Coating device for grooved pipes

Abstract

The utility model belongs to the field of pipe fitting inner coating device, specifically is the inner coating device of trench pipe fitting, including trench pipe fitting body, one end of trench pipe fitting body is fixedly connected with the sealing plate, the inner chamber slidingly connected with the flexible pipe of sealing plate, the one end of flexible pipe is provided with smearing mechanism, smearing mechanism includes the shell, the one end of shell is rotatably connected in the flexible pipe, the inner wall fixedly connected with the center column of shell, the surface rotatably connected with the toothed disc of center column, the side of toothed disc is provided with the limit slot, the inner wall slidingly connected with the limit post of limit slot, one end of limit post is fixedly connected with the connecting rod, one end of connecting rod is fixedly connected with the smearing board, the inner chamber of shell is provided with transmission mechanism, the utility model discloses through smearing mechanism, avoided the structure variety of trench pipe fitting, the traditional trench pipe fitting inner coating device often is difficult to adjust the coating range, only suitable for the pipe fitting of specific caliber, and the flexibility is poor, leads to difficult to adapt to the trench pipe fitting demand of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of internal plastic coating devices for pipe fittings, specifically internal plastic coating devices for grooved pipe fittings. Background Technology

[0002] Grooved pipe fittings are widely used in fire protection, water supply and drainage, chemical industry, HVAC and other fields as an efficient and convenient way to connect pipes. However, traditional metal grooved pipe fittings are prone to internal wall corrosion, scaling or microbial growth when transporting corrosive media or in a humid environment for a long time, which affects the safety and service life of the pipeline system.

[0003] To enhance the corrosion resistance of pipe fittings, reduce fluid resistance, and adapt to the needs of transporting special media, grooved pipe fittings are usually coated with a plastic coating to protect the inner wall of the fittings. However, grooved pipe fittings have diverse structures, and traditional grooved pipe fittings are often difficult to adjust the coating range. They are only suitable for pipe fittings of specific diameters, which is not flexible and makes it difficult to adapt to the needs of grooved pipe fittings of different specifications. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, grooved pipe fittings have diverse structures. Traditional internal plastic coating devices for grooved pipe fittings are often difficult to adjust the coating range and are only suitable for pipe fittings of specific diameters. This results in poor flexibility and difficulty in adapting to the needs of grooved pipe fittings of different specifications. This utility model proposes an internal plastic coating device for grooved pipe fittings.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a grooved pipe fitting internal plastic coating device, including a grooved pipe fitting body, a sealing plate fixedly connected to one end of the grooved pipe fitting body, a telescopic tube slidably connected to the inner cavity of the sealing plate, and a coating mechanism provided at one end of the telescopic tube;

[0006] The coating mechanism includes a housing, which is rotatably connected to one end of a telescopic tube. A central column is fixedly connected to the inner wall of the housing, and a gear plate is rotatably connected to the surface of the central column. A limiting groove is formed on one side of the gear plate, and a limiting post is slidably connected to the inner wall of the limiting groove. A connecting rod is fixedly connected to one end of the limiting post, and one side of the connecting rod is slidably connected to the inner cavity of the housing. A coating plate is fixedly connected to one end of the connecting rod, and a transmission mechanism is provided in the inner cavity of the housing.

[0007] Preferably, the transmission mechanism includes a first motor, one side of which is fixedly connected to the inner wall of the housing, the output end of which is fixedly connected to a first rotating shaft, one end of which is fixedly connected to a first gear, one side of which is rotatably connected to the inner cavity of the housing, and the teeth of the first gear mesh with the teeth of the gear disc.

[0008] Preferably, a partition plate is fixedly connected to the inner wall of the telescopic tube, a second motor is fixedly connected to one side of the partition plate, a second rotating shaft is fixedly connected to the output end of the second motor, and one end of the second rotating shaft is fixedly connected to one side of the outer shell.

[0009] Preferably, the surface of the grooved pipe fitting body is fixedly connected to a clamp, the surface of the clamp is fixedly connected to a connecting rod, and the surface of the connecting rod is fixedly connected to a sliding plate.

[0010] Preferably, the inner cavity of the slide plate is rotatably connected to a second gear, and the inner cavity of the slide plate is threadedly connected to a screw, with the inner cavity of the second gear threadedly connected to the surface of the screw.

[0011] Preferably, the inner wall of the slide plate is rotatably connected to a rotating rod, and a third gear is fixedly connected to the surface of the rotating rod, the teeth of the third gear meshing with the teeth of the second gear.

[0012] Preferably, one end of the screw is fixedly connected to a positioning claw, the inner wall of the positioning claw is slidably connected to the surface of the telescopic tube, and the inner cavity of the positioning claw is threaded with a screw.

[0013] The advantages of this utility model are:

[0014] This invention, through the setting of a coating mechanism, addresses the issue that if the radius of the connecting rod is smaller than the inner radius of the grooved pipe fitting body, the coating plate cannot apply the coating to the inner wall of the grooved pipe fitting body. The telescopic tube then extends into the inner cavity of the grooved pipe fitting body, and the toothed disc rotates around the central column, causing the limiting groove on its surface to rotate. Because the limiting column is limited by the inner wall of the limiting groove and the inner cavity of the outer shell, the movement of the limiting groove causes the limiting column to move along the inner cavity of the outer shell. This, in turn, causes the connecting rod, which is fixedly connected to one end of the limiting column, to move, extending the connecting rod from the inner cavity of the outer shell. The connecting rod then causes the coating plate, which is fixedly connected to one end of the limiting column, to move towards the inner wall of the grooved pipe fitting body, thus expanding the coating radius. This solves the problems of diverse grooved pipe fitting structures, the difficulty in adjusting the coating range of traditional grooved pipe fitting internal coating devices, their applicability only to pipe fittings of specific diameters, and their lack of flexibility, making it difficult to adapt to the needs of different specifications of grooved pipe fittings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a three-dimensional schematic diagram of the entire utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the interior of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the second motor of this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the coating mechanism of this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the screw of this utility model.

[0021] In the diagram: 1. Grooved pipe body; 2. Sealing plate; 3. Telescopic pipe; 4. Coating mechanism; 401. Outer shell; 402. Central column; 403. Gear plate; 404. Limiting groove; 405. Limiting column; 406. Connecting rod; 407. Coating plate; 5. Transmission mechanism; 501. First motor; 502. First rotating shaft; 503. First gear; 6. Partition plate; 7. Second motor; 8. Second rotating shaft; 9. Gripper; 10. Connecting rod; 11. Slide plate; 12. Second gear; 13. Screw; 14. Rotating rod; 15. Third gear; 16. Positioning claw; 17. Screw. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses an internal plastic coating device for grooved pipe fittings. (See also...) Figures 1 to 4 The grooved pipe fitting internal plastic coating device includes a grooved pipe fitting body 1, a sealing plate 2 is fixedly connected to one end of the grooved pipe fitting body 1, a telescopic tube 3 is slidably connected to the inner cavity of the sealing plate 2, and a coating mechanism 4 is provided at one end of the telescopic tube 3.

[0025] The coating mechanism 4 includes a housing 401, which is rotatably connected to one end of the telescopic tube 3. A central column 402 is fixedly connected to the inner wall of the housing 401. A gear plate 403 is rotatably connected to the surface of the central column 402. A limiting groove 404 is formed on one side of the gear plate 403. A limiting post 405 is slidably connected to the inner wall of the limiting groove 404. A connecting rod 406 is fixedly connected to one end of the limiting post 405. One side of the connecting rod 406 is slidably connected to the inner cavity of the housing 401. A coating plate 407 is fixedly connected to one end of the connecting rod 406. A transmission mechanism 5 is provided in the inner cavity of the housing 401. By setting the coating mechanism 4, if the radius of the connecting rod 406 is smaller than the inner radius of the grooved pipe body 1, the coating plate 407 will be unable to apply the coating. The coating is applied to the inner wall of the grooved pipe fitting body 1. The telescopic tube 3 extends into the inner cavity of the grooved pipe fitting body 1. The gear disc 403 rotates around the central column 402, causing the limiting groove 404 on its surface to rotate. Since the limiting column 405 is limited by the inner wall of the limiting groove 404 and the inner cavity of the outer shell 401, the movement of the limiting groove 404 causes the limiting column 405 to move along the inner cavity of the outer shell 401. In turn, the limiting column 405 causes the connecting rod 406 fixedly connected at one end to move, extending the connecting rod 406 out of the inner cavity of the outer shell 401. The connecting rod 406 causes the coating plate 407 fixedly connected at one end to move towards the inner wall of the grooved pipe fitting body 1, thereby expanding the coating radius and applying the coating to the inner wall of the grooved pipe fitting body 1.

[0026] Reference Figure 4 The transmission mechanism 5 includes a first motor 501. One side of the first motor 501 is fixedly connected to the inner wall of the housing 401. The output end of the first motor 501 is fixedly connected to a first rotating shaft 502. One end of the first rotating shaft 502 is fixedly connected to a first gear 503. One side of the first gear 503 is rotatably connected to the inner cavity of the housing 401. The teeth of the first gear 503 mesh with the teeth of the gear disk 403. By setting the transmission mechanism 5, the first motor 501 works and controls the first rotating shaft 502 fixedly connected to its output end to rotate. Thus, the first rotating shaft 502 drives the first gear 503 fixedly connected to its end to rotate. Since the teeth of the first gear 503 mesh with the teeth of the gear disk 403, the rotation of the first gear 503 drives the rotation of the gear disk 403.

[0027] Reference Figure 3 A partition plate 6 is fixedly connected to the inner wall of the telescopic pipe 3. A second motor 7 is fixedly connected to one side of the partition plate 6. A second rotating shaft 8 is fixedly connected to the output end of the second motor 7. One end of the second rotating shaft 8 is fixedly connected to one side of the outer casing 401. By setting the second motor 7, the second motor 7 works and controls the rotation of the second rotating shaft 8 fixedly connected to its output end. Thus, the second rotating shaft 8 drives the outer casing 401 fixedly connected to its one end to rotate. At the same time, multiple coating plates 407 can be rotated by the outer casing 401, thereby uniformly coating the inner wall of the grooved pipe body 1.

[0028] Reference Figure 5 The surface of the grooved pipe fitting body 1 is fixedly connected to a clamp 9, the surface of the clamp 9 is fixedly connected to a connecting rod 10, and the surface of the connecting rod 10 is fixedly connected to a sliding plate 11. By setting the clamp 9, the clamps 9 on both sides can clamp and position the grooved pipe fitting body 1 by clamping it. Since the length of the connecting rod 10 is fixed, the position of the sliding plate 11 can be determined.

[0029] Reference Figure 5 The inner cavity of the slide plate 11 is rotatably connected to the second gear 12, and the inner cavity of the slide plate 11 is threadedly connected to the screw 13. The inner cavity of the second gear 12 is threadedly connected to the surface of the screw 13. By setting the second gear 12, the second gear 12 rotates. Since the inner cavity of the second gear 12 is threadedly connected to the surface of the screw 13, the screw 13 is driven by the second gear 12 to move axially along the screw 13.

[0030] Reference Figure 5 A rotating rod 14 is rotatably connected to the inner wall of the slide plate 11. A third gear 15 is fixedly connected to the surface of the rotating rod 14. The teeth of the third gear 15 mesh with the teeth of the second gear 12. By setting the third gear 15, the operator can rotate the rotating rod 14 to drive the third gear 15 fixedly connected to its surface. Since the teeth of the third gear 15 mesh with the teeth of the second gear 12, the third gear 15 drives the second gear 12 to rotate.

[0031] Reference Figure 5 One end of the screw 13 is fixedly connected to a positioning claw 16. The inner wall of the positioning claw 16 is slidably connected to the surface of the telescopic tube 3. The inner cavity of the positioning claw 16 is threaded with a screw 17. By setting the positioning claw 16, the movement of the screw 13 will drive the positioning claw 16 to move, so that the positioning claws 16 on both sides clamp the telescopic tube 3 to prevent the telescopic tube 3 from shaking when it moves axially. By setting the screw 17, the positioning claw 16 can be prevented from moving, thus fixing the positioning claw 16.

[0032] Working principle: If the radius of the connecting rod 406 is smaller than the inner radius of the grooved pipe fitting body 1, causing the coating plate 407 to be unable to apply the coating to the inner wall of the grooved pipe fitting body 1, the operator clamps the grooved pipe fitting body 1 with the gripper 9 and drives the rotating rod 14 to drive the third gear 15 fixedly connected to its surface. Since the teeth of the third gear 15 mesh with the teeth of the second gear 12, the third gear 15 drives the second gear 12 to rotate. Since the inner cavity of the second gear 12 is threadedly connected to the surface of the screw 13, the screw 13 is driven by the second gear 12 to move axially along the screw 13. Then, the screw 13 drives the positioning claw 16 to radially position the telescopic tube 3. After that, the telescopic tube 3 penetrates into the inner cavity of the grooved pipe fitting body 1. The first motor 501 works, controlling the first rotating shaft 502 fixedly connected to its output end to rotate. Thus, the first rotating shaft 502 drives the first gear 503 fixedly connected to one end to rotate. Since the teeth of the first gear 503 mesh with the teeth of the gear disc 403, the first gear 503 rotates. The teeth mesh with each other, so the rotation of the first gear 503 drives the gear disk 403 to rotate. The rotation of the gear disk 403 around the central column 402 drives the limiting groove 404 on its surface to rotate. Since the limiting column 405 is limited by the inner wall of the limiting groove 404 and the inner cavity of the outer shell 401, the movement of the limiting groove 404 drives the limiting column 405 to move along the inner cavity of the outer shell 401. In turn, the limiting column 405 drives the connecting rod 406 fixedly connected to one end to move, moving the connecting rod 406 from the outer shell 401. The inner cavity extends out, and the connecting rod 406 drives the coating plate 407, which is fixedly connected to one end, to move towards the inner wall of the grooved pipe fitting body 1, thereby expanding the coating radius and applying the coating to the inner wall of the grooved pipe fitting body 1. At the same time, the second motor 7 works and controls the second rotating shaft 8, which is fixedly connected to its output end, to rotate. Thus, the second rotating shaft 8 drives the outer shell 401, which is fixedly connected to one end, to rotate. At the same time, multiple coating plates 407 can be rotated by the outer shell 401, thereby uniformly coating the inner wall of the grooved pipe fitting body 1.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for internal plastic coating of grooved pipe fittings, characterized in that: It includes a grooved pipe fitting body (1), one end of which is fixedly connected to a sealing plate (2), and the inner cavity of the sealing plate (2) is slidably connected to a telescopic pipe (3), and one end of the telescopic pipe (3) is provided with a coating mechanism (4). The coating mechanism (4) includes a housing (401), which is rotatably connected to one end of the telescopic tube (3). A central column (402) is fixedly connected to the inner wall of the housing (401). A gear plate (403) is rotatably connected to the surface of the central column (402). A limiting groove (404) is opened on one side of the gear plate (403). A limiting column (405) is slidably connected to the inner wall of the limiting groove (404). A connecting rod (406) is fixedly connected to one end of the limiting column (405). One side of the connecting rod (406) is slidably connected to the inner cavity of the housing (401). A coating plate (407) is fixedly connected to one end of the connecting rod (406). A transmission mechanism (5) is provided in the inner cavity of the housing (401).

2. The grooved pipe fitting internal plastic coating device according to claim 1, characterized in that: The transmission mechanism (5) includes a first motor (501), one side of which is fixedly connected to the inner wall of the outer shell (401). The output end of the first motor (501) is fixedly connected to a first rotating shaft (502). One end of the first rotating shaft (502) is fixedly connected to a first gear (503). One side of the first gear (503) is rotatably connected to the inner cavity of the outer shell (401). The teeth of the first gear (503) mesh with the teeth of the gear disc (403).

3. The grooved pipe fitting internal plastic coating device according to claim 1, characterized in that: The inner wall of the telescopic tube (3) is fixedly connected to a partition plate (6), and a second motor (7) is fixedly connected to one side of the partition plate (6). The output end of the second motor (7) is fixedly connected to a second rotating shaft (8), and one end of the second rotating shaft (8) is fixedly connected to one side of the outer shell (401).

4. The grooved pipe fitting internal plastic coating device according to claim 1, characterized in that: The surface of the grooved pipe body (1) is fixedly connected to a clamp (9), the surface of the clamp (9) is fixedly connected to a connecting rod (10), and the surface of the connecting rod (10) is fixedly connected to a sliding plate (11).

5. The grooved pipe fitting internal plastic coating device according to claim 4, characterized in that: The inner cavity of the slide plate (11) is rotatably connected to a second gear (12), and the inner cavity of the slide plate (11) is threadedly connected to a screw (13), with the inner cavity of the second gear (12) threadedly connected to the surface of the screw (13).

6. The grooved pipe fitting internal plastic coating device according to claim 5, characterized in that: The inner wall of the slide plate (11) is rotatably connected to a rotating rod (14), and a third gear (15) is fixedly connected to the surface of the rotating rod (14). The teeth of the third gear (15) mesh with the teeth of the second gear (12).

7. The grooved pipe fitting internal plastic coating device according to claim 5, characterized in that: One end of the screw (13) is fixedly connected to a positioning claw (16), the inner wall of the positioning claw (16) is slidably connected to the surface of the telescopic tube (3), and the inner cavity of the positioning claw (16) is threaded with a screw (17).

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