An aqueous coating spray gun

Abstract

The application relates to the technical field of water-based paint, in particular to a water-based paint spraying gun, which aims to solve the problems that it is difficult to dredge the blocked spray holes after blockage and the feeding pipe is separated and damaged due to high pressure. The shell is fixedly connected with a connecting pipe through a communicating hole in the upper surface, and a through hole is formed in the right side surface. The water-based paint can be filtered through the through hole, the water-based paint can be sprayed through the nozzle and the connecting pipe, the connecting plate pushes the piston to move through the cooperation of the control rod and the top rod, the insertion rod is inserted into the through hole, the through hole can be dredged, the nozzle is prevented from being blocked, the through hole can be dredged, the water-based paint can be sprayed, the piston can move to the right through the cooperation of the spring and the connecting plate when the through hole is blocked, the space on the left side of the piston is increased, the feeding pipe is prevented from being separated and damaged due to high pressure when blocked.

Description

Technical Field

[0001] This application relates to the field of water-based coatings technology, and in particular to a water-based coating spray gun. Background Technology

[0002] Water-based coatings are coatings that use water as a solvent. Compared to traditional solvent-based coatings, they have lower volatile organic compound (VOC) emissions, making them more environmentally friendly. They are mainly composed of water, resins (such as acrylic resins), pigments, fillers, and additives.

[0003] Currently, spray guns are used to spray water-based coatings. While existing spray guns can spray water-based coatings, they still have some shortcomings. For example, spray guns are prone to clogging, and once clogged, it is difficult to clear the blocked nozzles. This can prevent the water-based coating from being sprayed out, and the pressure from clogging can cause the delivery pipes to detach and be damaged. Therefore, improvements are needed. Utility Model Content

[0004] To facilitate the clearing of clogged nozzles, this application provides a water-based paint spray gun.

[0005] The water-based coating spray gun provided in this application adopts the following technical solution: A water-based paint spray gun includes a housing, a connecting pipe fixedly connected to the upper surface of the housing, an opening on the right side of the housing, a spraying assembly on the left side of the housing, a buffer assembly inside the housing, a handle at the bottom of the housing, and a control assembly inside the housing.

[0006] Optionally, the spraying assembly includes a connecting ring installed on the left side of the housing, with a spray nozzle threaded onto the outer surface of the connecting ring. Two sets of through holes are provided on the left side of the housing. A piston is fixedly installed on the inner wall of the housing, and a set of insert rods is fixedly installed on the left end of the piston. The left side of each insert rod is adapted to the through hole.

[0007] By adopting the above technical solution, the cooperation of the through hole, the insert rod, and the piston can enable the insert rod to clear the through hole and prevent it from becoming blocked.

[0008] Optionally, the buffer assembly includes a connecting plate mounted on the right side of the piston, a spring fixedly mounted on the right side of the connecting plate, the right end of the spring fixedly mounted to the inner wall of the housing, a push rod fixedly mounted on the right side of the connecting plate, a reinforcing ring fixedly mounted on the outer surface of the push rod, the left side of the reinforcing ring fixedly mounted to the right side of the connecting plate, two push blocks fixedly mounted on the outer surface of the push rod, and two sets of paddles fixedly mounted on the inner wall of the housing.

[0009] By adopting the above technical solution, the piston can use its pressure to push the connecting plate to move after the through hole becomes blocked, thereby compressing the spring, increasing the capacity for water-based coatings, reducing pipeline pressure, and preventing pipeline detachment and damage.

[0010] Optionally, the control component includes a control rod slidably mounted on the inner wall of the opening, with a magnetic block fixedly mounted on the left end of the control rod, the magnetic block attracting the top rod.

[0011] By adopting the above technical solution, the control rod can apply a thrust to the push rod, so that the push rod can push the piston and the insert rod to move, and the piston can be inserted into the inside of the through hole, thereby facilitating the unblocking of the through hole.

[0012] Optionally, the handle includes a column mounted on the bottom surface of the housing, and an anti-slip sleeve is fixedly mounted on the outer surface of the column.

[0013] Optionally, connecting seats are fixedly installed on both the left and right sides of the column, and the upper surface of each connecting seat is fixedly installed to the bottom surface of the shell.

[0014] By adopting the above technical solutions, the handle and anti-slip sleeve can make it easy to hold the device and prevent slippage when picking it up; the connecting seat can reinforce the column and prevent the column from becoming loose.

[0015] Optionally, a set of U-shaped clips are fixedly installed on the upper surface of the housing, and an indicator is fixedly installed on the front of the housing.

[0016] By adopting the above technical solution, the U-shaped clamp can position the conveying pipeline and prevent the pipeline from becoming loose.

[0017] Optionally, a sealing ring is fixedly installed on the left side of the piston, and the outer surface of the sealing ring is in contact with the inner wall of the housing.

[0018] By adopting the above technical solution, the sealing ring can increase the sealing performance of the piston and prevent leakage of water-based coatings.

[0019] In summary, this application includes at least one of the following beneficial technical effects: 1. The system features a through-hole for filtering water-based coatings, and a nozzle and connecting pipe for spraying the coatings. A control rod and push rod work together to move the connecting plate, allowing the piston to insert a rod into the through-hole, thus clearing the blockage and preventing nozzle clogging. This ensures the water-based coatings can be sprayed smoothly. Simultaneously, the spring and connecting plate work together to move the piston to the right if the through-hole becomes blocked, increasing space on the left side of the piston and preventing excessive pressure in the conveying pipe after blockage, which could cause the pipe to detach or be damaged. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a water-based coating spray gun according to an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of the structure of the spraying assembly in an embodiment of this application.

[0022] Figure 3 This is a schematic diagram of the structure of the buffer component in an embodiment of this application.

[0023] Figure 4 This is a schematic diagram of the structure of the control component in an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Housing; 101. Connecting pipe; 102. Indicator; 103. U-shaped clip; 104. Through port; 2. Spraying assembly; 201. Connecting ring; 202. Spray nozzle; 203. Through hole; 204. Piston; 205. Insert rod; 206. Sealing ring; 3. Control assembly; 301. Control lever; 302. Magnetic block; 4. Handle; 401. Column; 402. Anti-slip sleeve; 403. Connecting seat; 5. Buffer assembly; 501. Connecting plate; 502. Spring; 503. Top rod; 504. Top block; 505. Paddle; 506. Reinforcing ring. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0026] This application discloses a water-based paint spray gun. (Refer to...) Figure 1 and Figure 2 A water-based paint spray gun includes a housing 1, with a connecting pipe 101 fixedly connected to the upper surface of the housing 1. A spraying assembly 2 is located on the left side of the housing 1. A control assembly 3 is located inside the housing 1, and an opening 104 is provided on the right side of the housing 1. One end of the control assembly 3 extends out of the housing from the opening 104 for manual operation by the operator. A buffer assembly 5 is also located inside the housing 1, and a handle 4 is located at the bottom of the housing 1 for easy gripping by the operator.

[0027] Reference Figure 2and Figure 3 The spraying assembly 2 includes a connecting ring 201 installed on the left side of the housing 1. A nozzle 202 is threaded onto the outer surface of the connecting ring 201. Two sets of through holes 203 are provided on the left side of the housing 1. A piston 204 is fixedly installed on the inner wall of the housing 1. A set of insert rods 205 is fixedly installed on the left end of the piston 204. The left side of each insert rod 205 is adapted to the through hole 203.

[0028] By using the combination of the through hole 203, the insert rod 205 and the piston 204, the insert rod 205 can clear the through hole 203 and prevent the through hole 203 from becoming blocked.

[0029] Reference Figure 4 A sealing ring 206 is fixedly installed on the left side of the piston 204, and the outer surface of the sealing ring 206 is in contact with the inner wall of the housing 1. The sealing ring 206 can increase the sealing performance of the piston 204 and prevent water-based paint leakage.

[0030] Reference Figure 2 and Figure 3 The buffer assembly 5 includes a connecting plate 501 installed on the right side of the piston 204. A spring 502 is fixedly installed on the right side of the connecting plate 501. The right end of the spring 502 is fixedly installed to the inner wall of the housing 1. A push rod 503 is fixedly installed on the right side of the connecting plate 501. A reinforcing ring 506 is fixedly installed on the outer surface of the push rod 503. The left side of the reinforcing ring 506 is fixedly installed to the right side of the connecting plate 501. Two push blocks 504 are fixedly installed on the outer surface of the push rod 503. Two sets of paddles 505 are fixedly installed on the inner wall of the housing 1.

[0031] By cooperating with the spring 502 and the piston 204, the piston 204 can push the connecting plate 501 to move when the through hole 203 is blocked, thereby compressing the spring 502, increasing the capacity for water-based coatings, reducing pipeline pressure, and preventing pipeline detachment and damage.

[0032] Reference Figure 3 and Figure 4 The control component 3 includes a control rod 301 that is slidably installed on the inner wall of the opening 104. A magnetic block 302 is fixedly installed on the left end of the control rod 301, and the magnetic block 302 attracts the top rod 503. By providing a control rod 301, a thrust can be applied to the push rod 503, which can push the piston 204 and the insertion rod 205 to move, so that the piston 204 can be inserted into the through hole 203, thereby facilitating the unblocking of the through hole 203.

[0033] Reference Figure 1The handle 4 includes a column 401 mounted on the bottom surface of the housing 1, and an anti-slip sleeve 402 is fixedly mounted on the outer surface of the column 401. The handle 4 and the anti-slip sleeve 402 facilitate holding the device and prevent slippage during handling. Connecting seats 403 are fixedly mounted on both the left and right sides of the column 401, and the upper surface of each connecting seat 403 is fixedly mounted to the bottom surface of the housing 1. The connecting seats 403 reinforce the column 401 and prevent it from becoming loose.

[0034] Reference Figure 1 A set of U-shaped clips 103 are fixedly installed on the upper surface of the housing 1, and an indicator 102 is fixedly installed on the front of the housing 1. The U-shaped clips 103 can be used to position the conveying pipe and prevent the conveying pipe from becoming loose.

[0035] The implementation principle of a water-based paint spray gun according to this application embodiment is as follows: During use, the device is connected to a connecting pipe via a connecting pipe 101. When the pipe enters the device, the water-based material enters the nozzle 202 through the through-hole 203, allowing the nozzle 202 to spray the water-based material. When the through-hole 203 becomes blocked, the internal pressure increases. Under high pressure, the water-based material squeezes the piston 204, causing the piston 204 to move to the right. This allows the piston 204 to push the connecting plate 501, which in turn squeezes the spring 502, increasing the space on the left side of the piston 204 for water spraying. The water-based coating provides a buffer, effectively preventing the pipeline from loosening and giving the operator time to shut off the supply equipment. The push rod 503 pushes the push block 504, which in turn pushes the paddle 505, causing it to vibrate after separating from the push block 504. This lifts the operator, allowing them to shut off the water-based coating supply mechanism in time. Then, the operator pushes the control rod 301, which in turn pushes the push rod 503, which in turn pushes the connecting plate 501. The connecting plate 501 then pushes the piston 204 and the insert rod 205, causing the insert rod 205 to open the blocked through hole 203.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water-based paint spray gun, comprising a housing (1), characterized in that: The upper surface of the housing (1) is fixedly connected to a connecting pipe (101), the right side of the housing (1) is provided with an opening (104), the left side of the housing (1) is provided with a spraying assembly (2), the inside of the housing (1) is provided with a buffer assembly (5), the bottom of the housing (1) is provided with a handle (4), and the inside of the housing (1) is provided with a control assembly (3).

2. The water-based paint spray gun according to claim 1, characterized in that: The spraying assembly (2) includes a connecting ring (201) installed on the left side of the housing (1). The outer surface of the connecting ring (201) is threaded with a nozzle (202). The left side of the housing (1) has two sets of through holes (203). A piston (204) is fixedly installed on the inner wall of the housing (1). A set of insert rods (205) is fixedly installed on the left end of the piston (204). The left side of each insert rod (205) is adapted to the through hole (203).

3. The water-based paint spray gun according to claim 2, characterized in that: The buffer assembly (5) includes a connecting plate (501) installed on the right side of the piston (204). A spring (502) is fixedly installed on the right side of the connecting plate (501). The right end of the spring (502) is fixedly installed on the inner wall of the housing (1). A push rod (503) is fixedly installed on the right side of the connecting plate (501). A reinforcing ring (506) is fixedly installed on the outer surface of the push rod (503). The left side of the reinforcing ring (506) is fixedly installed on the right side of the connecting plate (501). Two push blocks (504) are fixedly installed on the outer surface of the push rod (503). Two sets of paddles (505) are fixedly installed on the inner wall of the housing (1).

4. The water-based paint spray gun according to claim 3, characterized in that: The control component (3) includes a control rod (301) that is slidably mounted on the inner wall of the opening (104). A magnetic block (302) is fixedly mounted on the left end of the control rod (301), and the magnetic block (302) attracts the top rod (503).

5. A water-based paint spray gun according to claim 1, characterized in that: The handle (4) includes a column (401) installed on the bottom surface of the housing (1), and an anti-slip sleeve (402) is fixedly installed on the outer surface of the column (401).

6. A water-based paint spray gun according to claim 5, characterized in that: The column (401) is fixedly installed with connecting seats (403) on both the left and right sides, and the upper surface of each connecting seat (403) is fixedly installed with the bottom surface of the shell (1).

7. A water-based paint spray gun according to claim 1, characterized in that: A set of U-shaped clips (103) are fixedly installed on the upper surface of the housing (1), and an indicator (102) is fixedly installed on the front of the housing (1).

8. A water-based paint spray gun according to claim 2, characterized in that: A sealing ring (206) is fixedly installed on the left side of the piston (204), and the outer surface of the sealing ring (206) is in contact with the inner wall of the housing (1).

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