Inner wall and outer wall synchronous spraying equipment for water conveying steel pipe

Abstract

The utility model relates to the technical field of water conveying pipelines, in particular to inner and outer wall synchronous spraying equipment for a water conveying steel pipe, which comprises a supporting end frame, the bottom of one end of the supporting end frame is connected with two guide rails, the supporting end frame is provided with two spraying pipes which are oppositely arranged and provided with a plurality of spraying openings at intervals, and one side of each spraying pipe is further provided with a drying strip. The spraying feeding mechanism is used for supplying spraying liquid to the two spraying pipes, the two spraying pipes and the two drying strips can integrally translate, the movable sliding frame can be in guiding sliding fit along the two guide rails, pipe supporting rollers arranged below the spraying pipes and the drying strips are arranged on the two sides of the top of the movable sliding frame, and the pipe supporting rollers are arranged on the two sides of the top of the movable sliding frame. According to the spraying device, the inner wall and the outer wall of the water conveying steel pipe can be conveniently and rotationally sprayed, the water conveying pipe is driven to rotate from the right lower portion during spraying, synchronous drying is conducted during spraying, meanwhile, the spraying device is suitable for spraying of water conveying pipes of different specifications, and the stability of the overall structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of water pipeline technology, specifically to a device for synchronous spraying of the inner and outer walls of water pipeline steel pipes. Background Technology

[0002] The main functions of spraying the inner and outer walls of water supply steel pipes include corrosion prevention, rust prevention, improving transportation efficiency, and reducing energy consumption. Internally and externally coated steel pipes are widely used in municipal construction, water conservancy projects, petrochemicals, power, environmental protection and other fields. In municipal construction, it is often used for laying pipe networks for tap water, sewage, and rainwater; in water conservancy projects, it is used for reservoirs, hydropower stations, and water diversion projects; in the petrochemical and power industries, it is used to transport various corrosive media and high-temperature, high-pressure fluids. Existing synchronous spraying devices for the inner and outer walls of water pipelines typically place the pipeline on two support rollers and then spray from above or below. They can drive both support rollers simultaneously or one support roller can drive the pipeline to rotate. However, driving only one support roller can easily cause instability, while driving two support rollers results in a more complex structure. Therefore, a device is designed to facilitate the rotational spraying of the inner and outer walls of water pipelines, driving the pipeline to rotate from directly below during spraying, and simultaneously drying the pipes. This device is suitable for spraying water pipelines of different specifications and improves the overall structural stability of the water pipeline. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a device for simultaneous internal and external wall spraying of water supply steel pipes. This device facilitates the spraying of the internal and external walls of the water supply steel pipes while rotating them. During spraying, the water supply pipe is driven to rotate from directly below, and drying is performed simultaneously with the spraying. It is also suitable for spraying water supply pipes of different specifications, thereby improving the overall structural stability.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a synchronous inner and outer wall spraying device for water conveying steel pipes, comprising a support end frame with two guide rails connected to one end of the bottom, two spraying pipes with multiple spray nozzles spaced apart and arranged opposite each other on the support end frame, a drying strip on one side of each spraying pipe, a spraying material supply mechanism for supplying spraying liquid to the two spraying pipes, and the two spraying pipes and two drying strips being able to be moved as a whole, and a movable slide that can be guided and slidably engaged along the two guide rails, with support rollers arranged on both sides of the top of the movable slide and positioned below the spraying pipes and drying strips, a lifting plate with a top roller rotatably connected to the top of the two support rollers being positioned directly below the middle position of the two support rollers, an elastic lifting mechanism being provided between the lifting plate and the movable slide, and a rotary drive mechanism for driving the top roller to rotate being provided on the lifting plate.

[0007] Preferably, the top of the support end frame is slidably fitted with a guide slider via a drive cylinder, both spray pipes are fixedly connected to the guide slider, and both drying strips are fixedly connected to the guide slider via a mounting baffle, with the drying strips positioned on the side of the mounting baffle away from the spray pipes.

[0008] Preferably, the spraying material supply mechanism includes a pressure pump fixedly installed on the support end frame, and a liquid distribution pipe fixedly installed on the guide slider and connected to the two spraying pipes. The output shaft of the pressure pump is fixedly connected to the liquid distribution pipe through a telescopic flexible hose, and a connecting pipe is fixedly connected to the output end of the pressure pump.

[0009] Preferably, the elastic lifting mechanism includes a plurality of vertical sliding rods that slide vertically with the lifting plate. The plurality of vertical sliding rods are respectively disposed on both sides of the top roller and their bottoms are fixedly connected to the movable slide frame. The tops of the plurality of vertical sliding rods are fixedly connected to limit blocks. Each of the plurality of vertical sliding rods is fitted with a crushing spring. The two ends of the crushing spring are fixedly connected to the lifting plate and the movable slide frame, respectively.

[0010] Preferably, it further includes a traction mechanism, which includes a screw rotatably connected to the support end frame, a fixing block threadedly connected to the screw and fixedly connected to the movable slide, and a traction drive motor for driving the screw to rotate is fixedly installed on the support end frame.

[0011] Preferably, the bottom of the movable carriage is provided with a plurality of guide wheels that slide and cooperate with the guide rail.

[0012] The rotary drive mechanism includes a rotary drive motor fixedly installed at the bottom of the lifting plate, and the output shaft of the rotary drive motor is connected to the top roller through a transmission assembly.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a device for simultaneous internal and external wall spraying of water conveyance steel pipes, which has the following beneficial effects:

[0015] This water-transporting steel pipe synchronous internal and external wall spraying equipment uses a movable carriage with two support rollers at the top to easily support the water-transporting steel pipe. The carriage can move along the support end frame. Before moving, the horizontal positions of the two spray pipes and two drying strips can be shifted so that the inner and outer walls of the water-transporting pipe are inserted between the spray pipes and drying strips on both sides. Then, the spraying supply mechanism provides spraying liquid to the spray pipes for spraying. During spraying, the rotary drive mechanism is activated to rotate the top roller located directly below the water-transporting pipe, thereby rotating the water-transporting pipe. The rotating water-transporting pipe is then sprayed through the spray pipes, while simultaneously dried by the drying strips. This synchronous internal and external wall spraying equipment facilitates the spraying of the inner and outer walls of the water-transporting steel pipe while rotating. During spraying, the water-transporting pipe is driven to rotate from directly below, and simultaneous drying occurs during spraying. It is suitable for spraying water-transporting pipes of different specifications, improving the overall structural stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the water supply steel pipe of this utility model;

[0017] Figure 2 This utility model Figure 1 A magnified schematic diagram of the local structure at point A;

[0018] Figure 3 This is a structural schematic diagram of the water supply steel pipe placed in this utility model from other perspectives;

[0019] Figure 4 This is a schematic diagram of the overall structure of this utility model without the placement of a water supply steel pipe;

[0020] Figure 5 This is a schematic diagram of the structure of the movable carriage and the support roller of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the movable carriage, elastic lifting mechanism and top roller of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the guide rail, the guide rail and the traction mechanism of this utility model.

[0023] The following components are labeled in the attached diagram: 1. Guide rail; 2. Moving carriage; 3. Guide wheel; 4. Host roller; 5. Lifting plate; 6. Top roller; 7. Rotary drive motor; 8. Transmission assembly; 9. Vertical slide bar; 10. Limit block; 11. Crushing spring; 12. Support end frame; 13. Drive cylinder; 14. Guide slider; 15. Spray pipe; 16. Mounting baffle; 17. Drying strip; 18. Pressure pump; 19. Telescopic hose; 20. Screw; 21. Traction drive motor; 22. Fixing block. Detailed Implementation

[0024] 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 protection scope of the present utility model. Example

[0025] Please see Figure 1-7 A synchronous spraying device for the inner and outer walls of a water conveying steel pipe includes a support end frame 12 with two guide rails 1 connected to one end of the bottom. The support end frame 12 is provided with two spray pipes 15 arranged opposite each other and spaced apart with multiple spray nozzles. A drying strip 17 is also provided on one side of the spray pipe 15. The device also includes a spraying material supply mechanism for supplying spraying liquid to the two spray pipes 15. The two spray pipes 15 and the two drying strips 17 can be moved as a whole. The device also includes a movable slide 2 that can slide and be guided along the two guide rails 1. The top two sides of the movable slide 2 are provided with support rollers 4 located below the spray pipes 15 and the drying strips 17. A lifting plate 5 with a top roller 6 rotatably connected to the top is provided directly below the middle position of the two support rollers 4. An elastic lifting mechanism is provided between the lifting plate 5 and the movable slide 2. A rotary drive mechanism for driving the top roller 6 to rotate is also provided on the lifting plate 5.

[0026] Specifically, the top of the support end frame 12 is slidably fitted with a guide slider 14 via a drive cylinder 13. Both spray pipes 15 are fixedly connected to the guide slider 14, and both drying strips 17 are fixedly connected to the guide slider 14 via a mounting baffle 16. The drying strips 17 are positioned on the mounting baffle 16 on the side away from the spray pipes 15. The drive cylinder 13 and the guide slider 14 facilitate the horizontal movement of the two spray pipes 15 and the two drying strips 17. The mounting baffle 16 facilitates the installation of the drying strips 17 while preventing the spray liquid from the spray pipes 15 from splashing onto the drying strips 17.

[0027] Specifically, the spraying material supply mechanism includes a pressure pump 18 fixedly installed on the support end frame 12. A liquid distribution pipe that is fixedly connected to the two spraying pipes 15 is also fixedly installed on the guide slider 14. The output shaft of the pressure pump 18 is fixedly connected to the liquid distribution pipe through a telescopic hose 19. The output end of the pressure pump 18 is fixedly connected to a connecting pipe. In use, the spraying liquid tank can be placed on one side of the pressure pump 18, and then the connecting pipe can be inserted into the spraying liquid tank. Then the pressure pump 18 can be started, and the liquid can be introduced into the liquid distribution pipe through the telescopic hose 19 and then distributed to the two spraying pipes 15. The inner and outer walls of the water supply pipe are sprayed through the two spraying pipes 15.

[0028] Specifically, the elastic lifting mechanism includes multiple vertical sliding rods 9 that slide vertically with the lifting plate 5. The multiple vertical sliding rods 9 are respectively located on both sides of the top roller 6 and their bottoms are fixedly connected to the movable slide 2. The tops of the multiple vertical sliding rods 9 are fixedly connected to limit blocks 10. Each of the multiple vertical sliding rods 9 is fitted with a crushing spring 11. The two ends of the crushing spring 11 are fixedly connected to the lifting plate 5 and the movable slide 2 respectively. Through the cooperation of the transmission assembly 8, the vertical sliding rods 9 and the limit blocks 10, the lifting plate 5 and the top roller 6 can be lifted and buffered as a whole, so that the top roller 6 rests against the bottom of the water conveying pipe.

[0029] Specifically, it also includes a traction mechanism, which includes a screw 20 rotatably connected to the support end frame 12. A fixing block 22, which is fixedly connected to the movable slide 2, is threaded onto the screw 20. A traction drive motor 21, which drives the screw 20 to rotate, is fixedly installed on the support end frame 12. When the traction drive motor 21 is started, its output shaft rotates clockwise or counterclockwise, thereby driving the screw 20 to rotate clockwise or counterclockwise. This causes the fixing block 22 to move to the left or right parallel to the guide rail 1, thereby causing the movable slide 2 to move on the two guide rails 1 towards the side closer to the support end frame 12 or away from the support end frame 12.

[0030] Specifically, the rotary drive mechanism includes a rotary drive motor 7 fixedly installed at the bottom of the lifting plate 5. The output shaft of the rotary drive motor 7 is connected to the top roller 6 via a transmission assembly 8. Furthermore, the transmission assembly 8 can be configured as a sprocket and chain or a pulley and belt transmission form, preferably a sprocket and chain transmission form.

[0031] Specifically, the bottom of the movable carriage 2 is provided with multiple guide wheels 3 that slide and cooperate with the guide rail 1. The guide wheels 3 facilitate the movement of the movable carriage 2 on the guide rail 1, reduce friction, and improve the ease of movement.

[0032] In use, move the movable carriage 2 from the support end frame 12 to the side away from the support end frame 12, then place the water supply pipe on the two support rollers 4, and at the same time press the lifting plate 5 down at the bottom of the water supply pipe. Then, adjust the horizontal position between the two spray pipes 15 and the two drying strips 17 according to the diameter of the water supply pipe, so that the side wall of the water supply pipe can be inserted between the two spray pipes 15 and the two drying strips 17. Then push the movable carriage 2 to the side of the support end frame 12 so that the entire supply pipe is fitted onto the two spray pipes 15. Then start the rotary drive mechanism to drive the top roller 6 to rotate, which in turn drives the water supply pipe to rotate. At the same time, start the spraying material supply mechanism to supply liquid to the two spray pipes 15, so that the two spray pipes 15 spray the rotating water supply pipe inside and out. As the spraying proceeds, the sprayed part is dried in time by the drying strips 17 until the entire spraying is dried. Finally, pull the movable carriage 2 outward to remove the sprayed and dried water supply pipe.

[0033] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0034] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0035] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A device for simultaneous internal and external wall spraying of water conveyance steel pipes, characterized in that: The system includes a support end frame (12) with two guide rails (1) connected to one end of the bottom. The support end frame (12) is provided with two spray pipes (15) with multiple spray nozzles spaced apart and arranged opposite each other. A drying strip (17) is also provided on one side of the spray pipe (15). The system also includes a spraying material supply mechanism for supplying spraying liquid to the two spray pipes (15). The two spray pipes (15) and the two drying strips (17) can be moved as a whole. The system also includes a movable slide (2) that can be guided and slid along the two guide rails (1). The movable slide (2) is provided with a support roller (4) on both sides of the top of the top of the spray pipes (15) and the drying strips (17). A lifting plate (5) with a top roller (6) rotatably connected to the top of the two support rollers (4) is provided directly below the middle position of the two support rollers (4). An elastic lifting mechanism is provided between the lifting plate (5) and the movable slide (2). A rotary drive mechanism for driving the top roller (6) to rotate is also provided on the lifting plate (5).

2. The synchronous spraying equipment for the inner and outer walls of water conveyance steel pipes according to claim 1, characterized in that: The top of the support end frame (12) is slidably fitted with a guide slider (14) via a drive cylinder (13). Both spray pipes (15) are fixedly connected to the guide slider (14), and both drying strips (17) are fixedly connected to the guide slider (14) via a mounting baffle (16). The drying strips (17) are located on the side of the mounting baffle (16) away from the spray pipes (15).

3. The synchronous spraying equipment for the inner and outer walls of water conveyance steel pipes according to claim 2, characterized in that: The spraying material supply mechanism includes a pressure pump (18) fixedly installed on the support end frame (12). The guide slider (14) is also fixedly installed with a liquid distribution pipe that is fixedly connected to the two spraying pipes (15). The output shaft of the pressure pump (18) is fixedly connected to the liquid distribution pipe through a telescopic hose (19). The output end of the pressure pump (18) is fixedly connected to a connecting pipe.

4. The synchronous internal and external wall spraying equipment for water conveyance steel pipes according to claim 3, characterized in that: The elastic lifting mechanism includes multiple vertical sliding rods (9) that slide vertically with the lifting plate (5). The multiple vertical sliding rods (9) are respectively located on both sides of the top roller (6) and their bottoms are fixedly connected to the movable slide (2). The tops of the multiple vertical sliding rods (9) are fixedly connected to limit blocks (10). Each of the multiple vertical sliding rods (9) is fitted with a crushing spring (11). The two ends of the crushing spring (11) are fixedly connected to the lifting plate (5) and the movable slide (2) respectively.

5. The synchronous spraying equipment for the inner and outer walls of water conveyance steel pipes according to claim 4, characterized in that: It also includes a traction mechanism, which includes a screw (20) rotatably connected to the support end frame (12), a fixing block (22) fixedly connected to the movable slide (2) is threaded on the screw (20), and a traction drive motor (21) for driving the screw (20) to rotate is fixedly installed on the support end frame (12).

6. The synchronous internal and external wall spraying equipment for water conveyance steel pipes according to claim 5, characterized in that: The bottom of the movable carriage (2) is provided with multiple guide wheels (3) that slide and cooperate with the guide rail (1).

7. The synchronous spraying equipment for the inner and outer walls of water conveyance steel pipes according to claim 5, characterized in that: The rotary drive mechanism includes a rotary drive motor (7) fixedly installed at the bottom of the lifting plate (5), and the output shaft of the rotary drive motor (7) is connected to the top roller (6) through a transmission assembly (8).

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