Portable paint spraying machine

Abstract

The utility model relates to the field of paint spraying, and discloses a portable paint spraying machine which comprises a shell, the shell comprises a material shell for containing paint and a transmission shell for installing a transmission mechanism, the transmission shell is communicated with the material shell, one end of the transmission shell is a discharging end, and a spraying head assembly is installed at the discharging end; the transmission mechanism is a screw rod, and the screw rod can drive the coating to be conveyed to the discharging end; the fan is arranged close to the discharging end, an outlet of the air duct extends to the discharging end, and the air outlet end of the fan is communicated into the air duct. The paint spraying machine has the advantages of being reliable in transportation, convenient to use and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of paint spraying, especially to portable paint spraying machine. BACKGROUND

[0002] The utility model discloses a small -size handheld paint spraying device with stirring function discloses a small -size handheld paint spraying device with stirring function, including spraying gun body and the paint tank of connecting on spraying gun body, the spraying gun body includes handle, gun cylinder, spray head and trigger, the handle tail portion is equipped with the air inlet, the paint tank includes a vertical pipe body and tank body, the pipe body is installed on the gun cylinder, and the pipe body inside is communicated with the gun cylinder inside, the tank body is connected on the pipe body top, and the tank body inside is communicated with the pipe body inside, the tank body top is equipped with the filling port and the cover, the pipe body below is equipped with the plug, be equipped with the agitator on the tank body.

[0003] The spraying device of this type has the following problems: first, a separate air source is needed for atomization spraying, and second, a separate stirring device is needed for material conveying. UTILITY MODEL CONTENTS

[0004] The utility model provides portable paint spraying machine in view of the shortcoming in the prior art.

[0005] To solve the above technical problem, the utility model solves through the following technical scheme:

[0006] Portable paint spraying machine, including the casing, the casing includes the material casing of containing the paint and the transmission casing of installing transmission mechanism, and the transmission casing is communicated with the material casing, and one end of the transmission casing is the discharge end, and the discharge end is installed with the nozzle assembly, the transmission mechanism is the screw rod, and the screw rod can drive the paint to be transported to the discharge end, still include the fan, the fan is close to the discharge end setting, still include the air duct, the outlet of the air duct extends to the discharge end, and the discharge end is provided with the nozzle assembly, and the wind force generated by the fan is transported to the nozzle assembly through the air duct.

[0007] As preferred, it further includes a transmission motor connected with the screw rod, and a material transmission cavity is formed between the screw rod and the inner wall of the transmission casing.

[0008] As preferred, it further includes a connecting portion and a transmission bearing, the screw rod and the transmission motor are connected in transmission through the connecting portion, and the transmission bearing is installed in the transmission casing; the transmission bearing supports the screw rod in radial direction.

[0009] As preferred, a fixing hole is formed on the connecting portion; a connecting hole is formed on the output shaft (25) of the screw rod and the transmission motor, the screw rod and the transmission motor are inserted into the connecting portion, and a bolt is installed on the fixing hole and fixedly connected with the connecting portion through the connecting hole.

[0010] As preferred, the air pipe is located outside the transmission housing and is fixed at one end to the outer wall of the transmission housing, an air channel is formed between the inner wall of the air pipe and the outer wall of the transmission housing, and the other end of the air pipe extends to the discharge end and is connected to the transmission housing through the nozzle assembly.

[0011] As preferred, the nozzle assembly comprises a plug and a spray head, the plug is installed at the discharge end of the transmission housing, the spray head is installed at the end of the air pipe and limits the plug, the plug is provided with a liquid outlet, and the spray head is provided with a gas port; the liquid outlet is arranged at the middle of the plug, the end of the screw is provided with a tapered head, the tapered head is inserted into the liquid outlet and a gap for discharging liquid is formed between the tapered head and the inner wall of the liquid outlet.

[0012] As preferred, the upper end of the material housing is an open structure, and a handle is connected to the outside of the material housing.

[0013] As preferred, the material housing and the transmission housing are integrally formed, and the material housing and the transmission housing are vertically arranged.

[0014] As preferred, the material housing, the transmission housing and the fan housing are integrally formed.

[0015] As preferred, a battery housing for installing a storage battery is further arranged on the housing, the storage battery is arranged in the battery housing, and the storage battery is connected to the transmission motor and the fan and supplies power to them.

[0016] Compared with the prior art, the present scheme has the following beneficial effects: the fan is used to replace the traditional external air source, which is more convenient and reliable. Meanwhile, the screw is used for feeding, which has the characteristics of stable feeding, and the screw can also stir and convey the material during feeding, thereby ensuring the reliability of the paint. It can be applied to the conveying, atomization and spraying of interior and exterior wall paint and related spraying products. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the device.

[0018] Figure 2 It is a left view of Figure 1 .

[0019] Figure 3 It is a sectional view of Figure 2 .

[0020] The technical names of the reference signs in the figure are: 1 - shell, 2 - material shell, 3 - transmission shell, 4 - discharge end, 5 - nozzle assembly, 6 - fan, 7 - air duct, 8 - transmission motor, 9 - screw, 10 - connecting part, 11 - transmission bearing, 12 - fixing hole, 13 - connecting hole, 14 - mounting hole one, 15 - mounting hole two, 16 - air pipe, 17 - plug, 18 - nozzle, 19 - liquid outlet, 20 - air port, 21 - gap, 22 - opening structure, 25 - output shaft. DETAILED DESCRIPTION

[0021] The utility model will be described in further detail below in combination with the drawings and examples.

[0022] Example 1

[0023] The portable paint spraying machine comprises a shell 1, the shell 1 comprises a material shell 2 for containing paint and a transmission shell 3 for installing a transmission mechanism, the transmission shell 3 is communicated with the material shell 2, one end of the transmission shell 3 is a discharge end 4, and a nozzle assembly 5 is installed on the discharge end 4; the transmission mechanism is a screw 9, the screw 9 can drive the paint to be transported to the discharge end 4; further comprising a fan 6, the fan 6 is arranged close to the discharge end 4, further comprising an air duct 7, the outlet of the air duct 7 extends to the discharge end 4, the discharge end 4 is provided with the nozzle assembly 5, and the wind power generated by the fan 6 is transported to the nozzle assembly 5 through the air duct 7. In the scheme, material spraying is carried out by the fan 6, the fan 6 is transported to the discharge end 4 through the air duct 7, and the paint discharged from the discharge end 4 is sprayed and atomized.

[0024] Further comprising a transmission motor 8 in the scheme, the transmission motor 8 is connected with the screw 9, and a material transmission cavity is formed between the screw 9 and the inner wall of the transmission shell 3.

[0025] In order to ensure the stable rotation of the screw 9, further comprising a connecting part 10 and a transmission bearing 11, the screw 9 and the transmission motor 8 are connected in transmission through the connecting part 10, and the transmission bearing 11 is installed in the transmission shell 3; the transmission bearing 11 is installed on the screw 9, and the screw 9 is radially supported. The bearing plays a circumferential supporting role, and the other end of the screw 9 is supported through the plug 17. A sealing ring is arranged in the transmission shell 3, the sealing ring 26 is sleeved on one end of the screw 9 close to the transmission motor 8. The sealing ring 26 is arranged close to the transmission bearing 11.

[0026] In the scheme, the connecting part 10 is provided with a fixing hole 12; the screw rod 9 and the output shaft 25 of the transmission motor 8 are provided with connecting holes 13, the screw rod 9 and the transmission motor 8 are inserted into the connecting part 10, the bolts are fixedly connected with the connecting part 10 by being installed on the fixing hole 12 and penetrating the connecting holes 13. The connecting part 10 is provided with a mounting hole one 14 and a mounting hole two 15, the screw rod 9 is installed in the mounting hole one 14, the output shaft 25 of the motor is installed in the mounting hole two 15, the fixing hole 12 penetrates the two side surfaces of the connecting part 10 and communicates with the mounting hole one 14 and the mounting hole two 15; the bolts are fixed on the connecting part 10 by penetrating the fixing hole 12 and the connecting hole 13 and being fixed by the nuts. In order to facilitate installation, the transmission housing 3 is provided with a through hole for inserting the bolt.

[0027] In order to form the air duct 7, the air pipe 16 is further included, the air pipe 16 is located outside the transmission housing 3 and is fixed at one end with the outer wall of the transmission housing 3, the inner wall of the air pipe 16 and the outer wall of the transmission housing 3 form the air duct 7, the other end of the air pipe 16 extends to the discharge end 4 and is connected with the transmission housing 3 through the nozzle assembly 5. In the scheme, the air pipe 16 and the transmission housing 3 are integrally formed, and the air pipe 16 and the transmission housing 3 are coaxially arranged. The inner wall of the air pipe 16 and the outer wall of the transmission housing 3 form the air duct 7, the other end of the air pipe 16 extends to the discharge end 4, the nozzle assembly 5 includes a plug 17 and a spray head 18, the plug 17 is installed at the discharge end 4 of the transmission housing 3, the spray head 18 is installed at the end of the air pipe 16 and limits the plug 17, the plug 17 is provided with a liquid outlet 19, and the spray head 18 is provided with a plurality of air ports 20. The air port 20 is located around the liquid outlet 19, and the spray head 18 is threadedly connected with the air pipe 16.

[0028] In the embodiment, the nozzle assembly 5 includes a plug 17 and a spray head 18, the plug 17 is installed at the discharge end 4 of the transmission housing 3, the spray head 18 is installed at the end of the air pipe 16 and limits the plug 17, the plug 17 is provided with a liquid outlet 19, and the spray head 18 is provided with an air port 20; the liquid outlet 19 is arranged in the middle of the plug 17, the end of the screw rod 9 is provided with a tapered head, the tapered head is inserted into the liquid outlet 19 and a gap 21 for discharging liquid is formed between the tapered head and the inner wall of the liquid outlet 19. The side wall of the liquid outlet 19 is provided with a spout.

[0029] In the scheme, the upper end of the material housing 2 is an open structure 22, and the handle 23 is connected to the outside of the material housing 2. The material housing 2, the transmission housing 3 and the fan 6 housing 1 are integrally formed, and the material housing 2 and the transmission housing 3 are vertically arranged.

[0030] In use, the dye is injected from the upper end of the material housing 2 into the space between the screw 9 and the inner wall of the transmission housing 3, and then the transmission motor 8 drives the screw 9 to rotate to deliver the material to the discharge port to flow out from the gap 21 or be sprayed out, and the fan 6 blows air from the air port 20 through the air duct 7 to spray and atomize the paint flowing out.

[0031] Example 2

[0032] The difference between this embodiment and example 1 is that the housing 1 is further provided with a battery housing 1 for mounting a battery, the battery housing 1 is provided with a battery, and the battery is connected with and supplies power to the transmission motor 8 and the fan 6. A 22V power supply can be provided for driving.

[0033] Example 3

[0034] The difference between this embodiment and example 1 is that the transmission motor 8 and the fan 6 are externally connected to the power supply through a wire plug.

Claims

1. A portable paint sprayer characterized by: The utility model provides a paint conveying device, including shell (1), shell (1) includes the material shell (2) of containing paint and the transmission shell (3) of installing transmission mechanism, transmission shell (3) is communicated with material shell (2), and one end of transmission shell (3) is the discharge end (4), and the discharge end (4) is equipped with nozzle assembly (5);Transmission mechanism is screw rod (9), and screw rod (9) can drive paint to be transported to discharge end (4);Still include fan (6), and fan (6) is close to the discharge end (4) setting, still include air duct (7), and the outlet of air duct (7) extends to discharge end (4), and the discharge end (4) is equipped with nozzle assembly (5), and the wind power generated by fan (6) is transported to nozzle assembly (5) through air duct (7).

2. The portable paint sprayer of claim 1, wherein: Still include transmission motor (8), and transmission motor (8) is connected with screw rod (9), and screw rod (9) forms material transmission cavity with the inner wall of transmission shell (3).

3. The portable paint sprayer of claim 2, wherein: Still include connecting part (10) and transmission bearing (11), and screw rod (9) and transmission motor (8) are connected transmission through connecting part (10), and transmission bearing (11) is installed in transmission shell (3);Transmission bearing (11) is installed with screw rod (9) to the radial support of screw rod (9).

4. The portable paint sprayer of claim 3, wherein: Fixed hole (12) is set up on connecting part (10);Screw rod (9) and the output shaft (25) of transmission motor (8) are all equipped with connecting hole (13), and screw rod (9) and transmission motor (8) are inserted in connecting part (10), and bolt is installed on fixed hole (12) and passes through connecting hole (13) and is fixedly connected with connecting part (10).

5. The portable paint sprayer of claim 1, wherein: Still include air pipe (16), and air pipe (16) is located at the outside of transmission shell (3) and one end is fixed with the outer wall of transmission shell (3), and the inner wall of air pipe (16) and the outer wall of transmission shell (3) form air duct (7), and the other end of air pipe (16) extends to discharge end (4) and is connected with transmission shell (3) through nozzle assembly (5).

6. The portable paint sprayer of claim 5, wherein: Nozzle assembly (5) includes plug (17) and spray head (18), plug (17) is installed at the discharge end (4) of transmission shell (3), spray head (18) is installed at the end of air pipe (16) and is limited to plug (17), plug (17) is equipped with liquid outlet (19), and spray head (18) is equipped with air hole (20);Liquid outlet (19) is set up in the middle part of plug (17), and the end of screw rod (9) is equipped with taper head, and taper head is inserted in liquid outlet (19) and forms the gap (21) for liquid outlet between taper head and the inner wall of liquid outlet (19).

7. The portable paint sprayer of claim 1, wherein: The upper end of material shell (2) is open structure (22), and the outside of material shell (2) is connected with handle (23).

8. The portable paint sprayer of claim 1, wherein: Material shell (2) and transmission shell (3) are integrally formed structure, and material shell (2) and transmission shell (3) are vertically arranged.

9. The portable paint sprayer of claim 8, wherein: Material shell (2), transmission shell (3) and fan (6) shell (1) are integrally formed structure.

10. The portable paint sprayer of claim 2, wherein: The shell (1) is further provided with a battery shell (1) for installing a storage battery, the battery shell (1) is provided with the storage battery, the storage battery is connected with the transmission motor (8) and the fan (6) and supplies power for the transmission motor (8) and the fan (6), the transmission shell (3) is provided with a sealing ring, and the sealing ring is sleeved on one end of the screw rod (9) close to the transmission motor (8).

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