Negative pressure adsorption brush convenient to replace

Abstract

The utility model discloses a negative pressure adsorption brush convenient to replace, which relates to the field of brushes, and comprises a shell, the surface of the shell is provided with a mounting port, a mounting plate is arranged in the mounting port, the surface of the mounting plate is provided with bristles, and two sides of the mounting plate are fixedly connected with two sides of the mounting port through bolts; a handle is fixedly arranged on one side of the shell, an air bag is fixedly arranged at the bottom of the handle, an air inlet pipe is arranged on the side wall of the air bag, a first one-way valve is arranged on the pipe wall of the air inlet pipe, an air outlet pipe is arranged in the handle, one end of the air outlet pipe extends into the shell, and the other end of the air outlet pipe extends into the air bag. A second one-way valve is arranged on the pipe wall of the air outlet pipe, and a plurality of evenly-distributed air holes are formed in the surface of the mounting plate. The brush has a structure for dismounting and mounting the bristles, the bristles are convenient to replace, and meanwhile, the brush has the function of absorbing paint under negative pressure, so that the phenomenon that the paint falls off is avoided, and paint waste is avoided.

Description

Technical Field

[0001] This utility model relates to the field of brushes, specifically to a negative pressure adsorption brush that is easy to replace. Background Technology

[0002] Currently, when using a brush to apply paint to a substrate, the brush is first immersed in the paint, then dipped into the paint and applied to the surface of the substrate to complete the paint printing.

[0003] However, during the process of the brush leaving the paint and applying it to the substrate, the paint may fall off the brush due to gravity, resulting in paint waste. In addition, the brush bristles will wear down after prolonged use, so they need to be disassembled and replaced. Common brushes are fixed and do not have the function of replacement.

[0004] Therefore, a negative pressure adsorption brush that is easy to replace is proposed. Utility Model Content

[0005] In view of the problems existing in the above-mentioned paint brushes, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a negative pressure adsorption brush that is easy to replace, thus solving the problems raised in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A replaceable negative pressure adsorption brush includes a housing. The surface of the housing has an installation port, and the interior of the installation port has an installation plate. The surface of the installation plate is provided with bristles. Both sides of the installation plate are fixedly connected to both sides of the installation port by bolts. A handle is fixedly provided on one side of the housing. An air bladder is fixedly provided at the bottom of the handle. An air inlet pipe is provided on the side wall of the air bladder, and the wall of the air inlet pipe is provided with a first one-way valve. An air outlet pipe is provided inside the handle. One end of the air outlet pipe extends into the interior of the housing, and the other end of the air outlet pipe extends into the interior of the air bladder. The wall of the air outlet pipe is provided with a second one-way valve. The surface of the installation plate has multiple evenly distributed air holes.

[0009] Preferably, the mounting plate and the mounting opening both adopt a stepped snap-fit ​​structure.

[0010] Preferably, the airbag is made of elastic rubber, and a spring is fixed between the inner wall of the airbag and the bottom of the handle.

[0011] Preferably, the surface of the housing is configured with an inward right-angle bending structure on all four sides.

[0012] Furthermore, the first check valve is a gas check valve, and the second check valve is a steam trap.

[0013] Preferably, the plurality of air holes are evenly distributed in the gaps between the bristles.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. In this utility model, with the provided mounting plate and bolts, when it is necessary to disassemble and replace the brush bristles, the bolts can be loosened manually with a wrench so that the bolts can be removed from the mounting plate and the mounting opening, thereby removing the mounting plate from the housing and facilitating the replacement of new brush bristles.

[0016] 2. This utility model, through the inclusion of an airbag, an inlet pipe, a first one-way valve, an outlet pipe, a second one-way valve, and an air hole, allows for manual pressing of the airbag. When the airbag deforms, it releases internal gas into the outlet pipe, allowing the gas to enter the shell and exit through the air hole, creating a negative pressure inside the shell. When the manual hand leaves the airbag, external gas enters the airbag through the inlet pipe. Pressing the airbag again forces the gas back into the shell, repeatedly releasing a large amount of gas from inside the shell, increasing the negative pressure effect. Finally, when the shell and brush bristles are placed inside the paint, the negative pressure absorbs more paint inside the shell, preventing paint from falling off when the shell and brush bristles are removed, thus avoiding paint waste. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 For the present utility model Figure 1 A sectional view;

[0020] Figure 3 For the present utility model Figure 2 Enlarged view of the structure of part A in the middle section.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Housing; 2. Mounting port; 3. Mounting plate; 4. Brush bristles; 5. Bolt; 6. Handle; 7. Airbag; 8. Air inlet pipe; 9. First one-way valve; 10. Air outlet pipe; 11. Second one-way valve; 12. Air port. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figure 1-3 The present invention discloses a replaceable negative pressure adsorption brush, comprising a housing 1, wherein the surface of the housing 1 is provided with an installation port 2, and an installation plate 3 is provided inside the installation port 2. The four sides of the installation plate 3 and the four sides of the installation port are provided with a stepped snap-fit ​​structure, so that the installation port 3 can be stably snapped into the interior of the installation port 2. The surface of the installation plate 3 is provided with bristles 4. The two sides of the installation plate 3 are fixedly connected to the two sides of the installation port by bolts 5. The bolts 5 can be loosened manually by wrench, so that the bolts 5 can be removed from the position of the installation plate 3 and the installation port 2, thereby removing the installation plate 3 from the housing 1 for easy replacement of new bristles 4.

[0025] like Figure 1-2 As shown, a handle 6 is fixedly mounted on one side of the housing 1, and an airbag 7 is fixedly mounted on the bottom of the handle 6. The airbag 7 is made of elastic rubber, and a spring 13 is fixedly mounted between the inner wall of the airbag 7 and the bottom of the handle 6. The spring 13 increases the elastic recovery effect of the airbag 7. An air inlet pipe 8 is provided on the side wall of the airbag 7, and a first one-way valve 9 is provided on the wall of the air inlet pipe 8. An air outlet pipe 10 is provided inside the handle 6. One end of the air outlet pipe 10 extends into the interior of the housing 1, and the other end of the air outlet pipe 10 extends into the interior of the airbag 7. The wall of the air outlet pipe 10 is provided with... A second one-way valve 11 is provided. The first one-way valve 9 is a gas one-way valve, and the second one-way valve 11 is a steam trap. The steam trap can ensure the passage of gas and prevent the paint inside the housing 1 from flowing back into the air outlet pipe 10. The surface of the mounting plate 3 is provided with multiple evenly distributed air holes 12. The multiple air holes 12 are evenly distributed in the gaps of the bristles 4. The surface of the housing 1 is provided with an inward right-angle bending structure on all four sides. When the paint inside the housing 1 is discharged, the inward right-angle bending structure can guide it and improve the discharge effect of the paint.

[0026] When paint needs to be absorbed, the manual hand presses the air bladder 7. When the air bladder 7 deforms, it releases the internal gas into the air outlet pipe 10, allowing the gas to enter the shell 1 and be discharged outward through the air hole 12, creating a negative pressure inside the shell 1. When the manual hand leaves the air bladder 7, external gas enters the air bladder 7 through the air inlet pipe 8. Pressing the air bladder 7 again can force the gas back into the shell 1, thus repeatedly expelling a large amount of gas from inside the shell 1, increasing the negative pressure effect inside the shell 1. Finally, the shell 1 and brush bristles 4 are placed inside the paint. Due to the negative pressure, a large amount of paint can be absorbed inside the shell 1, preventing paint from falling off when the shell 1 and brush bristles 4 are removed, thus avoiding paint waste. When the paint needs to be discharged, the manual hand presses the air bladder 7 again, which can force gas into the shell 1 and discharge the paint outward through the air hole 12 for use.

[0027] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A replaceable negative pressure adsorption brush, comprising a housing (1), characterized in that: The surface of the housing (1) is provided with an installation port (2), and the interior of the installation port (2) is provided with an installation plate (3). The surface of the installation plate (3) is provided with bristles (4), and the two sides of the installation plate (3) are fixedly connected to the two sides of the installation port by bolts (5). A handle (6) is fixedly provided on one side of the housing (1), and an airbag (7) is fixedly provided at the bottom of the handle (6). An air inlet pipe (8) is provided on the side wall of the airbag (7), and a first one-way valve (9) is provided on the wall of the air inlet pipe (8). An air outlet pipe (10) is provided inside the handle (6). One end of the air outlet pipe (10) extends into the interior of the housing (1), and the other end of the air outlet pipe (10) extends into the interior of the airbag (7). A second one-way valve (11) is provided on the wall of the air outlet pipe (10). A plurality of evenly distributed air holes (12) are opened on the surface of the mounting plate (3).

2. The easily replaceable negative pressure adsorption brush according to claim 1, characterized in that: The mounting plate (3) and the mounting opening are both equipped with a stepped snap-fit ​​structure.

3. The easily replaceable negative pressure adsorption brush according to claim 1, characterized in that: The airbag (7) is made of elastic rubber, and a spring (13) is fixed between the inner wall of the airbag (7) and the bottom of the handle (6).

4. The easily replaceable negative pressure adsorption brush according to claim 1, characterized in that: The surface of the housing (1) is designed with an inward right-angle bending structure on all four sides.

5. The easily replaceable negative pressure adsorption brush according to claim 1, characterized in that: The first check valve (9) is a gas check valve, and the second check valve (11) is a steam trap.

6. The easily replaceable negative pressure adsorption brush according to claim 1, characterized in that: Multiple air holes (12) are evenly distributed in the gaps between the bristles (4).

Images