An inner tube spraying device for small-bore pressure steel pipe weld

Abstract

The utility model discloses a kind of inner tube spraying equipment for small-bore pressure steel pipe weld, belong to pressure pipeline spraying technical field, including paint tank, the top of paint tank is fixedly installed with two vertical plate, the side of paint tank is provided with hose, paint tank is connected with hose by conveying pump, the end of hose close to conveying pump is fixedly installed with second valve, the outside of two vertical plate is provided with rotary clamping device, and the side of rotary clamping device is fixedly installed with drying treatment device in edge position;The utility model is through being provided with rotary clamping device, so that staff can be rotated and sprayed inside small-bore pressure steel pipe when needed by the cooperation of screw rod and feed pipe etc. structure, to improve the effect of spraying, and staff can be fixed by the cooperation of electric telescopic rod and clamping block etc. structure when needed to steel pipe, to improve the working capacity of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of pressure pipeline spraying technology, specifically relating to an inner pipe spraying device for weld seams of small-diameter pressure steel pipes. Background Technology

[0002] Pressure pipelines are tubular devices used to transport gases or liquids under pressure. Pressure steel pipes can be classified according to different working conditions. Based on whether the pipe is in direct contact with the atmosphere, they can be divided into open-air and buried types. In terms of structure and materials, they can be classified as welded, riveted, or seamless steel pipes. Based on the continuity of the pipeline, they can be divided into segmented steel pipes with expansion joints and continuous steel pipes without expansion joints.

[0003] Existing equipment for spraying inner pipes for welded seams of small-diameter pressure steel pipes has poor spraying effect and is inconvenient for fixing the steel pipe, thus reducing the equipment's working capacity; it is also inconvenient to accelerate the solidification speed of the sprayed coating when needed, thus reducing the equipment's practicality. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides an inner pipe spraying device for weld seams of small-diameter pressure steel pipes, characterized by high working capacity and strong practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inner pipe spraying device for welded seams of small-diameter pressure steel pipes, comprising a paint tank, two upright plates fixedly installed above the paint tank, a flexible hose provided on one side of the paint tank, the paint tank and the flexible hose being connected by a feed pump, a second valve fixedly installed at one end of the flexible hose near the feed pump, a rotating clamping device provided on the outer side of the two upright plates, and a drying treatment device fixedly installed on one side of the rotating clamping device near the edge.

[0006] Preferably, the rotary clamping device includes a fixed cylinder, a feeding pipe, a nozzle, a clamping assembly, a lead screw, a moving plate, a lower gear, a first motor, a connecting box, an upper gear, and a second motor. A fixed cylinder is fixedly installed above the two upright plates. A first motor is fixedly installed inside the fixed cylinder. A lead screw is fixedly connected to one side of the output end of the first motor. A moving plate is threaded onto the outside of the lead screw and located inside the fixed cylinder. A feeding pipe is installed on the inside of the moving plate and above the lead screw via a bearing. A connecting box is fixedly connected to the upper end of the hose near the feeding pipe. A lower gear is fixedly installed on the outside of the feeding pipe and between the connecting box and the moving plate. A second motor is fixedly installed on one side of the moving plate and above the feeding pipe. An upper gear is fixedly installed on the outside of the output end of the second motor and above the lower gear. Nozzles are fixedly installed on both the upper and lower sides of the feeding pipe and on the side of the moving plate away from the second motor. Two clamping assemblies are fixedly installed on the side of the fixed cylinder away from the hose.

[0007] Preferably, the inner side of the fixed cylinder and the outer side of the movable plate are in contact with each other.

[0008] Preferably, the clamping assembly includes clamping blocks, support plates, and an electric telescopic rod. Two support plates are fixedly installed on the side of the fixed cylinder away from the hose, and two clamping blocks are arranged between the two support plates. The support plates and clamping blocks are connected by an electric telescopic rod.

[0009] Preferably, the drying device includes a heating box, a connecting pipe, heating rods, and a fan. The heating box is located diagonally above the connecting box, and the connecting box and the heating box are connected by the connecting pipe. Multiple heating rods are fixedly installed on the inner side of the heating box, and a fan is fixedly installed on the side of the heating box away from the connecting pipe.

[0010] Preferably, the drying device further includes a first valve, which is fixedly installed at one end of the connecting pipe near the heating box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, by setting up a rotating clamping device, enables workers to perform rotating spraying work on the inside of small-diameter pressure steel pipes when needed, through the cooperation of screw and conveying pipe, thereby improving the spraying effect. Furthermore, workers can fix the steel pipes when needed through the cooperation of electric telescopic rod and clamping blocks, thereby improving the working capacity of the equipment.

[0013] 2. By setting up a drying device, this utility model enables workers to dry the sprayed paint when needed using a combination of a fan and an electric heating rod, thereby accelerating the solidification speed of the paint, better meeting the work needs in different situations, and thus improving the practicality of the equipment. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a three-dimensional sectional view of the present invention;

[0016] Figure 3 This is a perspective sectional view of the rotary clamping device of this utility model;

[0017] Figure 4 This is a three-dimensional sectional view of the drying treatment device of this utility model.

[0018] In the diagram: 1. Paint tank; 2. Vertical plate; 3. Rotary clamping device; 301. Fixed cylinder; 302. Material conveying pipe; 303. Spray nozzle; 304. Clamping assembly; 3041. Clamping block; 3042. Support plate; 3043. Electric telescopic rod; 305. Lead screw; 306. Moving plate; 307. Lower gear; 308. First motor; 309. Connecting box; 310. Upper gear; 311. Second motor; 4. Drying treatment device; 41. Heating box; 42. First valve; 43. Connecting pipe; 44. Electric heating rod; 45. Fan; 5. Hose; 6. Second valve; 7. Material pump. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] Please see Figure 1-4 The present invention provides the following technical solution: an inner pipe spraying device for weld seams of small-diameter pressure steel pipes, including a paint tank 1, two upright plates 2 fixedly installed on the top of the paint tank 1, a hose 5 provided on one side of the paint tank 1, the paint tank 1 and the hose 5 being connected by a feed pump 7, a second valve 6 fixedly installed on one end of the hose 5 near the feed pump 7, a rotating clamping device 3 provided on the outer side of the two upright plates 2, and a drying treatment device 4 fixedly installed on one side of the rotating clamping device 3 near the edge.

[0022] Specifically, the rotary clamping device 3 includes a fixed cylinder 301, a feeding pipe 302, a nozzle 303, a clamping assembly 304, a lead screw 305, a moving plate 306, a lower gear 307, a first motor 308, a connecting box 309, an upper gear 310, and a second motor 311. The fixed cylinder 301 is fixedly installed above the two vertical plates 2. The first motor 308 is fixedly installed inside the fixed cylinder 301. A lead screw 305 is fixedly connected to one side of the output end of the first motor 308. A moving plate 306 is threadedly installed on the outer side of the lead screw 305 and inside the fixed cylinder 301. A feeding pipe is installed on the inner side of the moving plate 306 and above the lead screw 305 via a bearing. A connecting box 309 is fixedly connected to the upper end of the conveying pipe 302 and the hose 5 near the side of the conveying pipe 302. A lower gear 307 is fixedly installed on the outside of the conveying pipe 302 and between the connecting box 309 and the moving plate 306. A second motor 311 is fixedly installed on one side of the moving plate 306 and above the conveying pipe 302. An upper gear 310 is fixedly installed on the outside of the output end of the second motor 311 and above the lower gear 307. Nozzles 303 are fixedly installed on both the upper and lower sides of the conveying pipe 302 and on the side of the moving plate 306 away from the second motor 311. Two clamping components 304 are fixedly installed on the side of the fixed cylinder 301 away from the hose 5.

[0023] By adopting the above technical solution, workers can perform rotary spraying on the inside of small-diameter pressure steel pipes when needed, through the cooperation of structures such as the lead screw 305 and the material conveying pipe 302, thereby improving the spraying effect.

[0024] Specifically, the inner side of the fixed cylinder 301 and the outer side of the movable plate 306 are in contact with each other.

[0025] By adopting the above technical solution, the equipment can guide the movement of the moving plate 306 through the fixed cylinder 301, thereby preventing the moving plate 306 from deviating during the movement and ensuring the normal operation of the work.

[0026] Specifically, the clamping assembly 304 includes clamping blocks 3041, support plates 3042, and electric telescopic rods 3043. Two support plates 3042 are fixedly installed on the side of the fixed cylinder 301 away from the hose 5. Two clamping blocks 3041 are arranged between the two support plates 3042. The support plates 3042 and the clamping blocks 3041 are connected by electric telescopic rods 3043.

[0027] By adopting the above technical solution, workers can fix the steel pipe when needed by using the electric telescopic rod 3043 and clamping block 3041, thereby preventing the steel pipe from shifting during the spraying process.

[0028] In this embodiment, when it is necessary to spray the inner pipe of the weld seam of a small-diameter pressure steel pipe, an external power supply is connected. The worker places the steel pipe between the clamping blocks 3041 in the two clamping components 304 of the two rotating clamping devices 3. The electric telescopic rods 3043 on the two support plates 3042 are activated, thereby driving the two clamping blocks 3041 to clamp and fix the steel pipe. Then, the paint is poured into the paint tank 1, the second valve 6 is opened, and the first motor 308 is started, thereby driving the lead screw 305 to rotate. The lead screw 305 is threadedly connected to the moving plate 306, and the outer side of the moving plate 306 is in contact with the inner side of the fixed cylinder 301. Therefore, the lead screw 305 drives the moving plate 306 and other structures to move, thereby driving the conveying pipe 3 02 and the two nozzles 303 move. When the two nozzles 303 enter the steel pipe, the second motor 311 and the feed pump 7 are started. The second motor 311 drives the upper gear 310 to rotate, which in turn drives the feed pipe 302 and the two nozzles 303 to rotate through the lower gear 307. The feed pump 7 draws paint from the paint tank 1 and sends it into the hose 5. Then the paint passes through the connecting box 309 and enters the rotating feed pipe 302. Then it is sprayed out by the two rotating nozzles 303 to the inside of the steel pipe. At the same time, the screw 305 also drives the nozzles 303 and other structures to move, thereby spraying various parts of the inside of the steel pipe. After the spraying is completed, the feed pump 7, the first motor 308, the second motor 311 and the second valve 6 are closed. The upright plate 2 plays a supporting role.

[0029] Example 2

[0030] The difference between this embodiment and embodiment 1 is that the drying device 4 includes a heating box 41, a connecting pipe 43, electric heating rods 44 and a fan 45. The heating box 41 is arranged diagonally above the connecting box 309. The connecting box 309 and the heating box 41 are connected by the connecting pipe 43. Multiple electric heating rods 44 are fixedly installed on the inner side of the heating box 41. The fan 45 is fixedly installed on the side of the heating box 41 away from the connecting pipe 43.

[0031] By adopting the above technical solution, workers can dry the sprayed paint when needed by using the combination of the fan 45 and the electric heating rod 44, thereby accelerating the solidification speed of the paint and better meeting the work needs in different situations.

[0032] Specifically, the drying device 4 also includes a first valve 42, and the first valve 42 is fixedly installed at one end of the connecting pipe 43 near the heating box 41.

[0033] By adopting the above technical solution, the staff can prevent the heating box 41 from communicating with the connecting box 309 by using the first valve 42 when needed, thereby preventing the paint from entering the interior of the heating box 41 and ensuring the normal operation of the work.

[0034] In this embodiment, when it is necessary to accelerate the solidification speed of the coating inside the pipe, the second valve 6 must be closed, and then the first valve 42 in the drying treatment device 4 is opened. The fan 45 and each heating rod 44 are started. The fan 45 sends air into the heating box 41, and then each heating rod 44 heats the air. The hot air then passes through the connecting pipe 43 and enters the conveying pipe 302. The first motor 308 and the second motor 311 are started, thereby driving the conveying pipe 302 and the two nozzles 303 to rotate and move inside the steel pipe. The hot air is sprayed out from the two nozzles 303, thereby drying the coating and accelerating its solidification speed, thus better meeting the working needs in different situations.

[0035] The working principle and usage process of this utility model are as follows: When it is necessary to spray the inner pipe of the weld seam of a small-diameter pressure steel pipe, connect the external power supply, and the worker places the steel pipe between the clamping blocks 3041 in the two clamping components 304 of the two rotating clamping devices 3. The electric telescopic rods 3043 on the two support plates 3042 are activated, thereby driving the two clamping blocks 3041 to clamp and fix the steel pipe. Then, the paint is poured into the paint tank 1, the second valve 6 is opened, and the first motor 308 is started, thereby driving the lead screw 305 to rotate. The screw 305 is threadedly connected to the movable plate 306, and the outer side of the movable plate 306 is in contact with the inner side of the fixed cylinder 301. Therefore, the screw 305 drives the movable plate 306 and other structures to move, which in turn drives the conveying pipe 302 and the two nozzles 303 to move. When the two nozzles 303 enter the steel pipe, the second motor 311 and the conveying pump 7 are started. The second motor 311 drives the upper gear 310 to rotate, which in turn drives the conveying pipe 302 and the two nozzles 303 to rotate through the lower gear 307. The conveying pump 7 draws paint from the paint tank 1. The paint is fed into the hose 5, then passes through the connecting box 309 into the rotating feed pipe 302, and is then sprayed out by the two rotating nozzles 303 to the inside of the steel pipe. Simultaneously, the lead screw 305 drives the nozzles 303 and other structures to move, thus spraying various parts of the inside of the steel pipe. After spraying is complete, the feed pump 7, the first motor 308, the second motor 311, and the second valve 6 are shut off. The upright plate 2 provides support. When it is necessary to accelerate the solidification speed of the paint inside the pipe, the second valve 6 must be closed, and then the drying treatment device should be opened. The first valve 42 in position 4 starts the fan 45 and each heating rod 44. The fan 45 sends air into the heating box 41, and then each heating rod 44 heats the air. The hot air then passes through the connecting pipe 43 and enters the conveying pipe 302. The first motor 308 and the second motor 311 are started, thereby driving the conveying pipe 302 and the two nozzles 303 to rotate and move inside the steel pipe. The hot air is sprayed out from the two nozzles 303, thereby drying the coating and accelerating its solidification speed, which better meets the working needs under different conditions.

[0036] 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. An inner pipe spraying device for welded seams of small-diameter pressure steel pipes, comprising a paint tank (1), two upright plates (2) fixedly installed above the paint tank (1), a flexible hose (5) provided on one side of the paint tank (1), the paint tank (1) and the flexible hose (5) being connected by a feed pump (7), and a second valve (6) fixedly installed at one end of the flexible hose (5) near the feed pump (7), characterized in that: A rotating clamping device (3) is provided on the outer side of the two upright plates (2), and a drying device (4) is fixedly installed on one side of the rotating clamping device (3) near the edge.

2. The inner pipe spraying equipment for welded seams of small-diameter pressure steel pipes according to claim 1, characterized in that: The rotary clamping device (3) includes a fixed cylinder (301), a conveying pipe (302), a nozzle (303), a clamping assembly (304), a lead screw (305), a moving plate (306), a lower gear (307), a first motor (308), a connecting box (309), an upper gear (310), and a second motor (311). The fixed cylinder (301) is fixedly installed above the two upright plates (2). The first motor (308) is fixedly installed inside the fixed cylinder (301). The lead screw (305) is fixedly connected to one side of the output end of the first motor (308). The moving plate (306) is threadedly installed on the outer side of the lead screw (305) and inside the fixed cylinder (301). The conveying pipe (302) is installed on the inner side of the moving plate (306) and above the lead screw (305) via a bearing. A connecting box (309) is fixedly connected to the upper end of the material pipe (302) and the hose (5) near the side of the material pipe (302). A lower gear (307) is fixedly installed on the outside of the material pipe (302) and between the connecting box (309) and the moving plate (306). A second motor (311) is fixedly installed on one side of the moving plate (306) and above the material pipe (302). An upper gear (310) is fixedly installed on the outside of the output end of the second motor (311) and above the lower gear (307). Nozzles (303) are fixedly installed on both the upper and lower sides of the material pipe (302) and on the side of the moving plate (306) away from the second motor (311). Two clamping components (304) are fixedly installed on the side of the fixed cylinder (301) away from the hose (5).

3. The inner pipe spraying equipment for welded seams of small-diameter pressure steel pipes according to claim 2, characterized in that: The inner side of the fixed cylinder (301) and the outer side of the movable plate (306) are in contact with each other.

4. The inner pipe spraying equipment for weld seams of small-diameter pressure steel pipes according to claim 2, characterized in that: The clamping assembly (304) includes clamping blocks (3041), support plates (3042), and an electric telescopic rod (3043). Two support plates (3042) are fixedly installed on the side of the fixed cylinder (301) away from the hose (5). Two clamping blocks (3041) are arranged between the two support plates (3042). The support plates (3042) and the clamping blocks (3041) are connected by the electric telescopic rod (3043).

5. The inner pipe spraying equipment for welded seams of small-diameter pressure steel pipes according to claim 2, characterized in that: The drying device (4) includes a heating box (41), a connecting pipe (43), electric heating rods (44) and a fan (45). The heating box (41) is arranged diagonally above the connecting box (309). The connecting box (309) and the heating box (41) are connected by the connecting pipe (43). Multiple electric heating rods (44) are fixedly installed on the inner side of the heating box (41). The fan (45) is fixedly installed on the side of the heating box (41) away from the connecting pipe (43).

6. The inner pipe spraying equipment for welded seams of small-diameter pressure steel pipes according to claim 5, characterized in that: The drying device (4) also includes a first valve (42), and the first valve (42) is fixedly installed at one end of the connecting pipe (43) near the heating box (41).

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