Spray gun with detachable filter screen

Abstract

The utility model discloses a spray gun with a detachable filter screen, relates to the technical field of spray guns, and aims to solve the problems that in the prior art, a filter device is located in a gun body and cannot be visually observed, so that a worker cannot judge whether impurities exist at the filter screen or not, and the filter screen of the existing gun body is extremely complicated to disassemble and inconvenient to maintain. According to the scheme, the spray gun comprises a spray gun body, the tail end of the spray gun body is connected with a filtering mechanism, and the filtering mechanism comprises a transparent shell, a water inlet pipe inserted and fixed to the bottom of the transparent shell and a filtering assembly arranged in the transparent shell. The outer threaded pipe is in threaded connection with the tail end of the spray gun body, so that the filtering mechanism is fixedly connected with the spray gun body, then the filtering assembly is inserted into the transparent shell through the limiting block, and after the insertion pipe is inserted into the outer threaded pipe, the filtering assembly can be inserted into the transparent shell, and paint enters the transparent shell through the water inlet pipe; and through filtering and screening of the filtering assembly, large particles in the coating are intercepted.

Description

Technical Field

[0001] The utility model relates to the technical field of spray guns, in particular to a spray gun with a detachable filter screen. Background Art

[0002] A spray gun is a device that uses liquid or compressed air to release quickly as power. Spray guns are divided into two types: general pressure type and pressurized type. Spray guns also include pressure spray guns, Carle spray guns, and automatic recovery spray guns. Spray guns can be used in the industry to directly load paint, that is, simple spray guns, which can be installed in automated equipment, such as automatic glue spraying machines, automatic glue coating machines, automatic paint spraying machines, coating machines and other spraying equipment.

[0003] During the process of disassembling, opening and transferring paint, dust and impurities often enter. Although they can be sprayed out through the spray gun, they will pollute the wall coating. Therefore, in order to ensure the quality of the spray coating, some spray guns that can filter have emerged on the market.

[0004] The current spray gun filter device is located inside the gun body and cannot be visually inspected, which makes it impossible for workers to determine whether there are impurities in the filter screen. In addition, the current gun body filter screen is extremely complicated to disassemble and is not convenient for maintenance. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a detachable filter spray gun, which overcomes the deficiencies of the prior art and effectively solves the problem that the filter device in the prior art is located inside the gun body and cannot be visually seen, which makes it impossible for workers to determine whether there are impurities in the filter, and the current gun body filter is extremely complicated to disassemble and inconvenient to maintain.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A detachable filter spray gun comprises a spray gun body, the tail end of the spray gun body is connected to a filter mechanism, and the filter mechanism comprises a transparent shell, a water inlet pipe plugged and fixed to the bottom of the transparent shell, and a filter assembly arranged in the transparent shell, the filter assembly comprises a round block, a connecting rod fixed to the outer wall of one side of the round block in an annular shape and at equal distances, a circular ring fixed to the other end of the connecting rod, a filter screen fixed between two adjacent connecting rods, and a plug pipe plugged and fixed to the inner wall of the circular ring.

[0008] The filter mechanism is connected and fixed to the spray gun body by screwing the external threaded tube to the tail end of the spray gun body, and then the filter assembly is inserted into the transparent shell through the limit block, and after the insertion tube is plugged into the external threaded tube, the filter assembly can be plugged into the transparent shell, and the paint enters the transparent shell through the water inlet pipe, and is filtered and screened by the filter assembly to intercept large particles in the paint, and the filter assembly can be easily cleaned by pulling out the filter assembly.

[0009] Preferably, an externally threaded tube is inserted and fixed to one end of the transparent shell, and the externally threaded tube is threadedly connected to the rear end of the spray gun body.

[0010] The filter mechanism is connected and fixed to the spray gun body by screwing the external threaded pipe to the tail end of the spray gun body.

[0011] Preferably, a filling tube is plugged and fixed on the top of the outer wall of the transparent shell, and a pipe plug is plugged on the top of the filling tube.

[0012] By opening the pipe plug and connecting the external material pipe through the filling pipe, the spray gun body can spray a variety of coatings.

[0013] Preferably, an opening is formed at one end of the transparent shell away from the spray gun body, and a sealing ring is bonded to the annular inner wall of the opening.

[0014] The filter assembly and the transparent shell can be plugged together through the provided opening.

[0015] Preferably, the round block is plugged into the opening, and the round block forms a sealing fit with the opening via a sealing ring, and a limiting block is fixed to the outer wall of the other side of the round block, and the length of the limiting block is greater than the inner diameter of the opening.

[0016] After the filter assembly is plugged into the transparent shell, the connection is sealed by a sealing ring, and the filter assembly can be easily plugged in or pulled out by a set limit block.

[0017] Preferably, the insert tube is plugged into the externally threaded tube, and the outer diameter of the insert tube matches the inner diameter of the externally threaded tube.

[0018] After the insert tube is plugged into the external threaded tube, the filter assembly can realize the filtering function in the transparent shell.

[0019] The beneficial effects of the utility model are:

[0020] The filter mechanism is connected and fixed to the spray gun body by screwing the external threaded tube to the tail end of the spray gun body, and then the filter assembly is inserted into the transparent shell through the limit block, and after the insertion tube is plugged into the external threaded tube, the filter assembly can be plugged into the transparent shell, and the paint enters the transparent shell through the water inlet pipe, and is filtered and screened by the filter assembly to intercept large particles in the paint, and by pulling out the filter assembly, it is also convenient to clean the filter assembly, which effectively solves the problem that the filter device in the prior art is located inside the gun body and cannot be visually observed, which makes it impossible for workers to judge whether there are impurities in the filter screen, and the current gun body filter screen is extremely complicated to disassemble and inconvenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the overall structure of a detachable filter spray gun proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the filter mechanism structure of a detachable filter screen spray gun proposed by the utility model;

[0023] Figure 3 The utility model is a schematic diagram of the structure of a filter assembly of a detachable filter screen spray gun.

[0024] In the figure: 1. spray gun body; 2. filter mechanism; 3. transparent shell; 4. external threaded pipe; 5. water inlet pipe; 6. stuffing pipe; 7. pipe plug; 8. filter assembly; 9. round block; 10. limit block; 11. connecting rod; 12. ring; 13. filter screen; 14. intubation tube. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example:

[0027] Reference Figure 1-3 A detachable filter spray gun comprises a spray gun body 1, a filter mechanism 2 is connected to the rear end of the spray gun body 1, the filter mechanism 2 comprises a transparent shell 3, a water inlet pipe 5 plugged and fixed to the bottom of the transparent shell 3, and a filter assembly 8 arranged in the transparent shell 3, the filter assembly 8 comprises a round block 9, a connecting rod 11 fixed to the outer wall of one side of the round block 9 in an annular shape and at equal distances, a ring 12 fixed to the other end of the connecting rod 11, a filter screen 13 fixed between two adjacent connecting rods 11, and a plug 14 plugged and fixed to the inner wall of the ring 12;

[0028] An external threaded tube 4 is plugged and fixed at one end of the transparent shell 3, and the external threaded tube 4 is screwed to the tail end of the spray gun body 1. The filter mechanism 2 is connected and fixed to the spray gun body 1 through the screw connection between the external threaded tube 4 and the tail end of the spray gun body 1. A filling tube 6 is plugged and fixed to the top of the outer wall of the transparent shell 3, and a pipe plug 7 is plugged at the top of the filling tube 6. By opening the pipe plug 7, the filling tube 6 is connected to the external material pipe, so that the spray gun body 1 can spray a variety of coatings;

[0029] An opening is provided at one end of the transparent shell 3 away from the spray gun body 1, and a sealing ring is bonded to the annular inner wall of the opening. The filter component 8 can be plugged into the transparent shell 3 through the provided opening, and the round block 9 is plugged into the opening. The round block 9 forms a sealed fit with the opening through the sealing ring. A limiting block 10 is fixed to the outer wall of the other side of the round block 9. The length of the limiting block 10 is greater than the inner diameter of the opening. After the filter component 8 is plugged into the transparent shell 3, the connection is sealed by the sealing ring. The provided limiting block 10 facilitates the plugging or pulling out of the filter component 8. The insert tube 14 is plugged into the externally threaded tube 4, and the outer diameter of the insert tube 14 is adapted to the inner diameter of the externally threaded tube 4. After the insert tube 14 is plugged into the externally threaded tube 4, the filter component 8 can realize the filtering function in the transparent shell 3.

[0030] Working principle:

[0031] During operation, the filter mechanism 2 is connected and fixed to the spray gun body 1 by screwing the external threaded tube 4 to the tail end of the spray gun body 1, and then the filter assembly 8 is inserted into the transparent shell 3 through the limit block 10, and after the insertion tube 14 is plugged into the external threaded tube 4, the filter assembly 8 can be plugged into the transparent shell 3, and the paint enters the transparent shell 3 through the water inlet pipe 5, and is filtered and screened by the filter assembly 8 to intercept large particles in the paint, and by pulling out the filter assembly 8, it is also convenient to clean the filter assembly 8.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spray gun with a detachable filter, comprising a spray gun body (1), characterized in that: The tail end of the spray gun body (1) is connected to a filter mechanism (2), and the filter mechanism (2) comprises a transparent shell (3), a water inlet pipe (5) plugged and fixed to the bottom of the transparent shell (3), and a filter assembly (8) arranged in the transparent shell (3), wherein the filter assembly (8) comprises a round block (9), a connecting rod (11) fixed to the outer wall of one side of the round block (9) in an annular shape and at equal distances, a circular ring (12) fixed to the other end of the connecting rod (11), a filter screen (13) fixed between two adjacent connecting rods (11), and a plug (14) plugged and fixed to the inner wall of the circular ring (12).

2. A detachable filter spray gun according to claim 1, characterized in that: An external threaded tube (4) is inserted and fixed to one end of the transparent shell (3), and the external threaded tube (4) is threadedly connected to the rear end of the spray gun body (1).

3. A detachable filter spray gun according to claim 1, characterized in that: A filling tube (6) is inserted and fixed at the top of the outer wall of the transparent shell (3), and a pipe plug (7) is inserted at the top of the filling tube (6).

4. A detachable filter spray gun according to claim 1, characterized in that: An opening is formed at one end of the transparent shell (3) away from the spray gun body (1), and a sealing ring is bonded to the annular inner wall of the opening.

5. A detachable filter spray gun according to claim 4, characterized in that: The round block (9) is plugged into the opening, and the round block (9) forms a sealing fit with the opening via a sealing ring. A limiting block (10) is fixed to the outer wall of the other side of the round block (9), and the length of the limiting block (10) is greater than the inner diameter of the opening.

6. A detachable filter spray gun according to claim 2, characterized in that: The insert tube (14) is plugged into the externally threaded tube (4), and the outer diameter of the insert tube (14) is matched with the inner diameter of the externally threaded tube (4).

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