A uniform feeding roller

Abstract

The present invention discloses a uniform feeding roller. A feeding adjustment unit is provided at the rear end of the feeding pipe. A number of first overflow through holes penetrating the feeding pipe are opened in the first half section of the feeding pipe; the first half section of the feeding pipe is inserted into the outer cylinder. A positioning base is sleeved on the feeding pipe. An outer cover is rotatably sleeved on the feeding pipe. The outer cover is connected to the second half section of the outer cylinder. A number of second overflow through holes are opened along the length direction of the outer cylinder. A roller cotton is provided on the outer surface of the outer cylinder. A locking cotton is provided between the inner wall of the outer cylinder and the first half section of the feeding pipe; a end cover head is provided at the front end of the outer cylinder. A positioning sleeve is provided on the inner wall of the end cover head. A spacing control spring is provided in the positioning sleeve. The front end of the feeding pipe extends into the positioning sleeve and is rotationally matched with the spacing control spring. The present invention has beneficial effects such as being easy to clean, preventing leakage, avoiding waste of raw materials, uniform discharging, simple structure, easy to operate, low manufacturing cost and not easily damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of decoration tools, and particularly to a uniform feeding roller. Background Art

[0002] Conventional paint rollers are widely used in painting walls, ceilings, etc. During use, every time an operator uses the roller, the roller needs to be dipped in paint, and the above-mentioned dipping action needs to be repeated continuously, resulting in a significant reduction in the labor efficiency of the operator and an increase in the labor intensity of the operator. At the same time, during the process of dipping the paint roller in paint, paint constantly drips onto the ground, not only wasting materials but also causing pollution to the surrounding environment; in order to reduce the labor intensity and improve the efficiency of the operator, technicians have developed a feeding roller that can automatically supply materials. Specifically, the paint roller is connected to a pressure tank filled with paint through a hose, and the paint is transported to the feeding roller by the pressure provided by an air compressor, so as to paint the wall. However, the existing structure still has the following defects:

[0003] 1) It is not easy to disassemble and assemble, so it is not convenient to replace parts and clean parts, which not only reduces the service life but also affects the painting effect of different color paints next time;

[0004] 2) Although the method of automatic feeding improves the efficiency and reduces the labor intensity of the operator, due to continuous feeding use, it does not have an anti-leakage function, resulting in serious material leakage, affecting the construction quality, and causing more serious pollution to the surrounding environment (when cleaning the leaked material after painting, it is not only time-consuming and laborious but also extremely difficult to clean it thoroughly), and more raw materials are wasted;

[0005] 3) During the feeding process, the speed of paint delivery cannot be timely controlled according to actual needs, resulting in poor painting quality and being not conducive to popularization and use in high-quality painting projects;

[0006] 4) During painting, the user will hold the feeding roller horizontally or vertically according to actual painting needs. When using the roller brush vertically or horizontally, affected by the gravity of the paint, the paint will quickly flow to the lower part of the roller, resulting in extremely uneven feeding at the upper and lower ends of the roller surface, greatly affecting the painting effect. At the same time, due to the inability to prevent leakage, when the operator uses the feeding roller vertically, the situation of material leakage will be more serious;

[0007] 5) During painting, the feeding roller rotates at a high speed. Since the paint in the roller cavity cannot rotate synchronously with the outer wall of the roller, a large amount of air will be stirred into the paint, affecting the construction quality.

[0008] Therefore, those skilled in the art are committed to providing a feeding roller that can effectively solve the above technical problems. Summary of the Invention

[0009] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a uniform feeding roller that can effectively solve the above technical problems.

[0010] To achieve the above object, the present invention provides a uniform feeding roller, including a feeding pipe, a feeding adjustment unit is arranged at the rear end of the feeding pipe, and a plurality of first overflow through holes penetrating the feeding pipe are opened in the first half section of the feeding pipe;

[0011] The first half section of the feeding pipe is disposed inside the outer cylinder, a positioning base is sleeved on the feeding pipe, an outer cover is rotatably sleeved on the feeding pipe, the outer cover is connected to the second half section of the outer cylinder, and a first sealing rubber ring is arranged between the outer cover and the outer cylinder;

[0012] A polishing sealing washer is sleeved on the feeding pipe, a second sealing rubber ring is arranged between the inner wall of the polishing sealing washer and the outer wall of the feeding pipe, the rear end face of the polishing sealing washer is rotatably attached to the front end face of the outer cover, the outer cover is located between the positioning base and the polishing sealing washer, and a positioning snap ring sleeved on the feeding pipe is arranged at the front end of the polishing sealing washer;

[0013] A plurality of second overflow through holes are opened along the length direction of the outer cylinder, a roller cotton is arranged on the outer surface of the outer cylinder, and a locking cotton is arranged between the inner wall of the outer cylinder and the first half section of the feeding pipe;

[0014] A end cap head is arranged at the front end of the outer cylinder, a positioning sleeve is arranged on the inner wall of the end cap head, a spacing control spring is arranged inside the positioning sleeve, and the front end of the feeding pipe extends into the positioning sleeve and is rotationally matched with the spacing control spring.

[0015] Preferably, the feeding pipe includes an overflow section, each of the first overflow through holes is arranged along the length direction of the overflow section, and each of the first overflow through holes gradually becomes larger from the rear end to the front end of the overflow section; a limiting groove for installing a positioning snap ring is opened in a circle around the outer wall of the overflow section, the rear end of the overflow section is connected to the front end of the connecting section, the rear end of the connecting section is connected to the front end of the inclined section, the rear end of the inclined section is connected to the front end of the tail section, and the second half section of the tail section is connected to the feeding adjustment unit. The overflow section, the connecting section, the inclined section and the tail section are communicated with each other and integrally formed.

[0016] Preferably, the feeding adjustment unit includes a feeding grip. The feeding grip is provided with a grip material passing pipe therethrough. The front end of the feeding grip is communicated with the feeding pipe, and the rear end of the feeding grip is connected to the output end of the feeding pressure tank through a hose.

[0017] A switch main shaft is rotatably arranged in the feeding grip. A material passing opening is arranged on the switch main shaft. The upper end of the switch main shaft rotatably extends out of the feeding grip and is provided with a switch handle. An anti-slip rubber sleeve is arranged on the outer wall of the feeding grip.

[0018] Preferably, an installation part is arranged on the front half section of the feeding grip. An extension groove is arranged on the inner wall of the lower end of the installation part. The lower half section of the switch main shaft is rotatably located in the extension groove. A sealing rubber sleeve is arranged in the installation part.

[0019] An opening is arranged at the upper end of the installation part. The switch main shaft is rotatably located in the lower half section of the opening. The sealing rubber sleeve is located in the extension groove. The sealing rubber sleeve is provided with a corresponding opening 118a for cooperating with the material passing opening corresponding to the grip material passing pipe.

[0020] The upper end of the sealing rubber sleeve is located at the opening. A fixing nut for limiting the switch main shaft is threadedly connected to the upper half section of the opening. The upper end of the switch main shaft is connected to the lower end of an extension rod. The upper end of the extension rod rotatably passes through the fixing nut and is provided with the switch handle. The switch handle is detachably connected to the extension rod through a locking nut. A third sealing rubber ring for cooperating with the inner wall of the fixing nut is sleeved on the extension rod.

[0021] Preferably, a connecting part is arranged at the front end of the installation part. The connecting part and the installation part are of an integrally formed structure. An external thread is arranged on the outer wall of the connecting part. The inner diameter of the connecting part is larger than the inner diameter of the installation part.

[0022] The rear half section of the tail section is located in the connecting part and extends towards the installation part. A fixing sleeve is sleeved on the tail section. A fixing screw cap for cooperating with the fixing sleeve is sleeved on the tail section. The tail section is threadedly connected to the connecting part through the fixing screw cap. The connecting part is located between the fixing sleeve and the fixing screw cap.

[0023] Preferably, the fixing sleeve includes an integrally formed extension part and a limiting part. The diameter of the limiting part is larger than the diameter of the extension part. The extension part is located between the connecting part and the tail section. The limiting part is located outside the connecting part and the outer diameter thereof is larger than the inner diameter of the connecting part. A fourth sealing rubber ring is arranged between the outer wall of the extension part and the inner wall of the connecting part.

[0024] The outer wall of the extension part is provided with two symmetrically arranged positioning bars, and the inner wall of the connecting part is provided with two first positioning grooves for cooperating with the positioning bars. When the extension part is inserted into the connecting part, the positioning bars are respectively located in the first positioning grooves.

[0025] Preferably, a lengthening rod is arranged at the rear half of the feeding grip, and the inner wall of the lengthening rod is in threaded connection with the outer wall of the feeding grip;

[0026] A material pipe joint assembly is arranged in the lengthening rod. The material pipe joint assembly includes a front half part, an assembly clamping part and a rear half part which are integrally formed. The front half part is located in the feeding grip and is in threaded connection with the feeding grip. One end of the front half part is connected with the rear half part through the assembly clamping part. The outer diameter of the assembly clamping part is larger than the inner diameter of the feeding grip. The feeding end of the hose is connected with the feeding pressure tank, and the discharging end of the hose is sleeved outside the cone of the rear half part and is connected by means of threaded extrusion of a connecting piece.

[0027] Preferably, the upper half section of the connecting piece is in threaded sleeving on the upper half section of the rear half part. A circle of outer clamping grooves is arranged on the outer wall of the lower half section of the rear half part. An inner clamping groove for cooperating with the cone of the rear half part is arranged on the inner wall of the lower port of the connecting piece; A shield support positioning hole is arranged at the outer end of the end cap head. A shield support column is arranged on the inner side of the front end of the anti-paint-splashing protection shield. The shield support column is rotatably inserted into the shield support positioning hole. An elastic clamping part is arranged on the outer side of the rear end of the anti-paint-splashing protection shield. The anti-paint-splashing protection shield is detachably clamped on the feeding pipe through the elastic clamping part.

[0028] Preferably, the front end of the outer cover has a polished sealing surface for cooperating with the rear end of the polished sealing gasket, and the rear end of the outer cover is an arc surface;

[0029] A circle of convex edges for cooperating with the positioning base is arranged at the front edge of the positioning base. The convex edges are attached to the arc surface and are used for limiting the outer cover;

[0030] The first sealing rubber ring is arranged between the front half section of the outer wall of the outer cover and the inner wall of the outer cylinder. A pressing part is arranged on the rear half section of the outer wall of the outer cover. The upper end of the pressing part is attached to the rear end of the outer cylinder; Two guiding slots are arranged at the outer edge of the pressing part along 180°. A circular groove is correspondingly arranged along the guiding slots and the front half section of the outer wall of the outer cover.

[0031] A first anti-friction annular ring integrally formed with the outer cover is arranged on the inner wall of the outer cover. The first anti-friction annular ring is in rotational cooperation with the outer wall of the feeding pipe.

[0032] The inner wall of the positioning sleeve is provided with a plurality of second anti-friction annular rings integrally formed with the positioning sleeve. Two adjacent second anti-friction annular rings are arranged at intervals and are rotationally matched with the outer wall of the feeding pipe; three long strip-shaped overflow ports penetrating through the positioning sleeve are arranged in the first half section of the positioning sleeve.

[0033] Preferably, the outer wall of the positioning sleeve is connected to the inner walls of the three end cover fixing leaf plates. Locking cotton and long strip-shaped overflow ports are arranged between two adjacent end cover fixing leaf plates;

[0034] The front ends of the three end cover fixing leaf plates are all provided with extensions integrally formed with the end cover fixing leaf plates. The outer sides of the extensions are flush with the outer sides of the end cover fixing leaf plates, and each extension is connected to the end cover head;

[0035] Three second positioning grooves for cooperating with the end cover fixing leaf plates are arranged on the inner wall of the first half section of the outer cylinder. Three guiding strips are arranged on the inner wall of the outer cylinder. Each guiding strip corresponds to one of the second positioning grooves, and the sum of the lengths of the guiding strip and the second positioning groove is equal to the length of the outer cylinder;

[0036] The locking cotton is cylindrical. Three limiting ports for inserting the end cover fixing leaf plates are arranged at the front end of the locking cotton. Three guiding grooves for cooperating with the guiding strips are arranged on the outer wall of the locking cotton;

[0037] A top bead for cooperating with the front end of the feeding pipe is arranged on the spacing adjusting spring;

[0038] The locking cotton is detachably located between the first half section of the feeding pipe and the outer cylinder. The outer wall of the locking cotton is attached to the inner wall of the outer cylinder, and the inner wall of the locking cotton is spaced from the outer wall of the first half section of the feeding pipe.

[0039] The beneficial effects of the present invention are as follows: On the one hand, it is convenient to clean and replace each component, avoiding affecting the next use effect and reducing the use cost at the same time; on the other hand, it effectively prevents paint leakage, and the paint can rotate synchronously with the outer wall of the roller, effectively avoiding the problem of paint foaming, and ensuring more uniform feeding on the outer wall of the roller. The anti-leakage design effectively avoids pollution to the surrounding environment and waste of raw materials; this structure is particularly suitable for the processing and application of small-diameter rollers. On the other hand, the feeding speed can be adjusted according to actual needs through the switch handle, effectively improving the painting quality; and whether the operator uses the uniform feeding roller vertically or horizontally, the material can be discharged evenly; at the same time, it also has the beneficial effects of simple structure, easy operation, low manufacturing cost and not easy to be damaged. Description of the Drawings

[0040] Figure 1It is a schematic structural diagram of a specific embodiment of the present invention.

[0041] Figure 2 It is Figure 1 a partially enlarged structural diagram at position A in

[0042] Figure 3 It is Figure 1 a partially enlarged structural diagram at position B in

[0043] Figure 4 a schematic structural diagram of the feed pipe in the present invention.

[0044] Figure 5 It is Figure 4 a partially enlarged structural diagram at position C in

[0045] Figure 6 a schematic structural diagram of components such as the feed adjustment unit.

[0046] Figure 7 It is Figure 6 a partially enlarged structural diagram at position D in

[0047] Figure 8 It is Figure 6 a partially enlarged structural diagram at position E in

[0048] Figure 9 It is Figure 6 a partially enlarged structural diagram at position F in

[0049] Figure 10 a schematic connection structure diagram of components such as the positioning sleeve and the end cover fixing vane.

[0050] Figure 11 a schematic structural diagram of components such as a fixing strip arranged inside the outer cylinder.

[0051] Figure 12 a schematic structural diagram of the locking cotton with a limiting opening and a fixing groove opened thereon.

[0052] Figure 13 a schematic structural diagram of a corresponding opening opened on the sealing rubber sleeve and used in cooperation with the material passing opening.

[0053] Figure 14 a schematic structural diagram of the outer wall of the extension part provided with a positioning strip.

[0054] Figure 15 a schematic structural diagram of the inner wall of the connecting part provided with a first positioning groove used in cooperation with the positioning strip.

[0055] Figure 16 a schematic structural diagram of the end cap head of the present invention provided with a positioning hole.

[0056] Figure 17It is a schematic structural diagram of a splash-proof paint protection cover. Specific implementation mode

[0057] The present invention will be further described below in conjunction with the drawings and embodiments:

[0058] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0059] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "setting", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0060] As Figures 1 to 17 shown, a uniform feeding roller includes a feeding pipe 2. A feeding adjustment unit 10 is provided at the rear end of the feeding pipe 2. A plurality of first overflow through holes 11 penetrating through the feeding pipe 2 are opened in the first half section of the feeding pipe 2;

[0061] The first half section of the feeding pipe 2 is inserted into an outer cylinder 5. A positioning base 20 is sleeved on the feeding pipe 2. In the present invention, preferably, the positioning base 20 and the feeding pipe 2 are of an integrally formed structure. An outer cover 1 is rotatably sleeved on the feeding pipe 2. The outer cover 1 is connected to the rear half section of the outer cylinder 5. A first sealing rubber ring 6 is provided between the outer cover 1 and the outer cylinder 5. In the present invention, for the convenience of disassembly and assembly, the outer cover 1 and the outer cylinder 5 are detachably connected by a tight fit.

[0062] A polishing seal washer 4 is sleeved on the feeding pipe 2. In the present invention, the second sealing rubber ring 3 is connected to the polishing seal washer 4. A second sealing rubber ring 3 is arranged between the inner wall of the polishing seal washer 4 and the outer wall of the feeding pipe 2. The rear end face of the polishing seal washer 4 is rotatably attached to the front end face of the outer cover 1. The outer cover 1 is located between the positioning base 20 and the polishing seal washer 4. A positioning snap ring 8 sleeved on the feeding pipe 2 is arranged at the front end of the polishing seal washer 4. The arrangement of the positioning snap ring 8 can effectively limit the polishing seal washer 4.

[0063] A plurality of second overflow through holes 16 are arranged along the length direction of the outer cylinder 5. A roller cotton 17 is arranged on the outer surface of the outer cylinder 5. A locking cotton 18 is arranged between the inner wall of the outer cylinder 5 and the front half section of the feeding pipe 2.

[0064] The main function of the locking cotton 18 is to prevent the paint between the feeding pipe 2 and the outer cylinder 5 from quickly accumulating together due to the gravity effect when the operator uses the uniform feeding roller, resulting in uneven material discharge and affecting the painting quality. Preferably, the locking cotton 18 in the present invention is made of foamed polyester cotton (flocked roller, foamed polyester flocked roller). Of course, the locking cotton 18 is not limited to the above materials, and any existing material that can solve the problem of rapid accumulation of paint together can be used.

[0065] A end cap head 19 is arranged at the front end of the outer cylinder 5. A positioning sleeve 70 is arranged on the inner wall of the end cap head 19. A spacing regulating spring 21 is arranged in the positioning sleeve 70. The front end of the feeding pipe 2 extends into the positioning sleeve 70 and is rotationally matched with the spacing regulating spring 21. The front end of the feeding pipe 2 is a polished surface and is rotationally matched with the spacing regulating spring 21. Especially during use, due to the presence of paint, the rotational matching between the front end of the feeding pipe 2 and the spacing regulating spring 21 is smoother.

[0066] The feeding pipe 2 includes an overflow section 101. Each of the first overflow through holes 11 is arranged along the length direction of the overflow section 101, and each of the first overflow through holes 11 gradually becomes larger from the rear end to the front end of the overflow section 101. By arranging the first overflow through holes 11 to gradually become larger, when the paint just enters the overflow section 101, since the opening of the first overflow through hole 11 near the feeding end of the overflow section 101 is smaller, it effectively avoids the paint quickly overflowing through the first overflow through hole 11, resulting in insufficient feeding in the second half section of the overflow section 101 and uneven material discharge affecting the painting effect.

[0067] A limiting groove 102 for installing and positioning a snap spring 8 is provided around the outer wall of the overflow section 101. The rear end of the overflow section 101 is connected to the front end of the connecting section 103. In the present invention, the positioning base 20 and the polishing sealing gasket 4 are both sleeved on the connecting section 103.

[0068] The rear end of the connecting section 103 is connected to the front end of the inclined section 105. The rear end of the inclined section 105 is connected to the front end of the tail section 106. The rear half of the tail section 106 is connected to the feeding and adjusting unit 10. The overflow section 101, the connecting section 103, the inclined section 105 and the tail section 106 are interconnected and integrally formed. In the present invention, the number of the first overflow through holes 11 is 7, six of which are arranged along the length direction of the overflow section 101. Preferably, the other one is opened at the front end of the overflow section 101.

[0069] In the present invention, the specific numbers of the first overflow through holes 11 and the second overflow through holes 16 are not limited, and the first overflow through holes 11 and the second overflow through holes 16 can be increased or decreased accordingly according to actual needs.

[0070] The feeding and adjusting unit 10 includes a feeding grip 107. A grip feed pipe 107b is provided through the feeding grip 107. The front end of the feeding grip 107 is connected to the feeding pipe 2. The rear end of the feeding grip 107 is connected to the output end of a feeding pressure tank through a hose 108. The feeding pressure tank (not shown in the figure) is a prior art structure. The feeding pressure tank feeds the hose 108, so as to send the coating into the feed pipe 107b. Meanwhile, the feeding structure is not limited to the feeding pressure tank, and any structure in the prior art that can feed the hose 108 can be used.

[0071] A switch main shaft 109 is rotatably arranged in the feeding grip 107. A feed opening 113 is arranged on the switch main shaft 109. The upper end of the switch main shaft 109 rotatably extends out of the feeding grip 107 and is provided with a switch handle 115. An anti-slip rubber sleeve 136 is arranged on the outer wall of the feeding grip 107.

[0072] An installation part 116 is arranged in the front half of the feeding grip 107. An extension groove 117 is arranged on the inner wall of the lower end of the installation part 116. The lower half of the switch main shaft 109 is rotatably located in the extension groove 117. A sealing rubber sleeve 118 is arranged in the installation part 116.

[0073] An opening 121 is arranged at the upper end of the installation part 116. The switch main shaft 109 is rotatably located in the lower half of the opening 121. The sealing rubber sleeve 118 is located in the extension groove 117. The sealing rubber sleeve 118 is provided with a corresponding opening 118a corresponding to the grip feed pipe 107b and cooperating with the feed opening 113.

[0074] The upper end of the seal rubber sleeve 118 is located at the opening 121. The upper half of the opening 121 is threadedly connected with a fixing nut 123 for limiting the switch main shaft 109. The upper end of the switch main shaft 109 is connected to the lower end of the extension rod 126. The upper end of the extension rod 126 rotatably passes through the fixing nut 123 and is provided with the switch handle 115. The switch handle 115 is detachably connected to the extension rod 126 through a locking nut 127. A third seal rubber ring 128 that cooperates with the inner wall of the fixing nut 123 is sleeved on the extension rod 126. The above structure can not only effectively prevent paint leakage, but also has a compact structure, a small volume and is not easily damaged.

[0075] A connecting portion 129 is provided at the front end of the mounting portion 116. The connecting portion 129 and the mounting portion 116 are of an integrally formed structure. An external thread is provided on the outer wall of the connecting portion 129. The inner diameter of the connecting portion 129 is larger than the inner diameter of the mounting portion 116.

[0076] The latter half of the tail section 106 is located within the connecting portion 129 and extends towards the mounting portion 116. A fixing sleeve 130 is sleeved on the tail section 106. A fixing screw cap 131 that cooperates with the fixing sleeve 130 is sleeved on the tail section 106. The tail section 106 is threadedly connected to the connecting portion 129 through the fixing screw cap 131. The connecting portion 129 is located between the fixing sleeve 130 and the fixing screw cap 131.

[0077] The above structure facilitates disassembly and assembly. When disassembly, cleaning, carrying or maintenance is required, only the fixing screw cap 131 needs to be rotated so that the fixing screw cap 131 is no longer connected to the connecting portion 129, and the tail section 106 can be separated from the connecting portion 129.

[0078] The fixing sleeve 130 includes an integrally formed extension portion 132 and a limiting portion 133. The diameter of the limiting portion 133 is larger than the diameter of the extension portion 132. The extension portion 132 is located between the connecting portion 129 and the tail section 106. The limiting portion 133 is located outside the connecting portion 129 and the outer diameter is larger than the inner diameter of the connecting portion 129. A fourth seal rubber ring 135 is provided between the outer wall of the extension portion 132 and the inner wall of the connecting portion 129. The above structure further improves the sealing performance.

[0079] The outer wall of the extension part 132 is provided with two symmetrically arranged positioning bars 132a. The inner wall of the connecting part 129 is provided with two first positioning grooves 129a that cooperate with the positioning bars 132a. When the extension part 132 is inserted into the connecting part 129, the positioning bars 132a are respectively located in the first positioning grooves 129a. Through the above structure, when the extension part 132 is inserted into the connecting part 129, the extension part 132 is effectively prevented from rotating relative to the connecting part 129. In the present invention, the number of the first positioning grooves 129a and the positioning bars 132a is two. In actual use, the number of the first positioning grooves 129a and the positioning bars 132a can also be increased or decreased according to actual needs.

[0080] A lengthening rod 137 is arranged at the rear half section of the feeding grip 107. The inner wall of the lengthening rod 137 is threadedly connected to the outer wall of the feeding grip 107. By providing the lengthening rod, it can be applicable to painting at different heights, with higher practicability. The lengthening rod 137 can be one, and its length can be selected according to actual needs. For the convenience of carrying, the strengthening rod 137 can also be divided into multiple parts, so as to shorten the length of a single strengthening rod 137. Adjacent two strengthening rods 137 are threadedly connected and can be added or reduced according to actual needs.

[0081] A material pipe joint assembly 138 is arranged inside the lengthening rod 137. The material pipe joint assembly 138 includes an integrally formed front half part 138a, an assembly clamping position part 138b, and a rear half part 138c. The front half part 138a is located inside the feeding grip 107 and is threadedly connected to the feeding grip 107. One end of the front half part 138a is connected to the rear half part 138c through the assembly clamping position part 138b. The outer diameter of the assembly clamping position part 138b is greater than the inner diameter of the feeding grip 107. The feeding end of the hose 108 is connected to the feeding pressure tank. The discharging end of the hose 108 is sleeved outside the cone of the rear half part 138c and is threadedly squeezed and connected through a connecting piece 139. The above structure facilitates the disassembly and assembly of the hose 108.

[0082] The upper half section of the connecting piece 139 is threadedly sleeved on the upper half section of the rear half part 138c. A circle of outer clamping grooves 150 is arranged on the outer wall of the lower half section of the rear half part 138c. An inner clamping groove 151 that cooperates with the cone of the rear half part 138c is arranged on the inner wall of the lower port of the connecting piece 139. A shield support positioning hole 19a is opened at the outer end of the end cap head 19. A shield support column 91 is arranged on the inner side of the front end of the anti-paint splashing protection shield 90. The shield support column 91 is rotatably inserted into the shield support positioning hole 19a. An elastic clamping part 92 is arranged on the outer side of the rear end of the anti-paint splashing protection shield 90. The anti-paint splashing protection shield 90 is detachably clamped on the feeding pipe 2 through the elastic clamping part 92.

[0083] During use, by setting the anti-paint-splashing protection cover 90, it can effectively prevent paint from splashing everywhere due to the rapid rotation of the roller during painting.

[0084] The front end of the outer cover 1 has a polished sealing surface 1a that cooperates with the rear end of the polished sealing gasket 4, and the rear end of the outer cover 1 is an arc surface 1b;

[0085] A circle of convex ribs 20a that cooperate with the positioning base 20 is provided at the front edge of the positioning base 20. The convex ribs 20a are attached to the arc surface 1b and are used to limit the outer cover 1;

[0086] The first sealing rubber ring 6 is arranged between the front half of the outer wall of the outer cover 1 and the inner wall of the outer cylinder 5. A tightening portion 1f is provided on the rear half of the outer wall of the outer cover 1, and the upper end of the tightening portion 1f is attached to the rear end of the outer cylinder 5; two guiding slots 1c are arranged along 180° on the outer edge of the tightening portion 1f, and a circular groove 1d is correspondingly opened along the guiding slots 1c and the front half of the outer wall of the outer cover 1;

[0087] A first anti-friction annular ring 1e integrally formed with the outer cover 1 is provided on the inner wall of the outer cover 1, and the first anti-friction annular ring 1e is rotationally matched with the outer wall of the feed pipe 2;

[0088] A number of second anti-friction annular rings 70a integrally formed with the positioning sleeve 70 are provided on the inner wall of the positioning sleeve 70. Two adjacent second anti-friction annular rings 70a are arranged at intervals and are rotationally matched with the outer wall of the feed pipe 2; three long strip-shaped overflow ports 70b penetrating through the positioning sleeve 70 are opened in the front half of the positioning sleeve 70. By setting three long strip-shaped overflow ports 70b, it not only prevents paint from clogging in the positioning sleeve 70, but also avoids the situation where the roller cotton 17 in this section of the positioning sleeve 70 cannot adsorb paint due to the inability of the positioning sleeve 70 to overflow, resulting in uneven paint.

[0089] The outer wall of the positioning sleeve 70 is connected to the inner walls of three end cover fixing leaf plates 200, and locking cotton 18 and long strip-shaped overflow ports 70b are arranged between two adjacent end cover fixing leaf plates 200;

[0090] The front ends of the three end cover fixing leaf plates 200 are all provided with extension parts 200a integrally formed with the end cover fixing leaf plates 200. The outer sides of the extension parts 200a are flush with the outer sides of the end cover fixing leaf plates 200, and the extension parts 200a are connected to the end cover head 19;

[0091] In the first half of the inner wall of the outer cylinder 5, three second positioning grooves 210 are provided for cooperating with each end cover fixing vane 200. Three guiding strips 500 are arranged on the inner wall of the outer cylinder 5. Each guiding strip 500 corresponds to one of the second positioning grooves 210. The sum of the length of the guiding strip 500 and the second positioning groove 210 is equal to the length of the outer cylinder 5;

[0092] The material locking cotton 18 is cylindrical. At the front end of the material locking cotton 18, three limiting openings 501 are provided for inserting each end cover fixing vane 200. Three guiding grooves 502 for cooperating with each guiding strip 500 are arranged on the outer wall of the material locking cotton 18;

[0093] On the spacing regulating spring 21, a top bead 211 for cooperating with the front end of the feeding pipe 2 is arranged; the material locking cotton 18 is detachably located between the first half of the feeding pipe 2 and the outer cylinder 5. The outer wall of the material locking cotton 18 is attached to the inner wall of the outer cylinder 5, and the inner wall of the material locking cotton 18 is spaced from the outer wall of the first half of the feeding pipe 2. By arranging the material locking cotton 18, the material discharge is made more uniform, effectively improving the painting effect. At the same time, the material locking cotton 18 is detachably arranged between the outer cylinder 5 and the first half of the feeding pipe 2, facilitating the cleaning or replacement of the material locking cotton 18.

[0094] During actual use, when the paint enters the feeding adjustment unit 10, the switch handle 115 can be rotated to drive the switch main shaft 109 to rotate, thereby controlling the rotation of the material passing opening 113. Whether to convey the paint into the feeding pipe 2 is controlled by controlling the rotation direction of the material passing opening 113. When it is necessary to convey the paint, the switch handle 115 rotates the switch main shaft 109, and the paint flows through the material passing opening 113 to the feeding pipe 2. When the paint enters the overflow section 101 of the feeding pipe 2, the paint overflows through the first overflow through hole 11 provided on the overflow section 101. After the overflowed paint passes through the material locking cotton 18, it flows out through the second overflow through hole 16 on the outer cylinder 5 and adheres to the roller cotton 17 for painting use.

[0095] The setting of the spacing regulating spring 21 can make the outer cover 1 automatically adapt to the tightness of the polishing sealing gasket 4, ensuring that the outer cover 1 and the polishing sealing gasket 4 rotate and fit while preventing material leakage. The specific method is that the spacing regulating spring 21 applies pressure to the overflow section 101 towards the outer cover 1, so as to ensure that the front end of the outer cover 1 is closely attached to the rear end of the polishing sealing gasket 4, thereby preventing the paint from leaking between the outer cover 1 and the polishing sealing gasket 4 during use.

[0096] For the convenience of maintenance, replacement and cleaning, in the present invention, preferably, the outer cover 1 and the outer cylinder 5 are detachably connected by a tight fit. When it is necessary to take out the locking cotton 18 for cleaning, hold the roller cotton 17 and the feeding pipe 2 by hand respectively and pull them in opposite directions, so as to separate the outer cover 1 and the outer cylinder 5. After the separation is completed, the polishing sealing gasket 4, the outer cover 1 and the positioning snap ring 8 are all sleeved on the feeding pipe 2. Pull the feeding pipe 2 to pull the overflow section 101 on the feeding pipe 2 out of the outer cylinder 5, and then take out the locking cotton 18 for cleaning, which effectively improves the cleaning efficiency and quality, especially the roller coating maintenance of colored coatings, and avoids affecting the next use due to unclean cleaning. The main application scenario of the present invention is a new wall surface. After adjusting the discharging speed to an appropriate value by turning the switch handle 115, there is no need to adjust the discharging speed through the switch handle 115 during the process of large-area brushing.

[0097] At the same time, because the application scenario of the present invention is the construction on a new putty bottom wall surface or a slightly water-absorbing surface, even when a roller with a smaller diameter is used in the present invention, it will not slip when brushing the wall surface. And due to the smaller diameter of the roller, the overall weight of the roller is lighter, which is beneficial to setting a medium-long roller cotton and can moderately extend the length of the roller, and is especially suitable for continuous construction of large-scale work clothes, that is, it is labor-saving and has higher construction efficiency.

[0098] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A uniform feeding roller, characterized in that: Including a feeding pipe (2), a feeding adjustment unit (10) is provided at the rear end of the feeding pipe (2), and a plurality of first overflow through holes (11) penetrating the feeding pipe (2) are provided in the first half section of the feeding pipe (2); The first half section of the feeding pipe (2) is inserted into the outer cylinder (5), a positioning base (20) is sleeved on the feeding pipe (2), an outer cover (1) is rotatably sleeved on the feeding pipe (2), the outer cover (1) is connected to the second half section of the outer cylinder (5), and a first sealing rubber ring (6) is provided between the outer cover (1) and the outer cylinder (5); A polishing sealing gasket (4) is sleeved on the feeding pipe (2), a second sealing rubber ring (3) is provided between the inner wall of the polishing sealing gasket (4) and the outer wall of the feeding pipe (2), the rear end face of the polishing sealing gasket (4) is rotatably attached to the front end face of the outer cover (1), the outer cover (1) is located between the positioning base (20) and the polishing sealing gasket (4), and a positioning snap ring (8) sleeved on the feeding pipe (2) is provided at the front end of the polishing sealing gasket (4); A plurality of second overflow through holes (16) are provided along the length direction of the outer cylinder (5), a roller cotton (17) is provided on the outer surface of the outer cylinder (5), and a locking cotton (18) is provided between the inner wall of the outer cylinder (5) and the first half section of the feeding pipe (2); A end cover head (19) is provided at the front end of the outer cylinder (5), a positioning sleeve (70) is provided on the inner wall of the end cover head (19), a spacing adjustment spring (21) is provided in the positioning sleeve (70), the front end of the feeding pipe (2) extends into the positioning sleeve (70) and is rotationally matched with the spacing adjustment spring (21); the feeding pipe (2) includes an overflow section (101), each of the first overflow through holes (11) is arranged along the length direction of the overflow section (101), and each of the first overflow through holes (11) gradually becomes larger from the rear end to the front end of the overflow section (101); a limiting groove (102) for installing the positioning snap ring (8) is provided in a circle around the outer wall of the overflow section (101), the rear end of the overflow section (101) is connected to the front end of the connecting section (103), the rear end of the connecting section (103) is connected to the front end of the inclined section (105), the rear end of the inclined section (105) is connected to the front end of the tail section (106), the second half section of the tail section (106) is connected to the feeding adjustment unit (10), and the overflow section (101), the connecting section (103), the inclined section (105) and the tail section (106) are communicated with each other and integrally formed.

2. The uniform feeding roller according to claim 1, characterized in that: The feeding adjustment unit (10) includes a feeding grip (107), a grip through-feed pipe (107b) is provided through the feeding grip (107), the front end of the feeding grip (107) is communicated with the feeding pipe (2), and the rear end of the feeding grip (107) is connected to the output end of a feeding pressure tank through a hose (108); A switch main shaft (109) is rotatably arranged inside the feeding grip (107), and a material passing opening (113) is arranged on the switch main shaft (109); the upper end of the switch main shaft (109) rotatably extends out of the feeding grip (107) and is provided with a switch handle (115); an anti-slip rubber sleeve (136) is arranged on the outer wall of the feeding grip (107).

3. The uniform feeding roller according to claim 2, characterized in that: An installation part (116) is arranged on the front half section of the feeding grip (107), an extension groove (117) is arranged on the inner wall of the lower end of the installation part (116), the lower half section of the switch main shaft (109) is rotatably located in the extension groove (117), and a sealing rubber sleeve (118) is arranged in the installation part (116); An opening (121) is arranged at the upper end of the installation part (116), the switch main shaft (109) is rotatably located in the lower half section of the opening (121), the sealing rubber sleeve (118) is located in the extension groove (117), and the sealing rubber sleeve (118) is provided with a corresponding opening (118a) corresponding to the grip material passing pipe (107b) and cooperating with the material passing opening (113); The upper end of the sealing rubber sleeve (118) is located at the opening (121), a fixing nut (123) for limiting the switch main shaft (109) is threadedly connected to the upper half section of the opening (121), the upper end of the switch main shaft (109) is connected to the lower end of an extension rod (126), the upper end of the extension rod (126) rotatably passes through the fixing nut (123) and is provided with the switch handle (115), and the switch handle (115) is detachably connected to the extension rod (126) through a locking nut (127); a third sealing rubber ring (128) cooperating with the inner wall of the fixing nut (123) is sleeved on the extension rod (126).

4. The uniform feeding roller according to claim 3, wherein: A connecting part (129) is arranged at the front end of the installation part (116), the connecting part (129) and the installation part (116) are of an integrally formed structure, an external thread is arranged on the outer wall of the connecting part (129), and the inner diameter of the connecting part (129) is larger than the inner diameter of the installation part (116); The rear half section of the tail section (106) is located in the connecting part (129) and extends towards the installation part (116), a fixing sleeve (130) is sleeved on the tail section (106), a fixing screw cap (131) cooperating with the fixing sleeve (130) is sleeved on the tail section (106), and the tail section (106) is threadedly connected to the connecting part (129) through the fixing screw cap (131); the connecting part (129) is located between the fixing sleeve (130) and the fixing screw cap (131).

5. The uniform feeding roller according to claim 4, characterized in that: The fixed sleeve (130) includes an integrally formed extension part (132) and a limiting part (133). The diameter of the limiting part (133) is larger than that of the extension part (132). The extension part (132) is located between the connecting part (129) and the tail section (106). The limiting part (133) is located outside the connecting part (129) and its outer diameter is larger than the inner diameter of the connecting part (129). A fourth sealing rubber ring (135) is arranged between the outer wall of the extension part (132) and the inner wall of the connecting part (129). The outer wall of the extension part (132) has two symmetrically arranged positioning strips (132a). The inner wall of the connecting part (129) is provided with two first positioning grooves (129a) that cooperate with the positioning strips (132a). When the extension part (132) is inserted into the connecting part (129), the positioning strips (132a) are respectively located in the first positioning grooves (129a).

6. The uniform feeding roller according to claim 5, characterized in that: A lengthening rod (137) is arranged in the second half section of the feeding grip (107). The inner wall of the lengthening rod (137) is threadedly connected to the outer wall of the feeding grip (107). A material pipe joint assembly (138) is arranged in the lengthening rod (137). The material pipe joint assembly (138) includes an integrally formed front half part (138a), an assembly clamping position part (138b) and a rear half part (138c). The front half part (138a) is located in the feeding grip (107) and is threadedly connected to the feeding grip (107). One end of the front half part (138a) is connected to the rear half part (138c) through the assembly clamping position part (138b). The outer diameter of the assembly clamping position part (138b) is larger than the inner diameter of the feeding grip (107). The feeding end of the hose (108) is connected to the feeding pressure tank. The discharging end of the hose (108) is sleeved outside the cone of the rear half part (138c) and is threadedly squeezed and connected through a connecting piece (139).

7. The uniform feeding roller according to claim 6, characterized in that: The upper half section of the connecting piece (139) is threadedly sleeved on the upper half section of the rear half part (138c). A circle of outer clamping grooves (150) is arranged on the outer wall of the lower half section of the rear half part (138c). An inner clamping groove (151) that cooperates with the cone of the rear half part (138c) is arranged on the inner wall of the lower port of the connecting piece (139). A shield support positioning hole (19a) is opened at the outer end of the end cover head (19). A shield support column (91) is arranged on the inner side of the front end of the anti-paint splashing protection shield (90). The shield support column (91) is rotatably inserted into the shield support positioning hole (19a). An elastic clamping part (92) is arranged on the outer side of the rear end of the anti-paint splashing protection shield (90). The anti-paint splashing protection shield (90) is detachably clamped on the feeding pipe (2) through the elastic clamping part (92).

8. The uniform feeding roller according to claim 7, wherein: The front end of the outer cover (1) has a polishing sealing surface (1a) that cooperates with the rear end of the polishing sealing gasket (4). The rear end of the outer cover (1) is an arc surface (1b). A convex rib (20a) that cooperates with the positioning base (20) is provided at the front edge of the positioning base (20). The convex rib (20a) is in contact with the arc surface (1b) and is used to limit the outer cover (1). The first sealing rubber ring (6) is arranged between the front half of the outer wall of the outer cover (1) and the inner wall of the outer cylinder (5). A pressing portion (1f) is provided on the rear half of the outer wall of the outer cover (1), and the upper end of the pressing portion (1f) is in contact with the rear end of the outer cylinder (5). Two guiding slots (1c) are arranged along the outer edge of the pressing portion (1f) by 180°. A circular groove (1d) is correspondingly opened along the guiding slot (1c) and the front half of the outer wall of the outer cover (1). A first anti-friction annular ring (1e) integrally formed with the outer cover (1) is provided on the inner wall of the outer cover (1), and the first anti-friction annular ring (1e) is in rotational cooperation with the outer wall of the feeding pipe (2). A plurality of second anti-friction annular rings (70a) integrally formed with the positioning sleeve (70) are provided on the inner wall of the positioning sleeve (70). Two adjacent second anti-friction annular rings (70a) are arranged at intervals and are in rotational cooperation with the outer wall of the feeding pipe (2). Three long strip-shaped overflow ports (70b) penetrating through the positioning sleeve (70) are opened in the front half of the positioning sleeve (70).

9. The uniform feeding roller according to claim 8, wherein: The outer wall of the positioning sleeve (70) is connected to the inner walls of three end cover fixing leaf plates (200). A locking cotton (18) and a long strip-shaped overflow port (70b) are arranged between two adjacent end cover fixing leaf plates (200). The front ends of the three end cover fixing leaf plates (200) are provided with extension parts (200a) integrally formed with the end cover fixing leaf plates (200). The outer sides of the extension parts (200a) are flush with the outer sides of the end cover fixing leaf plates (200), and the extension parts (200a) are connected to the end cover head (19). Three second positioning grooves (210) that cooperate with the end cover fixing leaf plates (200) are opened in the inner wall of the front half of the outer cylinder (5). Three guiding strips (500) are arranged on the inner wall of the outer cylinder (5). The guiding strips (500) and the second positioning grooves (210) are arranged in one-to-one correspondence, and the sum of the lengths of the guiding strip (500) and the second positioning groove (210) is equal to the length of the outer cylinder (5). The locking cotton (18) is in a cylindrical shape. Three limiting ports (501) for inserting the end cover fixing leaf plates (200) are opened at the front end of the locking cotton (18). Three guiding grooves (502) that cooperate with the guiding strips (500) are opened on the outer wall of the locking cotton (18). A top bead (211) that cooperates with the front end of the feeding pipe (2) is arranged on the spacing adjusting spring (21). The material locking cotton (18) is detachably located between the first half of the feeding pipe (2) and the outer cylinder (5). The outer wall of the material locking cotton (18) is in contact with the inner wall of the outer cylinder (5), and the inner wall of the material locking cotton (18) is spaced from the outer wall of the first half of the feeding pipe (2).

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