferable to install it with a gap of 2 to 5 mm. That is, as a result of testing the degree of inner adhesion between the transfer tube 110 and the inner screw 120 in the experimental process of the present invention, if it is less than 2 mm, the friction between the inner screw 120 and the transfer tube portion 112 is severe and used for a long time. When the thickness exceeds 5 mm, the amount of powder to be transferred is too small, and the workability is greatly reduced. Through this, the inner screw 120 is installed on the inside of the conveying passage 112, but installed with a gap of 2 to 5 mm, so that even when the inner screw 120 rotates, the frictional force between the inner surface of the conveying tube 110 and the inner screw 120 By reducing , it prevents failure and supports optimal maintenance of workability.

Meanwhile, the discharge tube 140 is formed below the transfer tube 110 in contact with the adapter fixing part 113 of the transfer tube 110 to change the powder transfer direction inside the transfer tube 110 at a predetermined angle. In the same way as the end shape of the transfer tube 110, after forming a through hole on the surface of the transfer tube 110, it can be provided integrally by bonding with an adhesive, or it can be provided in a known detachable method such as one-touch detachable for convenient use.

Also, referring to FIGS. 5 and 11 , the discharge tube 140 may be inclinedly coupled to the transfer tube 110 at a predetermined angle, which may be formed in various ways according to the structure of the main body 200 . That is, referring to FIGS. 5 and 8, in the embodiment of the pistol-shaped body 200 of the present invention, the coupling angle is preferably 30 to 45 °, and the shape of the discharge tube 140 is cylindrical, triangular, square, pentagonal or hexagonal rod shape. can provide

In addition, similar to the surface structure of the transfer tube 110 of FIGS. 10 and 11, it is more preferable to provide the discharge tube 140 of the present invention as a corrugated discharge tube formed with wrinkles at predetermined intervals on the surface. Through this, by freely rotating the position of the discharge tube 140, powder transfer can be more effectively supported.

On the other hand, the inner screw 120 functions as a rotating shaft and includes a hollow cylindrical rod 126, a spiral suction tip 123 fixed to one end of the cylindrical rod 126 and sucking powder, and a body rotation bit ( 205) to be fixed to the rotation bit fastening portion 121 provided at the other end of the cylindrical rod 126. Using a hollow cylindrical rod, it is possible to manufacture a portable spiral pump that can be operated with one hand due to its excellent bending characteristics and weight.

In addition, as shown in FIG. 7, a rod-shaped spiral pipe 125 is fixed to a predetermined length in the longitudinal direction on the surface of the cylindrical rod 126 to form the transfer screw portion 122 and function as a screw. It is a spiral tube filled with phosphorus, and is finished by winding and fixing it at predetermined pitch intervals on the surface of the cylindrical rod 126. For this reason, the rod-type spiral pipe 125 wound around and fixed to the cylindrical rod 126 that functions as a rotating shaft functions as a screw that transports powder when the cylindrical rod 126 rotates.

In addition, the material of the suction tip 123 is preferably stainless steel, because the suction tip needs to be strongly protected from impact because it becomes the first contact portion when inserting a wrapping paper or coming into contact with powder.

As another embodiment, the pointed suction tip 127 shown at the bottom of FIG. 7 is made of stainless steel and has a sharp opposite side fixed to the cylindrical rod 126, and can more effectively support the powder suction activity.

In addition, the suction tip 123 is fixed to one end of the cylindrical rod 126, and can be provided detachably by fixing at one or more points using a fixing screw 124. Through this, when an urgent action is required due to excessive wear or deformation, it is possible to easily replace only the suction tip 123.

In addition, the suction tip 123 is exposed corresponding to the cutout 115 of the transfer tube 110, as shown in FIGS. 8 to 11, and is exposed about 2 to 4 cm longer from one end of the transfer tube 110. it is desirable Through this, in addition to the suction part 111 of the transfer tube 110, a powder intake space is provided at the end of the transfer tube 110 with a margin, so that the powder transfer efficiency can be further increased.

In addition, the rotary bit fastening part 121 is a part for fastening with the rotary bit 205 that transmits the power of the main body 200, and the rotary bit fastening part made of a hollow cylindrical rod 126 for the rotary bit 205 (121) It can be fixed by pushing inward. That is, as shown in FIG. 3 , the rotation bit 205 in the through hole of the fixing part 133 of the transfer tube 110 is fixed while being inserted into the rotation bit fastening part 121 of the inner screw 120 . In addition, it is more preferable that the fixing force of the fixing part is more firmly fixed using an adhesive or a small screw.

In another embodiment, after fastening the rotary bit 205 to the rotary bit fastening part 121 of the inner screw 120 in advance, it can be fixed by fastening to the bit detachable part of the main body 200. That is, since the pistol-type electric screwdriver has a drill chuck for fastening the bit, so that the rotation bit 205 can be easily fastened, the inner screw 120 of the present invention further includes the rotation bit 205, and the rotation bit in the main body 200 ( 205) can be provided by design change to omit it.

In addition, the material of the transfer unit 100, that is, the transfer tube 110, the inner screw 120, the discharge tube 140, and the corrugated transfer tube 150, is PP, PE, PTFE (PolyTetraFluoroEthylene), or PFA (PerFluoro Alkoxy). ) resin, in particular, PFA resin is most preferred.

The PFA resin has a better standard surface roughness and a smaller friction coefficient than PTFE resin known as Teflon, so it can support the powder from sticking or sticking to the surface of the transfer tube 110, so it is suitable for metal materials that require frequent cleaning. Since it is lighter and easier to manage, it is possible to miniaturize the motor by greatly reducing the pump power, and by using this, it is possible to reduce the weight of the product when the transfer tube 110 and the cylindrical rod 126 of the inner screw 120 are provided in the form of a hollow cylindrical rod. may be more advantageous.

In addition, PFA (PerFluoro Alkoy) resin has excellent durability, weather resistance, and chemical resistance, and can be stably used in a wide range of temperatures from cryogenic to high temperatures because its continuous operating temperature is 260 ° C. It is smooth and has electrical characteristics with low permittivity, so frictional heat or static electricity caused by contact during powder transfer is significantly less than other materials, so it is effective in preventing fires and explosions.

In addition, PFA has very good transparency, so when manufacturing the transfer tube 110 made of transparent PFA, the entire operation process of the inner screw 120 in the transfer tube 110 can be observed. , support to respond quickly to this.

In terms of formability, PFA is very superior to PTFE (PolyTetraFluoroEthylene). That is, the PTFE resin has a melting temperature of 380 ° C and is 1,010 to 1,011 poise, so injection molding or melt extrusion molding used in general thermoplastic resins (103 to 104 poise) cannot be applied, so the inner screw 120 and the transfer tube ( 110), but PFA resin is suitable for manufacturing a hollow cylindrical transfer tube 110 or an inner screw 120 because it can be injection molded and extruded using conventional means.

In terms of flexibility after manufacturing, the transfer tube 110 and the inner screw 120 made of PFA resin are very superior to those made of PTFE. For this reason, it can be used in a straight line shape according to the field situation where the powder pump is installed, as well as bent in a curved shape of a predetermined curvature. In addition to this, when wrinkles are formed on the surface of the PFA resin transfer tube 110, the corrugated transfer tube 150 of FIGS. 10 to 11 can more effectively support the flexibility of the transfer tube 110.

Along with this, the other end of the transfer tube 110 is fastened and fixed to the main body 200 via the adapter 130, and is specifically fitted and fixed to the transfer tube fixing part 133 formed on one side of the adapter 130. That is, since the powder is transferred using the rotational force of the spiral inner screw 120 installed in the transfer tube 110, the adapter fixing part 113 is formed at the other end of the transfer tube 110 and the corresponding one side of the adapter 130 is formed. It can be fixed to the transfer tube fixing part 133 formed in.

The fixation between the transfer tube 110 and the adapter 130 includes methods such as adhesive, screw, gear, etc., and a detachable method such as a screw method that can be detachably provided to make parts portable is advantageous. That is, in one embodiment, the adapter fixing part 113 of the conveying tube 110 is inserted into the conveying tube fixing part 133 of the conveying tube 110 and then fixed using an adhesive or using one or more screws or gears. can be fixed in this way.

As another embodiment, the adapter fixing part 113 formed on the adapter 130 may be formed with a female screw, and the transfer tube fixing part 133 of the corresponding body 200 may be formed with a male screw to be fastened and fixed. The screw fixing part can be more firmly fixed by using small screw screws or adhesives in parallel. However, in order to use it as a portable powder pump 1000, it is preferable to simply combine the female screw and the male screw.

As described above, in a state in which the transfer tube 110 is fastened and fixed to the adapter 130, the adapter 130 can be fastened to the main body 200 through the body fastening portion 131 formed on the other side, and the fastening method is adhesive, All known methods such as screw and gear types can be used, but for the purpose of the portable powder pump 1000, a screw type that is easily detachable is most preferable. That is, as in the embodiments of FIGS. 6 and 4, when the main body 200 is provided with one or more screw fasteners 132 in advance, the user fastens the screw to the fastener so that the transfer tube 110 is fixed. The adapter 130 is firmly fixed to the main body 200 . In addition, if disassembly is required, the adapter 130 is simply separated from the main body 200 by removing the fixed screw using a screwdriver.

Hereinafter, the main body 200 will be described in detail.

As shown in Figure 4, the basic structure of the main body 200 includes a screw fastening hole 201 provided to fasten the adapter 130; A control switch 202 for turning on/off power and controlling speed, a control panel 203 for setting operating environments such as usage time and torque, and a rechargeable battery 204 for supplying electric energy to the motor; It consists of a rotating bit 205 detachably provided to the bit fixing part 206 at one end of the main body 200 and a bit fixing part 206 for firmly fixing the bit to the main body 200.

First, the rotating bit 205 preferably has a cylindrical, triangular, quadrangular, pentagonal or hexagonal rod shape, and is preferably made of steel or stainless steel. In addition, the rotating bit 205 may be tightened by pushing into the inner screw 120 of the rotating bit fastening part 121 and more firmly fixed by a known fixing means.

The bit fixing part 206 is a means for firmly fixing the rotating bit 205, and may be completely fixed by welding or detachably supported like a drill chuck. Preferably, by supporting in the form of a drill chuck, it can be used as an electric driver in normal times and used as a portable powder pump 1000 by fastening and fixing the rotating bit 205 and the transfer unit 100 only when necessary.

In addition, the screw fastening hole 201 corresponds to the screw fastening hole 132 of the adapter 130 and has a corresponding number and shape. Through this, the user can fasten and fix using a screw screw in a state where the fastening hole 201 and the screw fastening hole 132 face each other. In addition, when not in use and stored, the main body 200 and the adapter 130 are separated and stored by unscrewing the screws.

In addition, the screw fastening hole 201 may be made of steel, aluminum or stainless steel considering the operating environment, and lightweight aluminum is preferable in terms of durability and portability.

The operation switch 202 provides a power power on/off function, but it is more preferable to further add a speed control function. That is, when the main body 200 in the form of a pistol is provided as shown in FIGS. 1 and 2, the user can easily operate the switch while holding the portable powder pump of the present invention with one hand.

In addition, the operation switch 202 may further add a safety device. The safety device may use a known method, and through this, it is possible to prevent safety accidents caused by user carelessness.

The control panel 203 is for setting operating environments such as usage time and rotational force, and may be formed on one side of the main body 200 . That is, the control panel 203 may be formed on the lower part of the main body 200 as shown in FIG. 4, or may be formed on the side of the rotating bit 205 or the pistol handle to facilitate manipulation.

The rechargeable battery 204 is a means for supplying electric energy to the motor of the main body 200, and a known rechargeable battery may be used. In addition, user convenience can be greatly improved by charging the rechargeable battery in a charger when not in use and using it in the main body 200 only when in use.

One embodiment of the main body 200 as described above may be a pistol-type electric screwdriver. Pistol-type electric screwdrivers are widely used not only for industrial use but also for home use, so users can easily assemble and use them even if they purchase only the transfer unit 100.

As another embodiment, the body 200 may be replaced with a straight-line electric screwdriver 300 instead of a pistol-type, or a screwdriver that can be bent from a straight-type to a pistol-type.

Hereinafter, the adapter 130 of FIG. 6 will be described in detail.

As shown in FIG. 3, the adapter 130 functions as a medium between the transfer part 100 and the main body 200, and the transfer tube 110 of the transfer unit 100 is fastened to the protruding transfer tube fixing part 133 of the adapter 130. It is fixed.

However, the transfer tube fixing part 133 protrudes by a predetermined length and is made of a hollow cylindrical shape, thereby supporting the rotating bit 205 of the main body 200 to rotate freely inside the cylindrical transfer tube fixing part 133. That is, as shown in FIGS. 6 and 3, the rotation bit 205 of the main body 200 is fixed in the state of being inserted into the rotation bit fastening portion 121 of the inner screw 120 in the through hole of the transfer tube fixing part 133, , When the rotating bit 205 rotates, power is transmitted to the inner screw 120 so that it rotates freely.

In addition, the adapter 130 is fastened to and fixed to the screw fastening hole 201 of the main body 200 through the main body fastening part 131, and as an example, the screw fastening hole 132 formed in the main body fastening part 131 ) It can be easily fixed using a screw screw to the screw fastening hole 201 formed in the form of a through hole so as to be in contact with each other.

As described above, the rotation bit of the main body 200 is fastened and fixed to the inner screw 120 inside the cylindrical transfer tube fixing part 133 of the adapter 130, and the transfer tube 110 is fastened to the main body 200 and fixed during rotation. The powder is transported in the interior of the transport tube 133, and the inflection point 114 is formed as shown in FIG. 140) and continues to be transported.

In addition, the material of the adapter 130 may be made of plastic, steel, aluminum or stainless steel, and lightweight aluminum material is preferable in terms of durability and portability.

The present invention described above is only exemplary, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. Therefore, it will be well understood that the present invention is not limited to the forms mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and alternatives within the spirit and scope of the present invention as defined by the appended claims.

1000: portable powder pump 100: transfer unit
110: transfer tube 111: inlet
112: transport part 113: adapter fixing part
114: inflection point 115: incision
120: inner screw 121: rotation bit fastening part
122: transfer screw part 123: suction tip part
124: fixing screw 125: bar-shaped spiral pipe
126: cylindrical rod 130: adapter
131: main body fastening part 132: screw fastening part
133: transfer tube fixing part 140: discharge tube
150: corrugated transfer tube 200: main body
201: screw fastening hole 202: operation switch
203: control panel 204: rechargeable battery
205: rotation bit 206: bit fixing part
300: straight electric driver 127: pointed suction tip

Claims (5)

A portable powder pump consisting of a main body providing rotational power; and a conveying part for conveying powder using the main body power; and an adapter for fastening and fixing the conveying part to the main body,
The transfer unit includes a cylindrical transfer tube; a discharge tube fixed in connection with the lower portion of the transfer tube and discharging powder transferred in the transfer tube; and an inner screw installed in the transfer tube and transporting the powder. The material of the transfer unit is It is made of PFA resin,
One end of the transfer tube has an incision cut by a predetermined length and depth,
The inner screw functions as a rotating shaft and includes a hollow cylindrical rod; a spiral suction tip fixed to one end of the cylindrical rod and sucking powder; and a rotating bit provided at the other end of the cylindrical rod so as to be fixed to the body rotating bit. Fastening part; characterized in that consisting of, a portable powder pump According to claim 1,
The spiral suction tip is exposed to the incision of the transfer tube, characterized in that it is exposed 2 to 4 cm longer from the end of the transfer tube, portable powder pump According to claim 1 or 2,
Characterized in that the main body is a pistol-type electric screwdriver, a portable powder pump delete delete

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