CN209476516U - A spray gun for cleaning the inner wall of seamless steel pipe - Google Patents

Abstract

The utility model discloses a cleaning spray gun for the inner wall of a seamless steel pipe, which belongs to the technical field of steel and iron and comprises a spray gun rack and a spray gun; the spray gun frame comprises two side brackets, a connecting plate and two V-shaped clamping plates, a spray gun hole is formed in the middle of the connecting plate, two sides of the connecting plate are fixedly connected with the side brackets respectively, and the side brackets are connected with the V-shaped clamping plates; the spray gun comprises a hollow spray gun rod, a brush with through holes at two ends and a brush fixing device; the rear end of the spray gun rod penetrates through the spray gun hole to be connected with a high-pressure water pump pipeline; the hairbrush fixing device is characterized in that the hairbrush is a scrubbing brush with a net-shaped plate surface, and a plurality of liquid spraying holes are formed in the position, facing the scrubbing brush, of the spray gun rod. Compared with the prior art have simple structure, reasonable in design's characteristics.

Description

A spray gun for cleaning the inner wall of seamless steel pipe

technical field

The utility model relates to a cleaning spray gun, in particular to a device suitable for cleaning the inner wall of a seamless steel pipe.

Background technique

After the seamless steel pipe is deformed by cold working, some impurities such as stains, impurities and oil will remain on the inner wall surface. If these impurities are not removed, the inner and outer walls of the steel pipe will be eroded, which will easily cause damage to the steel pipe, resulting in a decline in the quality of the steel pipe and reducing the service life of the steel pipe. Therefore, the cleaning of the steel pipe is essential and very important. The cleaning of the outer wall is relatively easy, and the cleaning of the inner wall is usually carried out at the entrance of the steel pipe with an ordinary straight-through spray gun or nozzle to spray the cleaning liquid on the inner wall of the steel pipe. The existing steel pipe cleaning method is aimed at the tube cavity instead of the tube wall, so the cleaning effect is poor, the waste of high-pressure cleaning fluid is relatively large, the cleaning efficiency is low, and the simple hydraulic impact cannot effectively remove stubborn stains , affecting the quality of the final product.

Utility model content

The technical task of the utility model is to provide a cleaning spray gun suitable for the inner wall of seamless steel pipes for the above deficiencies in the prior art.

The technical scheme for solving the technical problems of the utility model is: comprising a spray gun frame and a spray gun; the described spray gun frame includes two side brackets, a connecting plate and two V-shaped splints, the middle of the connecting plate has a spray gun hole, and the connecting plate The two sides of each are respectively fixedly connected with side supports, and the side supports are connected with V-shaped splints; the spray gun includes a hollow spray gun rod, a brush with through holes at both ends and a brush fixing device; the rear end of the spray gun rod passes through The spray gun hole is connected with the high-pressure water pump pipeline; the brush fixing device has two sets at the front and rear, respectively fixing the front and rear ends of the brush, and the brush fixing device includes a fixing ring, a threaded rod, a compression spring and a tightening nut The fixed ring is installed on the front part of the spray gun rod, one end of the threaded rod is affixed to the fixed ring, the two ends of the brush are respectively provided with a through hole, and the other end of the threaded rod passes through the compression spring and the through hole of the hair brush successively. The hole is threadedly connected with the tightening nut, and the tightening nut pushes the brush against the compression spring; the brush is a scrub brush with a mesh-like surface, and the position of the spray gun rod facing the scrub brush has a plurality of liquid spray holes.

The middle part of the above-mentioned V-shaped splint has a through hole matching the shape of the side bracket, and the side bracket is inserted into the through-hole; the two ends of the V-shaped splint are respectively provided with threaded holes, and the threaded holes on the same side pass through Tighten the bolted connection.

The connecting plate is provided with a guide sleeve, the through hole on the guide sleeve communicates with the hole of the spray chamber, and the spray gun passes through the guide sleeve and the spray gun hole in turn.

The above-mentioned spray gun rod is a telescopic rod.

Compared with the prior art, the utility model has the following prominent beneficial effects:

1. This device can realize hydraulic flushing and physical scrubbing for the inner wall of the steel pipe, with good cleaning effect and high cleaning efficiency;

2. It is easy to operate, saves more cleaning fluid, has low overall cost, and is very environmentally friendly.

Description of drawings

FIG. 1 is a front view of Embodiment 1. FIG.

FIG. 2 is a left side view of Embodiment 1. FIG.

FIG. 3 is a plan view of Embodiment 1. FIG.

FIG. 4 is a schematic structural view of Embodiment 2.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments of the description. For a better description, the part that goes deep into the steel pipe is the front, and the reverse is the back.

As shown in Figures 1 to 3, the utility model comprises a spray gun frame and a spray gun.

Described spray gun rack comprises two side brackets 3, connecting plate 2 and two V-shaped splints 11, and spray gun hole is arranged in the middle of described connecting plate 2, and the both sides of connecting plate 2 are fixedly connected with side bracket 3 respectively, and described The side bracket 3 is connected with the V-shaped splint 11. The connection method in embodiment 1 is that the middle part of the V-shaped splint 11 has a through hole matching the shape of the side bracket 3. When installing, the side bracket 3 Insert it into the said through hole. Both ends of the V-shaped splint 11 have threaded holes, and the threaded holes on the same side are connected by fastening bolts 15 to be fixed on the outer wall of the steel pipe.

In order to increase the stability of the spray gun, in the optimal solution, the connecting plate 2 is provided with a guide sleeve 16, and the guide sleeve 16 is provided with an axial through hole, and the through hole on the guide sleeve 16 is The hole communicates with the hole of the spray chamber, and the spray gun passes through the through hole of the guide sleeve and the spray gun hole in turn, thereby preventing the spray gun from shaking inside.

The spray gun includes a hollow spray gun rod 9, a brush 10 with through holes at both ends and a brush fixing device.

The rear end of the spray gun rod 9 passes through the spray gun hole and is connected with the high-pressure water pump pipeline. In the optimized solution, the spray gun rod 9 is a telescopic rod.

Described hairbrush fixing device has front and back two sets, fixes the front and back ends of hairbrush respectively, and described hairbrush fixing device comprises fixing ring 4, threaded rod 5, compression spring 7 and tightening nut 6. The fixed ring 4 is installed on the front part of the spray gun rod 9, one end of the threaded rod 5 is affixed to the fixed ring 4, the two ends of the brush 10 are respectively provided with a through hole, and the other end of the threaded rod 5 passes through the compression spring successively 7. The through hole of the brush 10 is threadedly connected with the tightening nut 6. The tightening nut 6 pushes the brush 10 against the compression spring 7. By rotating the tightening nut 6, the position of the brush 10 on the threaded rod 5 can be adjusted. position on the By replacing the brushes 10 with different bristle lengths and adjusting the position of the tightening nut 6, the steel pipes with different inner diameters and different degrees of stains can be adapted. For the convenience of drawing, the pipelines and high-pressure water pumps mentioned above are not shown in the accompanying drawings.

The brush 10 is a mesh-shaped scrub brush on the plate surface. There are a plurality of liquid spray holes at the position of the spray gun rod 9 facing the scrub brush. The high-pressure cleaning liquid can pass through the mesh scrub brush to reach the pipe wall for cleaning.

When in use, the V-shaped splint 11 is fixed on the outer wall of the steel pipe by the fastening bolt 15, and then the two side supports 3 are inserted in the through holes of the V-shaped splint 11, and the spray gun frame is installed. The spray gun is inserted into the spray gun hole, the rear end of the spray gun rod 9 is connected with the high-pressure water pump pipeline, and the spray gun rod 9 is manually rotated while probing inward to realize hydraulic flushing and physical brushing of the inner wall of the steel pipe.

Embodiment 1 is applicable to steel pipes with a fixed pipe diameter and a single specification.

Embodiment 2 is applicable to steel pipes with different pipe diameters, especially steel pipes with large pipe diameters. The installation of the spray gun frame and the rotation and advancement of the spray gun rod are relatively laborious. Embodiment 2 improves the structure and connection relationship between the side bracket 3 and the V-shaped splint 11 in Embodiment 1. As shown in Figure 4, in embodiment 2, the front end of both sides support 3 is provided with guide bar 12 and two-way lead screw 13, and wherein the right end of one side support 3 is provided with a through hole, and one end of described two-way lead screw 13 is connected with One side support 3 is rotationally connected, and the other end passes through the through hole of the other side support 3 and is connected with the handle 14. One end of the V-shaped splint 11 is provided with a threaded hole, and the other end is provided with a guide hole. The guide rod 12 passes through the guide hole of the V-shaped splint 11, and the two ends of the two-way screw 13 are threadedly connected with the threaded holes of a V-shaped splint 11 respectively, and the two V-shaped splints 11 are arranged oppositely.

Because the pipe diameter is relatively large and it is difficult to rotate, in order to better realize the operation, the rear end of the spray gun rod 9 described in Embodiment 2 is connected with the rocking bar 1, and the rotation of the spray gun rod 9 is realized by the rocking rod 1 .

Rotate handle 14 during use, rotate two-way leading screw 13, make two V-shaped splints 11 clamp seamless steel pipe, install spray gun frame. The spray gun adjusts the length of the spray gun rod 9, inserts it into the spray gun hole in the middle of the connecting plate 2, connects the rear end of the spray gun rod 9 to the high-pressure water pump pipeline, and the manual rocker 1 probes and rotates the spray gun rod 9 to realize hydraulic pressure on the inner wall of the steel pipe. Rinse and physically scrub.

It should be noted that the specific embodiments of the present invention have described the present invention in detail, and for those skilled in the art, it will be obvious to those skilled in the art that it can be carried out without departing from the spirit and scope of the present invention. All changes are within the protection scope of the present utility model.

Claims (4)

1. A seamless steel pipe inner wall cleaning spray gun is characterized in that: it comprises a spray gun frame and a spray gun; the described spray gun frame includes two side supports, connecting plates and two V-shaped splints, and a spray gun hole is arranged in the middle of the described connecting plates , the two sides of the connection plate are fixedly connected with the side brackets respectively, and the side brackets are connected with the V-shaped splint; the spray gun includes a hollow spray gun rod, a brush with through holes at both ends and a brush fixing device; the back of the spray gun rod end passes through the spray gun hole and is connected with the high-pressure water pump pipeline; the described brush fixing device has two sets of front and rear, respectively fixing the front and rear ends of the hair brush, and the described hair brush fixing device includes a fixing ring, a threaded rod, a compression spring and Tighten the nut; the fixing ring is installed on the front part of the spray gun rod, one end of the threaded rod is affixed to the fixing ring, the two ends of the brush are respectively provided with a through hole, and the other end of the threaded rod passes through the compression spring, hair The through hole of the brush is threadedly connected with the tightening nut, and the tightening nut pushes the brush against the compression spring; the brush is a scrub brush with a netted surface, and there are multiple spray guns at the position facing the scrub brush. liquid hole. 2. A spray gun for cleaning the inner wall of seamless steel pipe according to claim 1, characterized in that: the middle part of the V-shaped splint has a through hole matching the shape of the side bracket, and the side bracket is inserted into the In the through hole; the two ends of the V-shaped splint are respectively provided with threaded holes, and the threaded holes on the same side are connected by fastening bolts. 3. A spray gun for cleaning the inner wall of a seamless steel pipe according to claim 1, wherein a guide sleeve is arranged on the connecting plate, and the through hole on the guide sleeve communicates with the spray chamber hole. The spray gun passes through the guide sleeve and the spray gun hole in turn. 4. A spray gun for cleaning the inner wall of a seamless steel pipe according to claim 1, wherein the spray gun rod is a telescopic rod.