Inner coating device for large-diameter grooved pipe fitting

Abstract

The utility model discloses an internal coating device for a large-diameter grooved pipe fitting, which comprises a stand, a positioning device is rotatably mounted on the stand, the positioning device comprises a turntable, a positioning block is slidably mounted on the turntable, and the positioning block comprises a V-shaped bearing groove arranged at the upper end; a coating frame body is slidably arranged on one side of the stand, and a spraying pipe is horizontally arranged on the side, close to the stand, of the coating frame body. According to the special-shaped grooved pipe fitting coating device, special-shaped grooved pipe fittings of different types and different specifications and sizes can be clamped, so that the interiors of various special-shaped grooved pipe fittings can be coated, and the interiors of the grooved pipe fittings can be completely coated by one-time clamping.

Description

Technical Field

[0001] The utility model relates to a large-caliber groove pipe internal coating device, belonging to the technical field of groove pipe internal coating. Background Art

[0002] Grooved pipe fittings are a type of pipe connector. They have good sealing properties and can enhance their own sealing properties as the pressure of the fluid in the pipe increases. At the same time, they make the complex pipe connection process simple and quick, and greatly improve the installation and connection efficiency of the pipe. They have gradually replaced traditional flange or welding connections for pipes and become the main way to connect liquid and gas pipes. Among them, in order to protect the inner wall of the grooved pipe fittings from being contaminated or corroded by liquid or gas during use, it is necessary to spray the inner wall with anti-rust treatment. However, due to the use requirements of the grooved pipe fittings, it is not a single straight pipe structure, but an elbow structure with various angles in different occasions, which makes it difficult and inefficient to spray the inner wall.

[0003] A Chinese patent with patent publication number CN115608550A discloses a large-diameter groove pipe internal plastic coating device, which can automatically complete the cleaning of dust on the inner wall of the pipe, the collection of the cleaned dust, the spraying of paint on the inner wall of the pipe and the rapid air drying of the paint after spraying through a single lifting movement of the pipe. The operation is simple and convenient, and the work efficiency is high.

[0004] However, the above patent also has the following defects in actual use:

[0005] First, grooved pipe fittings are generally special-shaped parts, including elbows, tees, crosses, etc. The above patent cannot coat special-shaped grooved pipe fittings.

[0006] Second, it is impossible to clamp special-shaped grooved pipe fittings, let alone special-shaped grooved pipe fittings of different sizes, thereby failing to meet coating requirements.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] In view of the deficiencies in the background technology, the utility model provides a large-diameter groove pipe internal coating device, which can clamp special-shaped groove pipes of different types and sizes, so that the interior of various special-shaped groove pipes can be coated, and the entire coating of the interior of the grooved pipe can be completed by clamping once.

[0009] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0010] A coating device for a large-diameter grooved pipe, comprising a stand, on which a positioning device is rotatably mounted, the positioning device comprising a turntable, on which a positioning block is slidably mounted, the positioning block comprising a V-shaped bearing groove arranged at the upper end;

[0011] A coating frame is slidably provided on one side of the frame, and a spray pipe is horizontally provided on one side of the coating frame close to the frame.

[0012] Furthermore, the turntable is provided with four sliding grooves evenly distributed at its center, a screw is provided at the lower end of the V-shaped bearing groove, and a nut is matched on the screw to fix the positioning block on the turntable.

[0013] Furthermore, a square positioning block is provided at the lower end of the V-shaped bearing groove, a screw is provided on the square positioning block, and the square positioning block is slidably arranged in the sliding groove.

[0014] Furthermore, a rotating shaft is fixed at the bottom of the turntable, and the rotating shaft is rotatably mounted on a stand, and a driving device is provided at the bottom of the stand.

[0015] Furthermore, a mounting frame is provided on the platform, a cylinder is installed on the mounting frame, a pressing plate is provided at the lower end of the cylinder, and the pressing plate is rotatably mounted on the telescopic rod of the cylinder.

[0016] Furthermore, a nozzle is provided at the front end of the spray pipe, and a circle of multiple flow channel holes arranged with the nozzle axis as the center is provided in the nozzle, and the multiple flow channel holes are arranged in a cone shape inside the nozzle.

[0017] Furthermore, the inner sliding groove of the coating frame has inner tracks on both sides of the sliding groove, a sliding seat is provided at the rear end of the spray pipe, rollers are provided on both sides of the sliding seat, the rollers cooperate with the inner tracks, and the sliding seat is slidably arranged in the coating frame.

[0018] Furthermore, the sliding seat is threadably matched with the first screw rod, and two ends of the first screw rod are rotatably disposed on the lower mounting plate and the upper mounting plate respectively, and the first screw rod is driven by a first motor.

[0019] Furthermore, a track wheel is provided at the bottom of the coating frame, the coating frame and the second screw are threadedly driven, and the second screw is driven by a second motor.

[0020] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0021] 1. The turntable is provided with four positioning blocks evenly distributed at its center. The position of the positioning blocks is adjustable. The positioning device can be used to clamp elbows, tees and crosses. Different sizes can be clamped by adjusting the position of the positioning blocks, and the versatility is good.

[0022] 2. After the nozzle is inserted into one of the branch pipes of the grooved pipe fitting and the coating is completed, the pressure plate is raised, and the turntable is driven to rotate through the driving device to align the other branch pipe of the grooved pipe fitting with the nozzle. The nozzle then coats the inner wall of the other branch pipe. There is no need to position the grooved pipe fitting again, which improves work efficiency.

[0023] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the assembly of the turntable and the positioning block in the utility model;

[0026] Figure 3 It is a structural schematic diagram of a four-way pipe fitting placed on a positioning device in the utility model;

[0027] Figure 4 It is a structural schematic diagram of the positioning block in the utility model;

[0028] Figure 5 It is a schematic diagram of the assembly of the coating frame and the spray rod in the utility model;

[0029] Figure 6 yes Figure 1 Enlarged view of point H in the middle.

[0030] In the figure,

[0031] 1-stand, 2-mounting frame, 3-four-way pipe fitting, 4-turntable, 401-sliding groove, 5-positioning block, 501-V-shaped bearing groove, 502-square positioning block, 503-screw, 6-coating frame, 7-paint box, 8-track wheel, 9-spray pipe, 10-spray head, 101-flow channel hole, 11-sliding seat, 12-lower mounting plate, 13-upper mounting plate, 14-first motor, 15-first screw, 16-inner track, 17-second motor, 18-second screw, 19-cylinder, 20-pressing plate, 21-driving device. DETAILED DESCRIPTION

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0033] like Figure 1As shown, the utility model provides a large-diameter grooved pipe internal coating device, including a stand 1, on which a positioning device is rotatably installed, the positioning device includes a turntable 4, on which a positioning block 5 is slidably installed, and the positioning block 5 includes a V-shaped bearing groove 501 arranged at the upper end for bearing the grooved pipe. When fixing the grooved pipe, the grooved pipe is horizontally placed on the V-shaped bearing groove 501.

[0034] A coating frame 6 is slidably provided on one side of the platform 1 , and a spray pipe 9 is horizontally provided on one side of the coating frame 6 close to the platform 1 .

[0035] The rotating disk 4 is provided with four sliding grooves 401 evenly distributed at its center. A screw rod 503 is provided at the lower end of the V-shaped bearing groove 501 . A nut is matched on the screw rod 503 to fix the positioning block 5 on the rotating disk 4 .

[0036] Furthermore, a square positioning block 502 is provided at the lower end of the V-shaped bearing groove 501, and a screw 503 is provided on the square positioning block 502. The square positioning block 502 is slidably set in the sliding groove 401 to prevent the V-shaped bearing groove 501 from rotating freely on the turntable 4, thereby facilitating the positioning block 5 to be positioned.

[0037] A rotating shaft is fixed at the bottom of the turntable 4, and the rotating shaft is rotatably mounted on the stand 1. A driving device 21 is provided at the bottom of the stand 1 to drive the rotating shaft to rotate.

[0038] The stand 1 is provided with a mounting frame 2, on which a cylinder 19 is mounted, and a pressing plate 20 is provided at the lower end of the cylinder 19, and the pressing plate 20 is rotatably mounted on the telescopic rod of the cylinder 19. During coating, the pressing plate 20 is used to press the four-way pipe fitting 3.

[0039] The front end of the spray tube 9 is provided with a nozzle 10, and a circle of multiple flow holes 101 arranged around the axis of the nozzle 10 is provided inside the nozzle 10. The multiple flow holes 101 are arranged in a cone inside the nozzle 10, so that the sprayed paint is sprayed outward in a cone.

[0040] like Figure 5 The inner sliding groove of the coating frame 6 has inner tracks 16 on both sides of the sliding groove, a sliding seat 11 is provided at the rear end of the spray tube 9, rollers are provided on both sides of the sliding seat 11, the rollers cooperate with the inner track 16, and the sliding seat 11 is slidably set in the coating frame 6.

[0041] The sliding seat 11 is threadedly matched with the first screw 15, and the two ends of the first screw 15 are rotatably arranged on the lower mounting plate 12 and the upper mounting plate 13 respectively. The first screw 15 is driven by the first motor 14, and the rotation of the first screw 15 drives the spray pipe 9 to move up and down, so as to adapt to groove pipe fittings of different sizes.

[0042] The bottom of the coating frame 6 is provided with a track wheel 8, and the coating frame 6 is threadedly driven with a second screw 18, and the second screw 18 is driven by a second motor 17. A paint box 7 is also provided on the back side of the coating frame 6, and the paint is filled inside.

[0043] The specific working principle of the utility model:

[0044] The turntable 4 is provided with four positioning blocks 5 evenly distributed at its center, and the position of the positioning block 5 is adjustable. The positioning device can be used to clamp elbows, tees, and crosses. Different sizes can be clamped by adjusting the position of the positioning block 5, and the versatility is good.

[0045] After the nozzle 10 is inserted into one of the branch pipes of the grooved pipe fitting and the coating is completed, the pressure plate 20 is lifted, and the turntable 4 is driven to rotate by the driving device 21 to make the other branch pipe of the grooved pipe fitting align with the nozzle 10. The nozzle 10 then coats the inner wall of the other branch pipe. There is no need to position the grooved pipe fitting again, thereby improving work efficiency.

[0046] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A coating device for large-diameter grooved pipes, characterized in that: It comprises a stand (1), a positioning device is rotatably mounted on the stand (1), the positioning device comprises a turntable (4), a positioning block (5) is slidably mounted on the turntable (4), and the positioning block (5) comprises a V-shaped bearing groove (501) arranged at the upper end; A coating frame (6) is slidably provided on one side of the frame (1), and a spray pipe (9) is horizontally provided on a side of the coating frame (6) close to the frame (1).

2. A large-diameter grooved pipe internal coating device as claimed in claim 1, characterized in that: The rotating disk (4) is provided with four sliding grooves (401) evenly distributed at its center, and a screw rod (503) is provided at the lower end of the V-shaped bearing groove (501). A nut is matched on the screw rod (503) to fix the positioning block (5) on the rotating disk (4).

3. A large-diameter grooved pipe internal coating device as claimed in claim 2, characterized in that: A square positioning block (502) is provided at the lower end of the V-shaped bearing groove (501), a screw rod (503) is provided on the square positioning block (502), and the square positioning block (502) is slidably arranged in the sliding groove (401).

4. A large-diameter grooved pipe internal coating device as claimed in claim 1, characterized in that: A rotating shaft is fixed at the bottom of the rotating disk (4), and the rotating shaft is rotatably mounted on the platform (1). A driving device (21) is provided at the bottom of the platform (1).

5. A large-diameter grooved pipe internal coating device as claimed in claim 1, characterized in that: A mounting frame (2) is provided on the platform (1), a cylinder (19) is installed on the mounting frame (2), a pressing plate (20) is provided at the lower end of the cylinder (19), and the pressing plate (20) is rotatably mounted on the telescopic rod of the cylinder (19).

6. A large-diameter grooved pipe internal coating device as claimed in claim 1, characterized in that: A nozzle (10) is provided at the front end of the spray tube (9), and a circle of multiple flow channel holes (101) arranged with the axis of the nozzle (10) as the center is provided inside the nozzle head (10), and the multiple flow channel holes (101) are arranged in a cone shape inside the nozzle head (10).

7. A large-diameter grooved pipe internal coating device as claimed in claim 1, characterized in that: The inner sliding groove of the coating frame (6) is provided with inner tracks (16) on both sides of the sliding groove, the rear end of the spray pipe (9) is provided with a sliding seat (11), and rollers are provided on both sides of the sliding seat (11), the rollers cooperate with the inner tracks (16), and the sliding seat (11) is slidably arranged in the coating frame (6).

8. A large-diameter grooved pipe internal coating device as claimed in claim 7, characterized in that: The sliding seat (11) is threadably matched with the first screw rod (15), and two ends of the first screw rod (15) are rotatably arranged on the lower mounting plate (12) and the upper mounting plate (13), respectively. The first screw rod (15) is driven by a first motor (14).

9. A large-diameter grooved pipe internal coating device as claimed in claim 7, characterized in that: A track wheel (8) is provided at the bottom of the coating frame (6), and the coating frame (6) and the second screw (18) are threadedly driven, and the second screw (18) is driven by a second motor (17).

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