A coating device for building decoration

Abstract

The invention relates to a paint coating device for building decoration applied in the field of building decoration, comprising a handheld pipe rod with a hollow interior, a telescopic flexible pipe installed at the lower end of the handheld pipe rod, a main roller brush rotatably installed at the upper end of the handheld pipe rod, a main shaft fixed in the middle of the main roller brush, a paint distribution narrow cavity opened in the main roller brush, the upper end of the handheld pipe rod is rotatably connected to one end of the main shaft through a rotating connecting pipe, a feed disc is sleeved on the outer side of the rotating connecting pipe, a channel is provided on the feed disc and the rotating connecting pipe, the channel connects the paint distribution narrow cavity and the handheld pipe rod, a one-way pumping assembly is installed on the inner side of the end of the handheld pipe rod close to the main roller brush, and a follow-up mechanism is installed on the end of the main shaft close to the handheld pipe rod. The feed disc, the one-way pumping assembly and the follow-up mechanism are adopted to avoid the uniformity and effect of coating, thereby ensuring the coating quality under the premise of avoiding multiple dipping of paint, which is more conducive to uniformly coating the building surface for decoration.

Description

Technical Field

[0001] The invention relates to a paint coating device, in particular to a paint coating device for building decoration applied in the field of building decoration. Background Art

[0002] When decorating the interior of a building, it is usually necessary to use paint to paint the walls to make them smoother and more beautiful.

[0003] However, most of the traditional coating devices are disposable, and dipping is not very convenient.

[0004] In order to solve the above problems, the Chinese patent CN217054185U specification discloses a paint coating device for architectural decoration, which belongs to the field of architectural decoration, and includes a connecting rod; a plurality of coating rollers; a plurality of coating rollers are arranged at intervals or in parallel on the connecting rod; wherein the first end of the coating roller is rotatably connected to the connecting rod, and the second end of the coating roller is a free end; a material storage cavity is provided in the coating roller; a plurality of material storage barrels, the material storage barrels are located on the side away from the connecting rod, and are arranged one by one with the coating rollers; a connecting pipe is provided between the material storage barrel and the coating roller, the first end of the connecting pipe is connected to the material storage barrel, and the second end of the connecting pipe is connected to the material storage cavity. The paint coating device for architectural decoration is convenient to use because it does not need to be repeatedly dipped in the material due to the provision of a material storage barrel; at the same time, by providing a main coating roller and an auxiliary coating roller, the work efficiency is improved, and it is convenient to apply different colors of paint at the same time.

[0005] Although the above-mentioned prior art does not require multiple dipping in paint, the paint itself is heavy, which makes it more difficult for users to pick it up, easily causing arm fatigue and greatly reducing work continuity. At the same time, since the end away from the hand bears a greater weight, it is easy to cause unstable holding, reduced coating uniformity and effect, which is not conducive to the coating operation. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to provide a paint coating device for architectural decoration that can avoid the need for multiple dipping in paint and avoid a significant increase in the weight of the coating device (especially the far end away from the hand), thereby ensuring that the user can stably hold and operate the coating device when in use.

[0007] In order to solve the above problems, the present invention provides a paint coating device for building decoration, comprising a handheld pipe rod with a hollow interior, a telescopic flexible pipe connected to a paint bucket is installed at the lower end of the handheld pipe rod, and a main roller brush is rotatably installed at the upper end of the handheld pipe rod;

[0008] A main shaft is fixed in the middle of the main roller brush, and a paint distribution narrow cavity extending in a ring shape around the axis of the main roller brush is provided in the main roller brush, and the cross-sectional area of ​​the paint distribution narrow cavity is less than one sixth of the cross-sectional area of ​​the main roller brush;

[0009] The upper end of the hand-held pipe rod is rotatably connected to one end of the main shaft through a rotating connecting pipe, a feed tray is sleeved on the outer side of the rotating connecting pipe, and a channel is provided on the feed tray and the rotating connecting pipe, and the channel connects the paint distribution narrow cavity and the hand-held pipe rod;

[0010] A one-way pumping assembly is installed on the inner side of the end of the hand-held pipe rod close to the main roller brush, and the one-way pumping assembly is used to pump the paint in the hand-held pipe rod into the rotating connecting pipe and transport it to the narrow paint distribution cavity through the channel;

[0011] A follower mechanism is installed at one end of the main shaft close to the hand-held pipe rod, and the follower mechanism drives the one-way pump material component to move as the main shaft rotates.

[0012] In the above-mentioned paint coating device for architectural decoration, when the user holds the handheld pipe rod and puts the main roller brush against the wall, the user only needs to push the main roller brush to roll on the wall, so that the main roller brush can drive the follower mechanism to move, and the follower mechanism drives the one-way pumping assembly to move when moving, so that the paint in the paint bucket is pumped into the rotating connecting pipe through the handheld pipe rod and the telescopic flexible pipe, and further transported to the paint distribution narrow cavity through the channel. After passing through the paint distribution narrow cavity, the paint is infiltrated on the surface of the main roller brush, so that the paint is applied to the wall surface, achieving the effect of being able to paint the wall surface without dipping the paint multiple times;

[0013] Compared with the prior art, the building decoration paint coating device avoids the need to provide an additional paint storage barrel at the upper end of the main roller brush, thereby reducing the weight of the end of the building decoration paint coating device, avoiding the influence of the heavy weight of the end of the building decoration paint coating device away from the hand-held portion on the hand-held stability, and avoiding the decrease in the uniformity and effect of coating, thereby ensuring the coating quality while avoiding multiple dips in the paint, and being more conducive to uniformly coating the surface of the building for decoration.

[0014] As a further supplement to the present application, the one-way pump assembly includes a fixing plate and a rubber ring sheet, and the outer diameters of the fixing plate and the rubber ring sheet are the same as the inner diameter of the handheld pipe rod;

[0015] The fixed plate is detachably mounted on the end of the follower mechanism away from the main shaft through a connecting piece, and a plurality of feeding holes distributed along the circumference of the central axis of the one-way pumping assembly are opened on the fixed plate;

[0016] The rubber ring piece is annular and fixedly sleeved on the end of the follower mechanism away from the main shaft, one side of the inner wall of the rubber ring piece is fixed to the side of the fixed plate close to the follower mechanism, and the outer wall of the rubber ring piece is separated from the peripheral side of the fixed plate;

[0017] When the fixed plate and the rubber ring move toward the side away from the main shaft, the rubber ring bends and deforms, and the feeding hole connects the hand-held pipe rod and the rotating connecting pipe. When the fixed plate and the rubber ring move toward the side close to the main shaft, the rubber ring covers the feeding hole and blocks the hand-held pipe rod and the rotating connecting pipe.

[0018] As a further supplement to this application, the follow-up mechanism includes:

[0019] A follower rod, wherein one end of the follower rod away from the fixed plate is provided with a threaded connection portion, and one end of the main shaft is provided with an internal thread groove threadably matched with the threaded connection portion;

[0020] A limiting ring, which is slidably sleeved on the end of the follower rod away from the main shaft, and the limiting ring enables the follower rod to slide along the axis direction of the follower rod;

[0021] The fixing plate is detachably fixed to the end of the follower rod away from the main shaft through a connecting piece, and the rubber ring piece is fixedly sleeved on the end of the follower rod away from the main shaft.

[0022] As a further supplement to the present application, a plurality of limiting sliding grooves are provided on the circumference of the follower rod, and the extension direction of the plurality of limiting sliding grooves is parallel to the axis of the follower rod;

[0023] A plurality of limiting protrusions are integrally formed on the inner side of the limiting ring, and the plurality of limiting protrusions are respectively slidably embedded in the plurality of limiting sliding grooves;

[0024] A plurality of support rods are fixed to the outer wall of the limiting ring, and ends of the plurality of support rods away from the limiting ring are fixed to the inner wall of the hand-held pipe rod.

[0025] As a further supplement to the present application, the connecting member includes a connecting bolt, the screw portion of the connecting bolt movably passes through the fixed plate and is threadedly connected to the end of the follower rod, and the nut portion of the connecting bolt is located on the side of the fixed plate away from the follower rod and is tightly pressed against the side wall of the fixed plate.

[0026] As a further supplement to the present application, a cavity is formed inside the feed tray;

[0027] The channel consists of a second feed hole, a first discharge hole and a second discharge hole. The second feed hole is opened on the inner side wall of the feed tray, and the first discharge hole is opened on the side wall of the feed tray close to the main roller brush. The second feed hole and the first discharge hole are both connected to the cavity of the feed tray.

[0028] The rotating connecting pipe comprises a connecting pipe, one end of which is rotatably connected to the upper end of the hand-held pipe rod, and the other end of which is fixed to an end of the main shaft close to the hand-held pipe rod, and a second discharge hole is opened on the peripheral side wall of the connecting pipe, and the second discharge hole is connected to the second feed hole;

[0029] One end of the main roller brush close to the feed tray is provided with a first feed hole connected with the first discharge hole and the paint distribution narrow cavity.

[0030] As a further supplement to the present application, the rotating connecting tube also includes a rotating connecting head, which is integrally formed with the outer side of one end of the connecting tube close to the hand-held pipe rod, and the rotating connecting head is rotatably sleeved on the outer side of the end of the hand-held pipe rod, forming a seal between the inner side of the rotating connecting head and the outer side of the end of the hand-held pipe rod.

[0031] As a further supplement to the present application, a rotatable connecting sleeve shaft is fixed to the inner side of the lower end of the hand-held pipe rod, and one end of the telescopic flexible tube is rotatably sealed and connected to the inner side of the hand-held pipe rod through the rotatable connecting sleeve shaft.

[0032] As a further supplement to the present application, an auxiliary roller brush is installed below the main roller brush, and the auxiliary roller brush is rotatably connected to the outer side of the handheld pipe rod through a support shaft. The main roller brush and the auxiliary roller brush are covered on the side away from the wall with an arc-shaped drop baffle, the upper end of the drop baffle is located on the upper side of the axis of the main roller brush, and the lower end of the drop baffle is located below the auxiliary roller brush.

[0033] As a further supplement to the present application, a retractable seesaw is formed at one end of the drop baffle plate close to the wall, and the retractable seesaw is an arc-shaped plate with an end portion tilted upward, and the retractable seesaw wraps around the lower end of the auxiliary roller brush and extends to the side of the auxiliary roller brush close to the wall;

[0034] A connecting rod is fixed on one side of the blanking baffle, and one end of the connecting rod away from the blanking baffle is fixed to the outer side of the handheld pipe rod.

[0035] In summary, when the user holds the hand-held pipe rod and puts the main roller brush against the wall, he only needs to push the main roller brush to roll on the wall, so that the main roller brush can drive the follower mechanism to move, and the follower mechanism drives the one-way pumping assembly to move when moving, so that the paint in the paint bucket is pumped into the rotating connecting pipe through the hand-held pipe rod and the telescopic flexible pipe, and further transported to the paint distribution narrow cavity through the channel. After passing through the paint distribution narrow cavity, the paint is infiltrated on the surface of the main roller brush, so that the paint is applied to the wall, achieving the effect of being able to paint the wall without dipping the paint multiple times;

[0036] Compared with the prior art, the architectural decoration paint coating device avoids the need to provide an additional paint storage barrel on the upper end of the main roller brush, thereby reducing the weight of the end of the architectural decoration paint coating device, avoiding the influence of the hand-held stability due to the heavy weight of the end of the architectural decoration paint coating device away from the hand-held portion, and avoiding the decrease in the uniformity and effect of coating, thereby ensuring the coating quality under the premise of avoiding multiple dips in the paint, and being more conducive to uniformly coating the surface of the building for decoration;

[0037] In addition, by setting the drop baffle, the paint residue and ash residue generated on the main roller brush and the auxiliary roller brush during the coating process can be blocked and collected, thereby preventing the paint residue and ash residue from falling directly and causing damage to the user's body, such as eye injuries or skin corrosion by paint, making the coating operation safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present application;

[0039] Figure 2 This is a cross-sectional view of the main roller brush and the end of the handheld pipe rod in the first embodiment of the present application;

[0040] Figure 3 This is a partial enlarged cross-sectional view of the main roller brush and the end of the handheld pipe rod in the first embodiment of the present application;

[0041] Figure 4 This is a schematic diagram of the rotating connecting pipe structure of the first embodiment of the present application;

[0042] Figure 5 This is a schematic structural diagram of a follower mechanism and a one-way pump assembly according to the first embodiment of the present application;

[0043] Figure 6 This is a schematic diagram of the limiting ring structure of the first embodiment of the present application;

[0044] Figure 7 This is a schematic diagram of the blanking baffle structure of the first embodiment of the present application;

[0045] Figure 8 This is a schematic diagram of the connection structure between the lower end of the handheld pipe rod and the end of the telescopic flexible pipe in the first embodiment of the present application;

[0046] Fig. 9 This is a side view of the main roller brush and auxiliary roller brush of the first embodiment of the present application in the wall painting operation.

[0047] Description of the numbers in the figure:

[0048] 1. Hand-held pipe rod; 101. Telescopic flexible pipe; 102. Rotating connecting sleeve shaft; 2. Main roller brush; 201. Main shaft; 202. Paint distribution narrow cavity; 203. First feed hole; 3. Auxiliary roller brush; 4. Feed plate; 401. Second feed hole; 402. First discharge hole; 5. One-way pump assembly; 501. Fixed plate; 5011. Feed hole; 502. Rubber ring; 503. Connecting bolt; 6. Follow-up mechanism; 601. Follow-up rod; 6011. Threaded connection part; 6012. Limiting slide groove; 602. Limiting ring; 6021. Support rod; 6022. Limiting protrusion; 7. Rotating connecting pipe; 701. Connecting pipe; 702. Rotating connecting head; 703. Second discharge hole; 8. Dropping baffle; 801. Retracting rocker; 802. Connecting rod. DETAILED DESCRIPTION

[0049] An implementation method of the present application is described in detail below with reference to the accompanying drawings.

[0050] The first implementation method:

[0051] The present invention provides a coating device for building decoration, see Figure 1-Figure 3 , comprising a hand-held pipe rod 1 with a hollow interior, a telescopic flexible pipe 101 connected to a paint bucket is installed at the lower end of the hand-held pipe rod 1, and a main roller brush 2 is rotatably installed at the upper end of the hand-held pipe rod 1;

[0052] A main shaft 201 is fixed in the middle of the main roller brush 2. A paint distribution narrow cavity 202 extending in a ring shape around the axis of the main roller brush 2 is provided in the main roller brush 2. The cross-sectional area of ​​the paint distribution narrow cavity 202 is less than one sixth of the cross-sectional area of ​​the main roller brush 2.

[0053] The upper end of the hand-held pipe rod 1 is rotatably connected to one end of the main shaft 201 through a rotating connecting pipe 7. A feed tray 4 is sleeved on the outer side of the rotating connecting pipe 7. A channel is provided on the feed tray 4 and the rotating connecting pipe 7. The channel connects the paint distribution narrow cavity 202 and the hand-held pipe rod 1.

[0054] A one-way pumping assembly 5 is installed on the inner side of the end of the hand-held pipe rod 1 close to the main roller brush 2. The one-way pumping assembly 5 is used to pump the paint in the hand-held pipe rod 1 into the rotating connecting pipe 7 and transport it to the paint distribution narrow cavity 202 through the channel;

[0055] A follower mechanism 6 is installed at one end of the main shaft 201 close to the handheld pipe rod 1. The follower mechanism 6 drives the one-way pumping assembly 5 to move as the main shaft 201 rotates.

[0056] Based on the above structure, when the user holds the hand-held pipe rod 1 and puts the main roller brush 2 on the wall, he only needs to push the main roller brush 2 to roll on the wall, so that the main roller brush 2 can drive the follower mechanism 6 to move, and the follower mechanism 6 drives the one-way pumping assembly 5 to move when it moves, so that the paint in the paint bucket is pumped into the rotating connecting pipe 7 through the hand-held pipe rod 1 and the telescopic flexible tube 101, and further transported to the paint distribution narrow cavity 202 through the channel. After passing through the paint distribution narrow cavity 202, the paint is infiltrated on the surface of the main roller brush 2, so that the paint is applied to the wall, achieving the effect of being able to paint the wall by dipping the paint multiple times;

[0057] Compared with the prior art, the architectural decoration paint coating device avoids the need to provide an additional paint storage barrel at the upper end of the main roller brush 2, thereby reducing the weight of the end of the architectural decoration paint coating device (i.e., the main roller brush 2), avoiding the hand-holding stability affected by the heavy weight of the end of the architectural decoration paint coating device away from the hand-held portion, and avoiding the decrease in the uniformity and effect of coating, thereby ensuring the coating quality while avoiding multiple dips in the paint, and being more conducive to evenly coating the surface of the building (including walls, ceilings, etc.) with paint for decoration.

[0058] It should be noted that before coating, the main roller brush 2 needs to be rolled repeatedly to exhaust the air in the handheld pipe rod 1 and the telescopic flexible tube 101, and a portion of the paint is pumped in in advance so that the paint is immersed in the main roller brush 2 before the coating operation can begin.

[0059] Figure 5 The one-way pump assembly 5 is shown to include a fixing plate 501 and a rubber ring 502, and the outer diameters of the fixing plate 501 and the rubber ring 502 are the same as the inner diameter of the handheld pipe rod 1;

[0060] The fixed plate 501 is detachably mounted on the end of the follower mechanism 6 away from the main shaft 201 through a connecting piece, and a plurality of feeding holes 5011 distributed along the circumference of the central axis of the one-way pumping assembly 5 are formed on the fixed plate 501;

[0061] The rubber ring piece 502 is annular and fixedly sleeved on the end of the follower mechanism 6 away from the main shaft 201. One side of the inner wall of the rubber ring piece 502 is fixed to the side of the fixing plate 501 close to the follower mechanism 6, and the outer wall of the rubber ring piece 502 is separated from the peripheral side of the fixing plate 501.

[0062] When the fixed plate 501 and the rubber ring piece 502 move toward the side away from the main shaft 201, the rubber ring piece 502 bends and deforms, and the feeding hole 5011 connects the hand-held pipe rod 1 with the rotating connecting pipe 7, so that the paint in the hand-held pipe rod 1 is pumped into the rotating connecting pipe 7; when the fixed plate 501 and the rubber ring piece 502 move toward the side close to the main shaft 201, the rubber ring piece 502 covers the feeding hole 5011 and blocks the hand-held pipe rod 1 and the rotating connecting pipe 7; at this time, the paint in the rotating connecting pipe 7 is pressurized and moves through the channel into the paint distribution narrow cavity 202, so as to be immersed in the main roller brush 2 through the paint distribution narrow cavity 202, so that the surface of the main roller brush 2 is covered with paint, and the wall is painted, thereby achieving the effect of using the one-way pumping assembly 5 to pump the paint in the hand-held pipe rod 1 onto the main roller brush 2, and can automatically supply paint during the painting process while ensuring that the weight of the end of the main roller brush 2 is light, which is more convenient and quick to use, and the paint is more uniform on the main roller brush 2, thereby achieving a better painting effect.

[0063] Figure 3 , Figure 5-Figure 6 The following mechanism 6 is shown to include:

[0064] A follower rod 601, one end of the follower rod 601 away from the fixed plate 501 is provided with a threaded connection portion 6011, and one end of the main shaft 201 is provided with an internal thread groove threadably matched with the threaded connection portion 6011;

[0065] A limiting ring 602, which is slidably sleeved on one end of the follower rod 601 away from the main shaft 201, and the limiting ring 602 enables the follower rod 601 to slide along the axis direction of the follower rod 601;

[0066] The fixing plate 501 is detachably fixed to the end of the follower rod 601 away from the main shaft 201 through a connecting piece, and the rubber ring piece 502 is fixedly sleeved on the end of the follower rod 601 away from the main shaft 201;

[0067] A plurality of limiting sliding grooves 6012 are provided on the periphery of the follower rod 601, and the extending directions of the plurality of limiting sliding grooves 6012 are parallel to the axis of the follower rod 601;

[0068] A plurality of limiting protrusions 6022 are integrally formed on the inner side of the limiting ring 602, and the plurality of limiting protrusions 6022 are respectively slidably embedded in the plurality of limiting sliding grooves 6012;

[0069] A plurality of support rods 6021 are fixed to the outer wall of the limiting ring 602 , and ends of the plurality of support rods 6021 away from the limiting ring 602 are fixed to the inner wall of the hand-held pipe rod 1 .

[0070] By setting the follower rod 601 and the limiting ring 602, when the main roller brush 2 rotates, it drives the main shaft 201 to rotate synchronously. When the main shaft 201 rotates, the cooperation between the internal thread groove and the threaded connection part 6011, and the sliding cooperation between the limiting protrusion 6022 on the limiting ring 602 and the limiting slide groove 6012 make the follower rod 601 move linearly along the axis, thereby driving the fixed plate 501 and the rubber ring piece 502 to move linearly. As the main roller brush 2 rolls back and forth, the rotation direction of the main shaft 201 changes, thereby driving the fixed plate 501 and the rubber ring piece 502 to perform reciprocating linear motion, thereby achieving the effect of automatically pumping paint into the main roller brush 2 during the wall painting process, which is more convenient and quick to use.

[0071] Figure 3 and Figure 5 The connecting piece is shown to include a connecting bolt 503, the screw portion of the connecting bolt 503 movably passes through the fixed plate 501 and is threadedly connected to the end of the follower rod 601, and the nut portion of the connecting bolt 503 is located on the side of the fixed plate 501 away from the follower rod 601 and is pressed against the side wall of the fixed plate 501, so as to facilitate the disassembly and replacement of the fixed plate 501 and the rubber ring 502 and facilitate subsequent maintenance.

[0072] Figure 3-Figure 4 It is shown that a cavity is formed inside the feed tray 4;

[0073] The channel is composed of a second feed hole 401, a first discharge hole 402 and a second discharge hole 703. The second feed hole 401 is opened on the inner wall of the feed tray 4, and the first discharge hole 402 is opened on the side wall of the feed tray 4 close to the main roller brush 2. The second feed hole 401 and the first discharge hole 402 are both connected to the cavity of the feed tray 4.

[0074] The rotating connecting tube 7 includes a connecting tube 701, one end of which is rotatably connected to the upper end of the hand-held pipe rod 1, and the other end of the connecting tube 701 is fixed to the end of the main shaft 201 close to the hand-held pipe rod 1, and the second discharge hole 703 is opened on the peripheral side wall of the connecting tube 701, and the second discharge hole 703 is connected to the second feed hole 401;

[0075] A first feeding hole 203 connecting the first discharge hole 402 and the paint distribution narrow cavity 202 is formed at one end of the main roller brush 2 close to the feeding plate 4;

[0076] The rotating connecting tube 7 also includes a rotating connecting head 702, which is integrally formed with the outer side of one end of the connecting tube 701 close to the hand-held pipe rod 1, and the rotating connecting head 702 is rotatably sleeved on the outer side of the end of the hand-held pipe rod 1, and a seal is formed between the inner side of the rotating connecting head 702 and the outer side of the end of the hand-held pipe rod 1.

[0077] After the fixed plate 501 and the rubber ring sheet 502 pump the paint from the handheld pipe rod 1 into the rotating connecting pipe 7, the paint enters the cavity of the feed disk 4 through the second discharge hole 703 and the second feed hole 401, and further enters the paint distribution narrow cavity 202 through the first discharge hole 402 and the first feed hole 203, thereby transporting the pumped paint to the paint distribution narrow cavity 202, so that the paint is evenly immersed in the main roller brush 2, achieving a more uniform coating effect.

[0078] Figure 8 It is shown that a rotating connecting sleeve 102 is fixed to the inner side of the lower end of the hand-held pipe rod 1, and one end of the telescopic flexible tube 101 is rotatably sealed and connected to the inner side of the hand-held pipe rod 1 through the rotating connecting sleeve 102, which facilitates the movement of the hand-held pipe rod 1. When the hand-held pipe rod 1 moves, the end of the telescopic flexible tube 101 and the end of the hand-held pipe rod 1 can rotate relative to each other, which is more conducive to using the architectural decoration paint coating device for multi-directional coating operations.

[0079] Figure 1 and Fig. 9 It is shown that a secondary roller brush 3 is installed below the main roller brush 2, and the secondary roller brush 3 is rotatably connected to the outer side of the handheld pipe rod 1 through a support shaft. The main roller brush 2 and the secondary roller brush 3 are covered on the side away from the wall with an arc-shaped drop baffle 8, the upper end of the drop baffle 8 is located on the upper side of the axis of the main roller brush 2, and the lower end of the drop baffle 8 is located below the secondary roller brush 3;

[0080] The auxiliary roller brush 3 can be provided to spread the paint evenly for the second time on the wall surface after being painted by the main roller brush 2, so as to achieve a better painting effect. At the same time, it can also remove the excess paint on the wall surface that has been repeatedly painted, so as to further improve the uniformity of the painting.

[0081] By setting the drop baffle 8, the paint residue and ash residue generated on the main roller brush 2 and the auxiliary roller brush 3 during the coating process can be blocked and collected, thereby preventing the paint residue and ash residue from falling directly and causing damage to the user's body, such as eye injuries or skin corrosion by paint, etc., making the coating operation safer.

[0082] Figure 7 It is shown that a retracted seesaw 801 is formed at one end of the drop baffle 8 close to the wall, and the retracted seesaw 801 is an arc-shaped plate with an end portion tilted upward, and the retracted seesaw 801 wraps around the lower end of the auxiliary roller brush 3 and extends to the side of the auxiliary roller brush 3 close to the wall;

[0083] A connecting rod 802 is fixed to one side of the blanking baffle 8, and one end of the connecting rod 802 away from the blanking baffle 8 is fixed to the outer side of the handheld pipe rod 1;

[0084] By folding the seesaw 801, the paint residue or ash residue dropped during the coating process can be collected together, so that the coating operation can be carried out safely for a longer period of time. When there are a lot of paint residue or ash residue, they can be processed together to facilitate the continuation of the coating operation.

[0085] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A paint coating device for building decoration, comprising a hand-held pipe rod (1) with a hollow interior, a telescopic flexible pipe (101) connected to a paint bucket being installed at the lower end of the hand-held pipe rod (1), and a main roller brush (2) being rotatably installed at the upper end of the hand-held pipe rod (1), characterized in that: A main shaft (201) is fixed in the middle of the main roller brush (2), and a paint distribution narrow cavity (202) is provided in the main roller brush (2) and extends in a circular shape around the axis of the main roller brush (2), wherein the cross-sectional area of ​​the paint distribution narrow cavity (202) is smaller than one sixth of the cross-sectional area of ​​the main roller brush (2); The upper end of the hand-held pipe rod (1) is rotatably connected to one end of the main shaft (201) via a rotatable connecting pipe (7); a feed tray (4) is sleeved on the outer side of the rotatable connecting pipe (7); a channel is provided on the feed tray (4) and the rotatable connecting pipe (7); the channel communicates with the paint distribution narrow cavity (202) and the hand-held pipe rod (1); A one-way pumping assembly (5) is installed on the inner side of the end of the handheld pipe rod (1) close to the main roller brush (2), and the one-way pumping assembly (5) is used to pump the paint in the handheld pipe rod (1) into the rotating connecting pipe (7) and transport it to the paint distribution narrow cavity (202) through the channel; A follower mechanism (6) is installed at one end of the main shaft (201) close to the handheld pipe rod (1), and the follower mechanism (6) drives the one-way pumping assembly (5) to move as the main shaft (201) rotates; The one-way pump assembly (5) comprises a fixing plate (501) and a rubber ring (502), and the outer diameters of the fixing plate (501) and the rubber ring (502) are the same as the inner diameter of the handheld pipe rod (1); The fixed plate (501) is detachably mounted on an end of the follower mechanism (6) away from the main shaft (201) via a connecting piece, and the fixed plate (501) is provided with a plurality of material passing holes (5011) distributed along the circumference of the central axis of the one-way pumping assembly (5); The rubber ring piece (502) is annular and fixedly sleeved on an end of the follower mechanism (6) away from the main shaft (201); one side of the inner wall of the rubber ring piece (502) is fixed to a side of the fixing plate (501) close to the follower mechanism (6); and the outer wall of the rubber ring piece (502) is separated from the peripheral side of the fixing plate (501); When the fixed plate (501) and the rubber ring sheet (502) move toward a side away from the main shaft (201), the rubber ring sheet (502) bends and deforms, and enables the feed hole (5011) to connect the handheld pipe rod (1) and the rotating connecting pipe (7); when the fixed plate (501) and the rubber ring sheet (502) move toward a side close to the main shaft (201), the rubber ring sheet (502) covers the feed hole (5011) and blocks the handheld pipe rod (1) and the rotating connecting pipe (7); The follower mechanism (6) comprises: A follower rod (601), wherein one end of the follower rod (601) away from the fixing plate (501) is provided with a threaded connection portion (6011), and one end of the main shaft (201) is provided with an internal thread groove threadably matched with the threaded connection portion (6011); a limiting ring (602), the limiting ring (602) being slidably sleeved on an end of the follower rod (601) away from the main shaft (201), the limiting ring (602) enabling the follower rod (601) to slide along the axial direction; The fixing plate (501) is detachably fixed to the end of the follower rod (601) away from the main shaft (201) via a connecting piece, and the rubber ring sheet (502) is fixedly sleeved on the end of the follower rod (601) away from the main shaft (201).

2. A paint coating device for architectural decoration according to claim 1, characterized in that: A plurality of limiting sliding grooves (6012) are provided on the circumferential side of the follower rod (601), and the extension direction of the plurality of limiting sliding grooves (6012) is parallel to the axis of the follower rod (601); A plurality of limiting protrusions (6022) are integrally formed on the inner side of the limiting ring (602), and the plurality of limiting protrusions (6022) are respectively slidably embedded in a plurality of limiting sliding grooves (6012); A plurality of support rods (6021) are fixed to the outer wall of the limiting ring (602), and ends of the plurality of support rods (6021) away from the limiting ring (602) are fixed to the inner wall of the handheld pipe rod (1).

3. The architectural decoration paint coating device according to claim 1, characterized in that: The connecting member comprises a connecting bolt (503), the screw portion of the connecting bolt (503) movably passes through the fixing plate (501) and is threadedly connected to the end of the follower rod (601), and the nut portion of the connecting bolt (503) is located on a side of the fixing plate (501) away from the follower rod (601) and is tightly pressed against the side wall of the fixing plate (501).

4. The paint coating device for architectural decoration according to claim 1, characterized in that: A cavity is formed inside the feed tray (4); The channel is composed of a second feed hole (401), a first discharge hole (402) and a second discharge hole (703), wherein the second feed hole (401) is formed on the inner side wall of the feed tray (4), the first discharge hole (402) is formed on the side wall of the feed tray (4) close to the main roller brush (2), and the second feed hole (401) and the first discharge hole (402) are both connected to the cavity of the feed tray (4); The rotatable connecting tube (7) comprises a connecting tube (701), one end of the connecting tube (701) is rotatably connected to the upper end of the hand-held pipe rod (1), the other end of the connecting tube (701) is fixed to an end of the main shaft (201) close to the hand-held pipe rod (1), the second discharge hole (703) is formed on the peripheral side wall of the connecting tube (701), and the second discharge hole (703) is communicated with the second feed hole (401); A first feed hole (203) communicating with the first discharge hole (402) and the paint distribution narrow cavity (202) is formed at one end of the main roller brush (2) close to the feed disk (4).

5. A paint coating device for architectural decoration according to claim 4, characterized in that: The rotatable connecting tube (7) further comprises a rotatable connecting head (702), wherein the rotatable connecting head (702) is integrally formed with the outer side of one end of the connecting tube (701) close to the hand-held pipe rod (1), and the rotatable connecting head (702) is rotatably sleeved on the outer side of the end of the hand-held pipe rod (1), and a seal is formed between the inner side of the rotatable connecting head (702) and the outer side of the end of the hand-held pipe rod (1).

6. The architectural decoration paint coating device according to claim 1, characterized in that: A rotatable connection sleeve shaft (102) is fixed to the inner side of the lower end of the handheld pipe rod (1), and one end of the telescopic flexible tube (101) is rotatably sealedly connected to the inner side of the handheld pipe rod (1) via the rotatable connection sleeve shaft (102).

7. The paint coating device for architectural decoration according to claim 1, characterized in that: An auxiliary roller brush (3) is installed below the main roller brush (2), and the auxiliary roller brush (3) is rotatably connected to the outside of the handheld pipe rod (1) via a support shaft. A curved material drop baffle (8) is provided on the side of the main roller brush (2) and the auxiliary roller brush (3) away from the wall, wherein the upper end of the material drop baffle (8) is located above the axis of the main roller brush (2), and the lower end of the material drop baffle (8) is located below the auxiliary roller brush (3).

8. The architectural decoration paint coating device according to claim 7, characterized in that: A retractable seesaw (801) is formed at one end of the drop baffle plate (8) close to the wall, the retractable seesaw (801) being an arc-shaped plate with an end portion tilted upward, the retractable seesaw (801) wrapping around the lower end of the auxiliary roller brush (3) and extending towards a side of the auxiliary roller brush (3) close to the wall; A connecting rod (802) is fixed to one side of the blanking baffle (8), and one end of the connecting rod (802) away from the blanking baffle (8) is fixed to the outside of the handheld pipe rod (1).

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