Automatic spraying machine for cement lining of nodular cast iron pipe fitting

By designing an automatic spraying machine and utilizing the coordinated movement of an electric push rod and a spray head, the problem of uneven and incomplete spraying of cement linings for ductile iron pipe fittings was solved, achieving a uniform and efficient spraying effect.

CN223761302UActive Publication Date: 2026-01-06SHANXI SNOER CASTING CO LTD
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Patent Information

Application Number
CN202423108695.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-01-06
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

When spraying cement linings for existing ductile iron pipe fittings, manual operation is inefficient, resulting in uneven spraying and incomplete application, especially in deep areas where spraying is difficult.

Method used

Design an automatic cement lining spraying machine for ductile iron pipe fittings. The machine uses an electric push rod to drive the spray head to move slowly inside the ductile iron pipe. Combined with the rotation of the pipe fitting, it achieves uniform spraying. The slow forward movement of the spray head avoids incomplete spraying.

Benefits of technology

It improves the uniformity and efficiency of spraying, ensuring effective spraying even in deep areas, avoiding uneven and incomplete spraying, and enhancing the spraying effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223761302U_ABST
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Abstract

The utility model discloses an automatic spraying machine for a cement lining of a nodular cast iron pipe fitting, and relates to the technical field of spraying of nodular cast iron pipe fittings. The nodular cast iron pipe spraying device comprises a containing frame, a nodular cast iron pipe is arranged above the containing frame, liquid storage tanks are arranged on the left side and the right side of the containing frame respectively, the two liquid storage tanks are of the same connecting structure, spraying assemblies are arranged above the two liquid storage tanks respectively, and the two spraying assemblies are symmetrically arranged; the parts contained in the two spraying assemblies are the same, and the spraying assembly located on the left side comprises a fixing frame. The spraying assembly is arranged, specifically, the electric push rod is started to drive the spray head to enter the nodular cast iron pipe for spraying through the connecting push block and the conveying pipe, due to the fact that the nodular cast iron pipe rotates, spraying can be more uniform, the spray head slowly moves forwards, the spraying effect is improved, and the situation that spraying cannot be achieved is avoided; and meanwhile, the deep part of the nodular cast iron pipe is conveniently sprayed.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to nodular cast iron pipe fitting spraying technical field, especially, relate to a kind of nodular cast iron pipe fitting cement lining automatic spraying machine. BACKGROUND

[0002] Nodular cast iron pipe is with magnesium or rare earth magnesium bonding agent nodularization in molten iron before pouring, make graphite nodularization, stress concentration reduces, make pipe material have the advantages such as big strength, high elongation, impact resistance, corrosion resistance, good sealing property;Inner wall uses cement mortar lining, improve the pipeline water environment, improve water supply capacity, reduce energy consumption.

[0003] Nodular cast iron pipe fitting cement lining usually needs to be sprayed on inner wall after production to achieve corrosion resistance, the existing nodular cast iron pipe fitting cement lining is usually sprayed on lining by artificial holding spraying equipment, manual operation is not only inefficient, but also uneven spraying, there may be problems such as incomplete spraying in some areas, and it is not easy to operate when spraying deeper parts, therefore we propose a kind of nodular cast iron pipe fitting cement lining automatic spraying machine. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of nodular cast iron pipe fitting cement lining automatic spraying machine, by setting up spraying assembly, it is specifically to start electric push rod by connecting push block and conveying pipe to drive spray head into nodular cast iron pipe to spray, since nodular cast iron pipe rotates, it can be sprayed more evenly, and spray head slowly moves forward, to improve spraying effect, avoid the situation that spraying is not reached, it is convenient to spray the deep part of nodular cast iron pipe, solve the problem that nodular cast iron pipe fitting cement lining is usually sprayed on lining by artificial holding spraying equipment when spraying, manual operation is not only inefficient, but also uneven spraying, there may be problems such as incomplete spraying in some areas.

[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a kind of nodular cast iron pipe fitting cement lining automatic spraying machine, including placing rack, the nodular cast iron pipe is arranged above the placing rack, the left side and the right side of the placing rack are provided with liquid storage tank, two The connecting structure of the liquid storage tank is same, two The liquid storage tank is provided with spraying assembly above, two The spraying assembly is symmetrically arranged, two The parts included in the spraying assembly are same;

[0007] The spraying assembly located on the left side comprises a fixing frame, a support frame fixedly connected to the top of the fixing frame, a circular hole formed in the center of the support frame, a conveying pipe slidably connected to the inner wall of the circular hole, a spray head fixedly connected to the right side of the conveying pipe, and a connecting push block fixedly connected to the outer surface of the conveying pipe. By setting the spraying assembly, specifically, starting the electric push rod to drive the spray head into the ductile iron pipe for spraying through the connecting push block and the conveying pipe, the ductile iron pipe rotates, so that the spraying is more uniform, and the spray head moves slowly forward, thereby improving the spraying effect and avoiding the situation that the ductile iron pipe cannot be sprayed. At the same time, it is convenient to spray the deep part of the ductile iron pipe.

[0008] Further, two slide rods are fixedly connected to the left side of the support frame, two support blocks are fixedly connected to the left side of the two slide rods, the bottoms of the two support blocks are fixedly connected to the top of the fixing frame, and a connecting frame is arranged on the left side of the connecting push block. The electric push rod is fixedly connected to the left side of the connecting frame. The conveying pipe will slide on the support frame during movement, which can support the conveying pipe.

[0009] Further, a booster pump is fixedly connected to the left side of the liquid storage tank located on the left side, a hose is fixedly connected to the left side of the booster pump, the other end of the hose is fixedly connected to the left side of the conveying pipe, two fixed plates are fixedly connected to the outer surface of the hose, a sliding hole one is formed in the inner part of each of the two fixed plates, and the inner wall of the sliding hole one is slidably connected to the outer surface of the slide rod. By setting the fixed plate, specifically, when the conveying pipe moves, the hose will also move, and the fixed plate on the hose will slide on the slide rod through the sliding hole one, which can support the hose and avoid winding or deviation of the hose, thereby improving the conveying effect of the liquid, and the hose is also convenient to store after the conveying pipe is retracted.

[0010] Further, the bottom of the fixing frame is fixedly connected to the top of the placing frame, the right side output end of the electric push rod is fixedly connected to the left side of the connecting push block, two sliding holes two are formed in the inner part of the connecting push block, and the inner walls of the two sliding holes two are in contact with the outer surfaces of the two slide rods. The connecting push block will slide on the slide rod through the sliding hole two, thereby improving the stability of the connecting push block during movement.

[0011] Further, two rotating seats are arranged below the ductile iron pipe, the two rotating seats are symmetrically arranged, the two rotating seats contain the same parts inside, a connecting plate is fixedly connected to the bottom of the rotating seat, the bottom of the connecting plate is fixedly connected to the top of the placing frame, and a plurality of rotating rollers are rotatably connected to the inner part of the rotating seat. Starting the motor to drive the rotating rollers to rotate, and then the rotating rollers drive the ductile iron pipe to rotate slowly.

[0012] Further, the rotating seat left side fixedly connected with motor, the motor right side output end and located in the front rotating stick left side fixedly connected, a plurality of rotating stick outer surface all fixedly connected with a plurality of protruding blocks, by setting a plurality of protruding blocks can prevent nodular cast iron pipe slip occurs, make nodular cast iron pipe more stable when rotating.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] 1. The utility model discloses a spraying assembly, which is started by an electric push rod to drive a push block and a conveying pipe to drive a spray head into the nodular cast iron pipe for spraying. Since the nodular cast iron pipe rotates, the spraying is more uniform, and the spray head moves slowly forward, thereby improving the spraying effect and avoiding the situation that the nodular cast iron pipe cannot be sprayed. Meanwhile, the nodular cast iron pipe deep part can be sprayed conveniently.

[0015] 2. The utility model discloses a fixing plate, which is moved with the conveying pipe to slide on the slide rod through the slide hole one, thereby supporting the hose and avoiding the situation that the hose is wound or deviated, improving the liquid conveying effect, and facilitating the hose storage after the conveying pipe is retracted.

[0016] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0017] To make the technical solutions of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed for the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is the overall structure schematic diagram of the utility model;

[0019] Figure 2 It is the overall structure schematic diagram of the spraying assembly of the utility model;

[0020] Figure 3 It is the overall structure schematic diagram of the utility model Figure 2 It is the enlarged structure schematic diagram of A in the utility model;

[0021] Figure 4 It is the overall structure schematic diagram of the hose of the utility model;

[0022] Figure 5 It is the overall structure schematic diagram of the rotating seat of the utility model.

[0023] In the drawings, the components represented by each number are listed as follows:

[0024] 1, rack; 11, ductile cast iron pipe; 12, liquid storage tank; 121, booster pump; 122, hose; 123, fixed plate; 124, sliding hole one; 13, spraying assembly; 131, fixed frame; 132, support frame; 321, conveying pipe; 322, spray head; 323, connecting push block; 324, sliding hole two; 133, sliding rod; 134, support block; 135, connecting frame; 136, electric push rod; 14, rotating seat; 141, connecting plate; 142, rotating stick; 143, motor. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] Please refer to Figures 1-5 As shown in the figure, the utility model is a kind of ductile cast iron pipe cement lining automatic spraying machine, including rack 1, rack 1 top is provided with ductile cast iron pipe 11, rack 1 left side and right side are both provided with liquid storage tank 12, two liquid storage tanks 12 are connected with same structure, two liquid storage tanks 12 top are both provided with spraying assembly 13, two spraying assemblies 13 are symmetrically arranged, two spraying assemblies 13 inside include same parts;

[0027] The spraying assembly 13 located on the left side includes fixed frame 131, the top of fixed frame 131 is fixedly connected with support frame 132, a circular hole is formed in the center of support frame 132, a conveying pipe 321 is slidably connected to the inner wall of the circular hole, a spray head 322 is fixedly connected to the right side of conveying pipe 321, and a connecting push block 323 is fixedly connected to the outer surface of conveying pipe 321. By setting the spraying assembly 13, specifically, the electric push rod 136 is started to drive the spray head 322 into the ductile cast iron pipe 11 for spraying through the connecting push block 323 and the conveying pipe 321. Since the ductile cast iron pipe 11 rotates, it can be sprayed more evenly, and the spray head 322 moves slowly forward, thereby improving the spraying effect and avoiding the situation that the ductile cast iron pipe 11 cannot be sprayed. At the same time, it is convenient to spray the deep part of the ductile cast iron pipe 11.

[0028] The left side of support frame 132 is fixedly connected with two sliding rods 133, the left side of each of the two sliding rods 133 is fixedly connected with a support block 134, the bottom of each of the two support blocks 134 is fixedly connected with the top of fixed frame 131, the left side of connecting push block 323 is provided with a connecting frame 135, and the left side of connecting frame 135 is fixedly connected with an electric push rod 136.

[0029] The liquid storage tank 12 left side is fixedly connected with a booster pump 121, the booster pump 121 left side is fixedly connected with a hose 122, the other end of the hose 122 is fixedly connected with the left side of the conveying pipe 321, the outer surface of the hose 122 is fixedly connected with two fixed plates 123, the two fixed plates 123 are both provided with a sliding hole one 124, the inner wall of the sliding hole one 124 is in sliding connection with the outer surface of the sliding rod 133, by setting the fixed plate 123, specifically the conveying pipe 321 in motion, the hose 122 will move together, then the fixed plate 123 on the hose 122 will slide on the sliding rod 133 through the sliding hole one 124, which can support the hose 122, and avoid the hose 122 from winding or deviating, improve the conveying effect of the liquid, and after the conveying pipe 321 retreats, the hose 122 is also convenient to store.

[0030] The fixed frame 131 bottom is fixedly connected with the top of the placing frame 1, the right side output end of the electric push rod 136 is fixedly connected with the left side of the connecting push block 323, the connecting push block 323 is provided with two sliding holes two 324, and the inner walls of the two sliding holes two 324 are in contact with the outer surfaces of the two sliding rods 133.

[0031] The nodular cast iron pipe 11 is provided below with two rotating seats 14, the two rotating seats 14 are symmetrically arranged, the two rotating seats 14 contain the same parts inside, the rotating seat 14 bottom is fixedly connected with a connecting plate 141, the connecting plate 141 bottom is fixedly connected with the top of the placing frame 1, and the rotating seat 14 is rotatably connected with a plurality of rotating rods 142.

[0032] The rotating seat 14 left side is fixedly connected with a motor 143, the right side output end of the motor 143 is fixedly connected with the left side of the rotating rod 142 located in front, and the outer surfaces of the plurality of rotating rods 142 are all fixedly connected with a plurality of convex blocks.

[0033] One specific application of the embodiment is:

[0034] In use, the ductile cast iron pipe 11 is placed on the rotating seat 14, and the surface of the ductile cast iron pipe 11 is in contact with the surface of the rotating stick 142. Then the motor 143 is started to drive the rotating stick 142 to rotate, and the rotating stick 142 drives the ductile cast iron pipe 11 to rotate slowly. Then the electric push rod 136 is started to drive the connecting push block 323 to move towards the ductile cast iron pipe 11, and the connecting push block 323 drives the conveying pipe 321 to move together. At the same time, the connecting push block 323 will slide on the sliding rod 133 through the sliding hole two 324, improving the stability of the connecting push block 323 when moving. When the nozzle 322 enters the inside of the ductile cast iron pipe 11, the booster pump 121 is started to pump the liquid in the liquid storage tank 12 out, through the hose 122 to the conveying pipe 321, and then sprayed out through the nozzle 322, to spray the lining of the ductile cast iron pipe 11. Since the ductile cast iron pipe 11 rotates, it can be sprayed more evenly. The electric push rod 136 drives the conveying pipe 321 to move slowly through the connecting push block 323, so that the nozzle 322 moves slowly forward, thereby improving the spraying effect and avoiding the situation that the ductile cast iron pipe 11 cannot be sprayed. At the same time, it is convenient to spray the ductile cast iron pipe 11 deep, and the ductile cast iron pipe 11 left and right sides are sprayed at the same time, which can be quickly completed, improving the work efficiency. The conveying pipe 321 will slide on the supporting frame 132 during movement, which can support the conveying pipe 321. When the conveying pipe 321 moves, the fixed plate 123 on the hose 122 will slide on the sliding rod 133 through the sliding hole one 124, which can support the hose 122 and avoid the situation that the hose 122 is wound or deviated, improving the liquid conveying effect. After the conveying pipe 321 retreats, it is also convenient to store the hose 122. After the spraying is completed, the electric push rod 136 drives the connecting push block 323 to reset, and the conveying pipe 321 drives the nozzle 322 to reset, so that the spraying work is completed.

[0035] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific implementation described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that those skilled in the art can well understand and use the utility model. The utility model is limited only by the claims and the entire scope and equivalents thereof.

Claims

1. A ductile cast iron pipe automatic cement lining spraying machine, comprising a placing rack (1), a ductile cast iron pipe (11) is arranged above the placing rack (1), liquid storage tanks (12) are arranged on the left side and the right side of the placing rack (1), characterized in that: Two said liquid tank (12) connecting structure is same, two said liquid tank (12) top is provided with spraying assembly (13), two said spraying assembly (13) is symmetrically arranged, two said spraying assembly (13) inside the same parts contained; The spraying assembly (13) on the left side includes a fixed frame (131), the top of the fixed frame (131) is fixedly connected with a support frame (132), a circular hole is formed in the center of the support frame (132), a conveying pipe (321) is slidably connected to the inner wall of the circular hole, a spray head (322) is fixedly connected to the right side of the conveying pipe (321), and a connecting push block (323) is fixedly connected to the outer surface of the conveying pipe (321).

2. The automatic ductile cast iron pipe cement lining spray machine according to claim 1, characterized in that, The support frame (132) is fixedly connected with two slide rods (133) on the left side, two support blocks (134) are fixedly connected to the left sides of the two slide rods (133), the bottoms of the two support blocks (134) are fixedly connected with the top of the fixed frame (131), and the left side of the connecting push block (323) is provided with a connecting frame (135).

3. The automatic ductile cast iron pipe cement lining spray machine according to claim 2, characterized in that, The left side of the liquid tank (12) on the left side is fixedly connected with a booster pump (121), the left side of the booster pump (121) is fixedly connected with a hose (122), and the other end of the hose (122) is fixedly connected with the left side of the conveying pipe (321).

4. The automatic ductile cast iron pipe cement lining spray machine according to claim 3, characterized in that, The outer surface of the hose (122) is fixedly connected with two fixed plates (123), and the inner portions of the two fixed plates (123) are provided with sliding holes (124).

5. The automatic ductile cast iron pipe cement lining spray machine according to claim 4, characterized in that, The bottom of the fixed frame (131) is fixedly connected with the top of the placing frame (1), the right side output end of the electric push rod (136) is fixedly connected with the left side of the connecting push block (323), the inner portion of the connecting push block (323) is provided with two sliding holes (324), and the inner walls of the two sliding holes (324) are in contact with the outer surfaces of the two slide rods (133).

6. The automatic ductile cast iron pipe cement lining spray machine according to claim 4, characterized in that, The bottom of the fixed frame (131) is fixedly connected with the top of the placing frame (1), the right side output end of the electric push rod (136) is fixedly connected with the left side of the connecting push block (323), the inner portion of the connecting push block (323) is provided with two sliding holes (324), and the inner walls of the two sliding holes (324) are in contact with the outer surfaces of the two slide rods (133).

7. The automatic ductile cast iron pipe cement lining spray machine according to claim 6, characterized in that, The left side of the rotating seat (14) is fixedly connected with a motor (143), the right side output end of the motor (143) is fixedly connected with the left side of the rotating rod (142) located in front, and the outer surfaces of the plurality of rotating rods (142) are fixedly connected with a plurality of protrusions.