Storable pressing type paint roller brush

Abstract

The utility model discloses a storable pressing type paint roller brush, belongs to the technical field of coating tools, and provides a storable pressing type paint roller brush which is more convenient to use and comprises a hollow push rod, the push rod is provided with a transverse pipe part and a longitudinal pipe part which are integrated, the transverse pipe part is sleeved with a brush cylinder and an air bag, and the air bag is located between the transverse pipe part and the brush cylinder. An air cylinder is arranged at the tail end of the longitudinal pipe part, a detachable end cover is arranged at one end of the brush cylinder, a main body part of the brush cylinder is a cylinder body, a plurality of liquid flow holes penetrating through the inner side wall and the outer side wall are formed in the cylinder body, and bristles are fixedly connected to the outer side face of the cylinder body. By arranging the brush cylinder with the liquid flow holes, more paint is stored in the brush cylinder, meanwhile, the air cylinder is arranged at the tail of the push rod, the air bag is arranged in the brush cylinder, when the thickness of the coated paint is reduced, the air cylinder is pressed, the paint in the brush cylinder is extruded out through expansion of the air bag, and the paint reduced due to coating on the surface of the brush cylinder is compensated; the use is more convenient.

Description

Technical Field

[0001] This application relates to the technical field of coating tools, and particularly to a storage-pressurized paint roller brush. Background Art

[0002] A paint brush is one of the tools for paint coating. Existing paint brushes need to repeatedly dip into a paint bucket to make up for the paint consumed on the brush surface during the coating process. This not only requires a large amount of labor, but also the paint on the surface of the paint roller is likely to drip and pollute the floor or wall after dipping the paint. Summary of the Invention

[0003] The purpose of this application is to provide a storage-pressurized paint roller brush that is more convenient to use.

[0004] To achieve the above purpose, this application provides a storage-pressurized paint roller brush: including a hollow push rod, the push rod has an integrated horizontal pipe portion and a vertical pipe portion, a brush barrel and an airbag are sleeved outside the horizontal pipe portion, the airbag is located between the horizontal pipe portion and the brush barrel, the inside of the airbag is only communicated with the inside of the push rod, an air cylinder is provided at the end of the vertical pipe portion, which is suitable for inflating the airbag through the push rod, one end of the brush barrel is provided with a detachable end cap, the main body part of the brush barrel is a cylindrical body, the cylindrical body is provided with a number of liquid flow holes penetrating the inner and outer side walls, and the outer side surface of the cylindrical body is fixedly connected with bristles for adsorbing the paint overflowing from the surface of the cylindrical body.

[0005] As a preference, the main body part of the airbag is an elastic bag, the horizontal pipe portion passes through the elastic bag twice, the elastic bag is connected to the horizontal pipe portion through a sealing ring, and an air injection hole is provided at the position of the horizontal pipe portion between the two sealing rings, the air injection hole penetrates the inner and outer pipe walls of the horizontal pipe portion for communicating the push rod with the airbag.

[0006] As a preference, there is also an inclined pipe portion between one end of the horizontal pipe portion and the vertical pipe portion, a roller is fixedly connected to the other end of the horizontal pipe portion, the end of the brush barrel close to the roller has an end ring, and a chute is provided on the inner wall of the end ring, which is suitable for forming a rotating pair with the roller to maintain the end of the horizontal pipe portion on the axis of the cylindrical body.

[0007] As a preference, an internal thread is also provided on the inner wall of the end ring, the end cap includes an embedded portion, and an external thread is provided on the outer side surface of the embedded portion, which is suitable for cooperating with the internal thread to take into account stability and leak prevention.

[0008] As a preference, one end of the embedded portion also has an external pressing portion, and a ribbed groove is provided on the outer side surface of the external pressing portion, which can increase the contact friction when rotating the external pressing portion.

[0009] As an optimization, the other end of the brush barrel near the inclined pipe portion is provided with an end plate, and a shaft hole is opened in the center of the end plate, which is adapted to cooperate with the horizontal pipe portion to form a rotating pair, so that the brush barrel can rotate along the axis of the horizontal pipe portion.

[0010] As an optimization, an exhaust valve is fixedly connected between the air cylinder and the vertical pipe portion. One end of the exhaust valve is provided with an air leakage port, and the other end is provided with a knob. The knob is adapted to control the communication state between the air leakage port and the vertical pipe portion for quickly contracting the airbag.

[0011] As an optimization, a handle stop is fixedly connected at the transition between the vertical pipe portion and the inclined pipe portion. A handle is sleeved outside the vertical pipe portion. The handle is provided with a through hole penetrating through both ends for the vertical pipe portion to pass through. One end of the handle is fixedly connected to the handle stop, and an annular groove is provided on the outer side surface of the handle to reduce the probability of sliding when held by hand.

[0012] Compared with the prior art, the beneficial effects of the present application are as follows:

[0013] (1) By providing a brush barrel with liquid flow holes, more paint is stored in the brush barrel. At the same time, an air cylinder is provided at the tail of the push rod, and an airbag is provided inside the brush barrel. When the thickness of the applied paint becomes thinner, the air cylinder is pressed to extrude the paint in the brush barrel by the expansion of the airbag to compensate for the paint reduced on the surface of the brush barrel due to application. The paint roller does not need to repeatedly dip into the paint bucket, reducing the labor intensity of workers, making it more convenient to use, and effectively avoiding the pollution caused by the dripping of the dipped paint.

[0014] (2) On the other hand, since the paint roller brush does not need to dip into the paint, the roller does not need to leave the wall surface before the paint in the brush barrel is consumed, and it also makes the paint application process more continuous, which can improve the paint application uniformity to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the overall structure of the storage and press-type paint roller brush.

[0016] Figure 2 It is a three-dimensional sectional view of the overall structure of the storage and press-type paint roller brush.

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the airbag configured on the push rod of the storage and press-type paint roller brush.

[0018] Figure 4 It is a three-dimensional structure schematic diagram of the roller configured at the end of the push rod of the storage and press-type paint roller brush.

[0019] Figure 5It is a three-dimensional structural sectional view of the airbag of the storable push-type paint roller brush.

[0020] Figure 6 It is a three-dimensional structural sectional view of the brush barrel of the storable push-type paint roller brush.

[0021] Figure 7 It is a three-dimensional structural schematic diagram of the end cap of the storable push-type paint roller brush.

[0022] Figure 8 It is a three-dimensional structural schematic diagram of the handle of the storable push-type paint roller brush.

[0023] In the figure: 1. Push rod; 101. Horizontal pipe part; 102. Air injection hole; 103. Inclined pipe part; 104. Handle block; 105. Vertical pipe part; 2. Handle; 201. Through hole; 202. Ring groove; 3. Exhaust valve; 301. Air leakage port; 302. Knob; 4. Air cylinder; 5. Brush barrel; 501. Cylindrical body; 502. Liquid flow hole; 503. End plate; 504. Shaft hole; 505. End ring; 506. Slide groove; 507. Internal thread; 508. Bristles; 6. End cap; 601. Embedded part; 602. External pressure part; 603. External thread; 604. Flute; 7. Airbag; 701. Elastic bladder; 702. Sealing ring; 8. Roller. Detailed implementation manners

[0024] Next, in combination with the detailed implementation manners, the present application will be further described. It should be noted that, on the premise of non-conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0025] In the description of the present application, it should be noted that for the orientation terms, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationships are based on the orientation or position relationships shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence.

[0027] As used in the description and claims of this application, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to such process, method, product, or device.

[0028] As Figure 1-8 shown, the storable press-type paint roller brush includes a hollow push rod 1 made of a corrosion-resistant alloy material. The push rod 1 has an integral transverse tube portion 101 and a longitudinal tube portion 105. The transverse tube portion 101 and the longitudinal tube portion 105 are usually perpendicular to each other in the same plane. A brush barrel 5 and an airbag 7 are sleeved outside the transverse tube portion 101. The airbag 7 is located between the transverse tube portion 101 and the brush barrel 5, that is, the airbag 7 is sleeved outside the transverse tube portion 101 and is entirely located inside the brush barrel 5. The interior of the airbag 7 is only communicated with the interior of the push rod 1, separating the interior space of the brush barrel 5 into two parts. The main body portion of the airbag 7 is an elastic bladder 701, usually made of rubber material, and of course it can also be silica gel, as long as it is insoluble in paint and has good elasticity and toughness. The transverse tube portion 101 passes through the elastic bladder 701 twice, and the elastic bladder 701 is connected to the transverse tube portion 101 through a sealing ring 702 at the position where the transverse tube portion 101 passes through. The sealing ring 702 is tightly fastened to the outer side surface of the transverse tube portion 101, which can well ensure the airtightness of the elastic bladder 701. The transverse tube portion 101 is provided with an air injection hole 102 at the position between the two sealing rings 702. The air injection hole 102 penetrates the inner and outer tube walls of the transverse tube portion 101, that is, the air injection hole 102 communicates the push rod 1 with the interior of the airbag 7.

[0029] An air cylinder 4 is provided at the end of the longitudinal tube portion 105. The air cylinder 4 is of the hand-squeezing type, and its internal one-way valve structure can allow air to be transported unidirectionally for inflating the airbag 7 through the push rod 1. The hand-squeezing type air cylinder 4 belongs to the prior art and is not the design key point of this application, so it will not be elaborated here. An exhaust valve 3 is also fixedly connected between the air cylinder 4 and the longitudinal tube portion 105. One end of the exhaust valve 3 is provided with a deflation port 301, and the other end is provided with a knob 302. The knob 302 controls the communication state between the deflation port 301 and the longitudinal tube portion 105. When the knob 302 is rotated to the position where the deflation port 301 is disconnected from the longitudinal tube portion 105, the air in the airbag 7 and the push rod 1 will not leak, and the internal air pressure can remain relatively constant. Only at this time is it meaningful to press the air cylinder 4 to inflate. When the knob 302 is rotated to the position where the deflation port 301 is communicated with the longitudinal tube portion 105, due to the elastic contraction of the elastic bladder 701, the air in the airbag 7 and the push rod 1 will be discharged, and it is difficult to prevent the contraction of the airbag 7 even if the air cylinder 4 is quickly pressed.

[0030] A handle stop 104 is fixedly connected at the transition between the vertical pipe portion 105 and the inclined pipe portion 103. Generally, it is fixed on the push rod 1 by welding. A handle 2 is sleeved outside the vertical pipe portion 105. The handle 2 is generally made of non-metallic materials such as plastic or wood to improve the holding feel and reduce the fatigue of the hand when painting. The handle 2 is provided with a through hole 201 penetrating both ends, which just allows the vertical pipe portion 105 to pass through. One end of the handle 2 is fixedly connected to the handle stop 104, which can generally be bonded by curing glue. The outer side surface of the handle 2 is provided with an annular groove 202 to increase the contact friction between the hand and the handle 2 when holding and reduce the probability of hand slipping during the painting process.

[0031] One end of the brush barrel 5 is provided with a detachable end cap 6 for closing an open end of the brush barrel 5. The main body part of the brush barrel 5 is a cylindrical body 501. There is also an inclined pipe portion 103 between one end of the horizontal pipe portion 101 and the vertical pipe portion 105. The inclined pipe portion 103 is completely located outside the brush barrel 5. The other end of the horizontal pipe portion 101 is fixedly connected with a roller 8. The end of the brush barrel 5 close to the roller 8 has a coaxial end ring 505. The inner wall of the end ring 505 is provided with a chute 506, which just forms a rotating pair with the roller 8 to maintain the horizontal pipe portion 101 at the axis position of the brush barrel 5 and at the same time can prevent the horizontal pipe portion 101 from moving axially relative to the brush barrel 5. The inner wall of the end ring 505 is also provided with an internal thread 507, and the internal thread 507 is closer to the end face of the brush barrel 5 than the chute 506. The specific structure of the end cap 6 includes an embedded part 601. The outer side surface of the embedded part 601 is provided with an external thread 603 for cooperating with the internal thread 507 to take into account stability and sealing. One end of the embedded part 601 also has an external pressing part 602. The diameter of the external pressing part 602 is equivalent to the diameter of the cylindrical body 501 to limit the screwing depth of the embedded part 601. The outer side surface of the external pressing part 602 is provided with rib grooves 604, and the extending direction of the rib grooves 604 is the same as the diameter direction of the external pressing part 602 to increase the friction when rotating the external pressing part 602. The other end of the brush barrel 5 close to the inclined pipe portion 103 has a coaxial end plate 503. The center of the end plate 503 is provided with an axial hole 504 penetrating the inner and outer walls, which just forms a rotating pair with the horizontal pipe portion 101. In this way, both ends of the horizontal pipe portion 101 are constrained and can maintain a high coaxiality with the cylindrical body 501.

[0032] The cylindrical body 501 is provided with a number of liquid flow holes 502 penetrating the inner and outer side walls. There are several rows of the liquid flow holes 502, and several rows of the liquid flow holes 502 are equally spaced around the axis of the cylindrical body 501. Each row of the liquid flow holes 502 has several, and they are also evenly arranged. The outer side surface of the cylindrical body 501 is fixedly connected with bristles 508. The bristles 508 are located between the rows of the liquid flow holes 502 to adsorb the paint overflowing from the liquid flow holes 502 and then apply the paint to the surfaces to be decorated such as walls.

[0033] Working principle: When in use, first remove the end cap 6, then open the exhaust valve 3 to discharge the air in the airbag 7. When observing that the airbag 7 shrinks to an appropriate degree, close the exhaust valve 3, and inject an appropriate amount of paint into the brush barrel 5. Since the aperture of the liquid flow hole 502 is relatively small, the paint with a certain viscosity will not quickly overflow from the liquid flow hole 502. Even if there is a small amount of overflow, it will be adsorbed by the bristles 508 on the outside of the brush barrel 5. Therefore, there is no need to worry too much about the paint leaking from the brush barrel 5 during the paint filling process. Finally, screw on the end cap 6 and press the air cylinder 4 to inflate the airbag 7. The paint in the brush barrel 5 is accelerated to overflow from the liquid flow hole 502 under the additional pressure and diffuses into the gaps between the bristles 508. Hold the handle 2 and press the brush barrel 5 against the wall, and the paint on the bristles 508 will be transferred to the wall. When it is found that the applied paint becomes significantly thinner, press the air cylinder 4 with the other hand again to expand the airbag 7 and continue to squeeze out the paint in the brush barrel 5. In this way, it is not necessary to repeatedly dip the paint in the paint bucket in multiple layers like a traditional paintbrush.

[0034] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, there will be various changes and improvements to the present application, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A storable press-type paint roller brush, characterized in that: The invention comprises a hollow push rod (1), wherein the push rod (1) has an integral transverse tube portion (101) and a longitudinal tube portion (105); the transverse tube portion (101) is provided with a brush cylinder (5) and an air bag (7); the air bag (7) is located between the transverse tube portion (101) and the brush cylinder (5); the interior of the air bag (7) is only connected to the interior of the push rod (1); an air cylinder (4) is provided at the end of the longitudinal tube portion (105), which is suitable for inflating the air bag (7) through the push rod (1); a detachable end cover (6) is provided at one end of the brush cylinder (5); the main body of the brush cylinder (5) is a cylindrical body (501); the cylindrical body (501) is provided with a plurality of liquid flow holes (502) penetrating the inner and outer side walls; and the outer side surface of the cylindrical body (501) is fixedly connected with bristles (508).

2. The storable press-type paint roller brush according to claim 1, characterized in that: The main part of the airbag (7) is an elastic bag (701), the transverse tube (101) passes through the elastic bag (701) twice, the elastic bag (701) is connected to the transverse tube (101) through a sealing ring (702), and the transverse tube (101) is provided with an air injection hole (102) at a position located between the two sealing rings (702), and the air injection hole (102) passes through the inner and outer tube walls of the transverse tube (101).

3. The storable press-type paint roller brush according to claim 1, characterized in that: An oblique tube portion (103) is provided between one end of the transverse tube portion (101) and the longitudinal tube portion (105); the other end of the transverse tube portion (101) is fixedly connected to a roller (8); an end of the brush cylinder (5) close to the roller (8) is provided with an end ring (505); a sliding groove (506) is provided on the inner wall of the end ring (505) and is suitable for forming a rotating pair with the roller (8).

4. The storable press-type paint roller brush according to claim 3, characterized in that: The inner wall of the end ring (505) is also provided with an internal thread (507), and the end cover (6) includes an embedded portion (601), and the outer side surface of the embedded portion (601) is provided with an external thread (603) suitable for matching with the internal thread (507).

5. The storable press-type paint roller brush according to claim 4, characterized in that: One end of the embedded portion (601) further comprises an external pressing portion (602), and an outer side surface of the external pressing portion (602) is provided with a corrugated groove (604).

6. The storable press-type paint roller brush according to claim 5, characterized in that: The other end of the brush cylinder (5) close to the oblique tube portion (103) has an end plate (503), and an axial hole (504) is provided in the center of the end plate (503), which is suitable for cooperating with the transverse tube portion (101) to form a rotating pair.

7. The storable press-type paint roller brush according to any one of claims 1 to 6, characterized in that: An exhaust valve (3) is also fixedly connected between the air cylinder (4) and the longitudinal tube portion (105), one end of the exhaust valve (3) is provided with an exhaust port (301), and the other end is provided with a knob (302), and the knob (302) is suitable for controlling the connection state between the exhaust port (301) and the longitudinal tube portion (105).

8. The storable press-type paint roller brush according to any one of claims 3 to 6, characterized in that: A stop handle (104) is fixedly connected to the transition between the longitudinal tube portion (105) and the oblique tube portion (103); a handle (2) is disposed on the outer surface of the longitudinal tube portion (105); the handle (2) is provided with through holes (201) passing through both ends for the longitudinal tube portion (105) to pass through; one end of the handle (2) is fixedly connected to the stop handle (104); and an annular groove (202) is disposed on the outer side surface of the handle (2).

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