Continuous spraying device for steel pipe anti-corrosion construction

Abstract

The utility model discloses a continuous spraying device for steel pipe anti-corrosion construction, which relates to the technical field of steel pipe spraying and comprises a supporting pipe, a movable disc, a connecting ring, a connecting disc and a nozzle. The automatic wheel assembly comprises a walking wheel, a first bevel gear, a fixing plate, a rotating shaft, a first limiting shaft, a first bevel gear, a micro motor, a second limiting shaft and a second bevel gear. The situation that the two ends of the whole device need to be manually conveyed back and forth during spraying of the inner wall of the steel pipe is avoided, the whole spraying time can be saved, efficient spraying operation is achieved, manual dragging is not needed during spraying, spraying work can be automatically carried out at a constant speed, and spraying of the surface wall is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe spraying technology, specifically a continuous spraying device for steel pipe anti-corrosion construction. Background Technology

[0002] Steel pipes are subject to long-term erosion from soil, moisture, and chemical media during service, making them highly susceptible to corrosion. This corrosion can lead to leaks, failures, and even safety accidents and environmental pollution, causing significant economic losses and social harm. Therefore, corrosion protection of steel pipes is crucial. Currently, steel pipe corrosion protection primarily employs coating technology, which involves applying anti-corrosion coatings to the surface of the steel pipe to form an isolation barrier, preventing corrosive media from contacting the steel pipe substrate.

[0003] In the process of anti-corrosion spraying of steel pipes, it is necessary to coat not only the outer wall of the steel pipe but also to treat the inner wall with anti-corrosion. Currently, the commonly used TNQ-2 type sprayer in the industry operates by spraying from the inside of the steel pipe to the other end. However, this method has significant shortcomings in the initial conveying stage: for steel pipes with larger diameters, although manual entry and pushing are possible, for steel pipes with too small a diameter that cannot be manually accessed, auxiliary tools are required to push the sprayer to the other end. This process is cumbersome, greatly affects spraying efficiency, and is time-consuming and labor-intensive, making it unsuitable for achieving efficient and continuous anti-corrosion spraying of the inner wall of steel pipes. Therefore, how to provide a device that can conveniently and efficiently perform continuous anti-corrosion spraying of the inner and outer walls of steel pipes has become an urgent technical problem to be solved. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a continuous spraying device for anti-corrosion construction of steel pipes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a continuous spraying device for anti-corrosion construction of steel pipes, comprising a support pipe, a movable disc, a connecting ring, a connecting plate, and a nozzle. The left end of the support pipe has a threaded surface, the left end of the support pipe is fitted with a movable disc, the right wall of the movable disc is fixedly connected to a connecting ring, the right end of the support pipe is fixedly installed with a connecting plate, and the right end of the connecting plate is provided with a nozzle.

[0006] The outer wall of the support tube is fixedly connected to four sets of connecting plates. The four sets of connecting plates are movably installed with rotating shafts and the rotating shafts are sleeved with first support rods. The outer walls of the two sets of first support rods are respectively provided with movable grooves. The left end of the connecting plate is movably connected to two sets of second support rods.

[0007] An automatic wheel assembly is provided at the lower end of the second support rod. The automatic wheel assembly includes a walking wheel, a first bevel gear, a fixed plate, a rotating shaft, a first limiting shaft, a first bevel gear, a micro motor, a second limiting shaft, and a second bevel gear. Two sets of fixed plates are fixedly connected to the lower wall of the second support rod. A first bevel gear is fixedly installed on the right wall of the walking wheel. The walking wheel is rotatably installed between the two sets of fixed plates via a rotating shaft. A square groove is opened on the outer wall of the fixed plate. A first bevel gear is installed inside the square groove. The two ends of the first bevel gear are connected to the first limiting shaft. A second bevel gear is fixedly connected to the upper end of the first limiting shaft. A second bevel gear is vertically and alternately arranged on the right end of the second bevel gear. A micro motor is provided on the right end of the second bevel gear.

[0008] As described above, two sets of movable handles are fixedly connected to the outer wall of the movable disc, and the outer wall of the movable handles is provided with anti-slip texture.

[0009] As described above, the outer wall of the fixing plate is provided with a connecting groove, and the two ends of the first limiting shaft are locked and installed in the connecting groove.

[0010] As mentioned above, the micro motor is covered with a protective shell.

[0011] As mentioned above, the left end of the second bevel gear is connected to a second limiting shaft, which is fitted into a slot on the outer wall of the second support rod.

[0012] As mentioned above, the interior of the second support rod and the support tube is hollow. The control circuit is installed inside the second support rod and the support tube and connected to the micro motor. The control circuit passes through the slot in the surface wall of the support tube and exits from the left end of the support tube.

[0013] Compared with existing technologies, this continuous spraying device for steel pipe anti-corrosion construction has the following advantages:

[0014] I. This utility model, through the structure of the automatic wheel assembly, can achieve automatic movement through circuit control, avoiding the need for manual back-and-forth transport of the entire device at both ends when spraying the inner wall of the steel pipe, thus saving overall spraying time and achieving efficient spraying operations.

[0015] II. This utility model provides a new device that supports continuous anti-corrosion spraying on the inner wall of steel pipes. Furthermore, it eliminates the need for manual dragging during spraying and can automatically and uniformly carry out the spraying work, which helps to make the sprayed surface more uniform.

[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the automatic wheel assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal cross-section of the automatic wheel assembly of this utility model.

[0021] In the diagram: 1. Support tube; 101. Movable disc; 102. Connecting ring; 103. Connecting disc; 104. Nozzle; 2. Connecting plate; 201. First support rod; 202. Movable groove; 203. Second support rod; 204. Walking wheel; 205. First bevel gear; 206. Fixed plate; 207. Rotating shaft; 208. First limiting shaft; 209. First bevel gear; 210. Protective shell; 211. Micro motor; 212. Second limiting shaft; 213. Second bevel gear; 214. Second bevel gear. 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 protection scope of the present utility model.

[0023] like Figure 1-4 As shown, this utility model provides a technical solution: a continuous spraying device for anti-corrosion construction of steel pipes, including a support pipe 1, a movable disc 101, a connecting ring 102, a connecting disc 103 and a nozzle 104. The left end of the support pipe 1 has a threaded surface, the movable disc 101 is sleeved on the left end of the support pipe 1, the connecting ring 102 is fixedly connected to the right wall of the movable disc 101, the connecting disc 103 is fixedly installed on the right end of the support pipe 1, and the nozzle 104 is provided on the right end of the connecting disc 103.

[0024] Four sets of connecting plates 2 are fixedly connected to the outer wall of the support tube 1. A rotating shaft is movably installed inside the four sets of connecting plates 2, and a first support rod 201 is sleeved on the outside of the rotating shaft. Movable grooves 202 are opened on the outer walls of the two sets of first support rods 201 respectively. Two sets of second support rods 203 are movably connected to the left end of the connecting plate 103.

[0025] An automatic wheel assembly is provided at the lower end of the second support rod 203. The automatic wheel assembly includes a walking wheel 204, a first bevel gear 205, a fixed plate 206, a rotating shaft 207, a first limiting shaft 208, a first bevel gear 209, a micro motor 211, a second limiting shaft 212, and a second bevel gear 213. Two sets of fixed plates 206 are fixedly connected to the lower wall of the second support rod 203. The first bevel gear 205 is fixedly installed on the right wall of the walking wheel 204. The walking wheel 204 is rotatably installed between the two sets of fixed plates 206 through the rotating shaft 207. A square groove is opened on the outer wall of the fixed plate 206. The first bevel gear 209 is installed inside the square groove. The two ends of the first bevel gear 209 are connected to the first limiting shaft 208. The upper end of the first limiting shaft 208 is fixedly connected to the second bevel gear 214. The right end of the second bevel gear 214 is vertically and alternately arranged with the second bevel gear 213. The right end of the second bevel gear 213 is provided with the micro motor 211.

[0026] Based on the overall structure of the device, the automatic wheel assembly enables automatic movement via circuit control, avoiding the need for manual back-and-forth transport of the entire device at both ends when spraying the inner wall of the steel pipe. This saves overall spraying time, achieves efficient spraying operations, and eliminates the need for manual dragging during spraying, allowing for automatic and uniform spraying, which helps to make the sprayed surface more even.

[0027] like Figure 1 As shown, two sets of movable handles are fixedly connected to the outer wall of the movable plate 101, and the outer wall of the movable handles is provided with anti-slip texture.

[0028] By creating anti-slip textures on the outer wall of the handle, it can prevent slipping when gripping.

[0029] like Figure 3 As shown, the outer wall of the fixing plate 206 is provided with a connecting groove, and the two ends of the first limiting shaft 208 are locked and installed in the connecting groove.

[0030] By mounting the first limiting shaft 208 in the connecting groove opened on the outer wall of the fixed plate 206, the second bevel gear 214 at the upper end can drive the first bevel gear 209 to rotate through the first limiting shaft 208, thereby achieving the transmission effect.

[0031] like Figure 4 As shown, the micro motor 211 is covered with a protective shell 210.

[0032] By covering the micro motor 211 with a protective shell 210, the micro motor 211 can be protected from impacts and other damage.

[0033] like Figure 4As shown, the left end of the second bevel gear 213 is connected to a second limiting shaft 212, which is installed in a slot on the outer wall of the second support rod 203.

[0034] By mounting the second limiting shaft 212 in a slot on the outer wall of the second support rod 203, the second limiting shaft 212 can support the second bevel gear 213.

[0035] like Figure 1 As shown, the interior of the second support rod 203 and the support tube 1 is hollow. The control circuit is installed inside the second support rod 203 and the support tube 1 and connected to the micro motor 211. The control circuit passes through the slot in the surface wall of the support tube 1 and exits from the left end of the support tube 1.

[0036] By passing the wire through the interior of the second support rod 203 and the connecting plate 103, the wire can be protected, and the operation of the micro motor 211 can be controlled through the wire.

[0037] Working principle: When it is necessary to spray the inner wall of the steel pipe, the rotating handle is turned first to rotate the movable disk 101 according to the inner diameter of the steel pipe, thereby driving the first support rod 201 to move and adjust the support surface of the entire device to adapt to different inner diameters of steel pipes. When it is necessary to transport from the starting end to the other end, the micro motor 211 is controlled by the circuit to operate. When the micro motor 211 operates, it drives the second limit shaft 212 to rotate. The second limit shaft 212 drives the second bevel gear 213 to rotate. The second bevel gear 213 and the second bevel gear 214 intersect, thereby driving the first limit shaft 208 and the first bevel gear 209 to rotate, thereby causing the first bevel gear 209 and the first bevel gear 205 to intersect, thereby driving the traveling wheel 204 to rotate. Because the entire device is supported on the inner wall of the steel pipe by the traveling wheel 204, the automatic movement of the entire device can be realized.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous spraying device for steel pipe anticorrosion construction, comprising a support pipe (1), a movable disc (101), a connecting ring (102), a connecting disc (103) and a spray head (104), the left end surface wall of the support pipe (1) is thread-shaped, the left end of the support pipe (1) is sleeved with the movable disc (101), the right wall of the movable disc (101) is fixedly connected with the connecting ring (102), the right end of the support pipe (1) is fixedly installed with the connecting disc (103), and the right end of the connecting disc (103) is provided with the spray head (104). characterized in that The outer wall of the support pipe (1) is fixedly connected with four groups of connecting plates (2), the inside of the four groups of connecting plates (2) is movably installed with rotating shafts, and the outside of the rotating shafts is sleeved with first support rods (201), the outer walls of two groups of the first support rods (201) are respectively provided with movable grooves (202), and the left end of the connecting disc (103) is movably connected with two groups of second support rods (203). The lower end of the second support rod (203) is provided with an automatic wheel assembly, the automatic wheel assembly comprises a traveling wheel (204), a first bevel gear (205), a fixed plate (206), a rotating shaft (207), a first limiting shaft (208), a first bevel gear (209), a micro motor (211), a second limiting shaft (212) and a second bevel gear (213), the lower wall of the second support rod (203) is fixedly connected with two groups of fixed plates (206), the right wall of the traveling wheel (204) is fixedly installed with the first bevel gear (205), the traveling wheel (204) is rotatably installed between the two groups of fixed plates (206) through the rotating shaft (207), a square groove is formed in the outer wall of the fixed plate (206), the first bevel gear (209) is installed in the square groove, the two ends of the first bevel gear (209) are connected with the first limiting shaft (208), the upper end of the first limiting shaft (208) is fixedly connected with a second bevel gear (214), the right end of the second bevel gear (214) is vertically staggered with the second bevel gear (213), and the right end of the second bevel gear (213) is provided with the micro motor (211).

2. The continuous spraying device for steel pipe anticorrosion construction according to claim 1, characterized in that: The outer wall of the movable disc (101) is fixedly connected with two groups of movable handles, and the outer wall of the movable handle is provided with anti-skid lines.

3. The continuous spraying device for steel pipe anticorrosion construction of claim 1, characterized in that: A connecting groove is formed in the outer wall of the fixed plate (206), and the two ends of the first limiting shaft (208) are clamped and installed in the connecting groove.

4. The continuous spraying device for steel pipe anticorrosion construction of claim 1, characterized in that: The outside of the micro motor (211) is sleeved with a protective shell (210).

5. The continuous spraying device for steel pipe anticorrosion construction of claim 1, characterized in that: The left end of the second bevel gear (213) is connected with the second limiting shaft (212), and the second limiting shaft (212) is clamped and installed in the groove hole formed in the outer wall of the second support rod (203).

6. The continuous coating device for steel pipe anticorrosion construction of claim 1, wherein: The interiors of the second support rod (203) and the support pipe (1) are hollow, control lines are installed in the interiors of the second support rod (203) and the support pipe (1) and connected with the micro motor (211), the control lines pass through the groove hole in the surface wall of the support pipe (1) and are led out from the left end of the support pipe (1).

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