Paint spraying device for inner wall of embedded steel pipe

Abstract

The utility model relates to an embedded steel pipe inner wall paint spraying device which comprises a supporting frame, an embedded steel pipe and a paint bucket, the upper end of the supporting frame is higher than the lower end of the supporting frame, a main flow pipe is fixed to the upper end of the supporting frame, and a plurality of branch flow pipes are arranged on the main flow pipe; one side of the main flow pipe is sealed, and the other side of the main flow pipe is connected with the paint pumping device; the paint pumping device pumps paint in the paint bucket into the main flow pipe; the upper end of the pre-embedded steel pipe is fixed with the shunt pipe; the lower end of the embedded steel pipe is connected with a rotating device; a groove is fixed to the lower end of the supporting frame, the lower portion of the embedded steel pipe extends to the position above the groove, one end of the groove is higher than the other end of the groove, and the lower end of the groove extends to the position above the paint bucket. By means of the device, when anti-corrosion construction is conducted on the inner wall of the embedded steel pipe, efficiency is high, cost is low, recycling can be achieved, and the concept of green construction is met.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-corrosion construction of inner walls of pre-buried steel pipes for building electrical installations, in particular to a paint spraying device for inner walls of pre-buried steel pipes. Background Art

[0002] During construction, it is often necessary to pre-embed steel pipes in order to pass electrical lines. The demand for pre-embedded steel pipes is huge, and the quality of pre-embedded steel pipes has a great impact on the relevant functions of the later buildings. If the pre-embedded quality does not meet the standards, it will endanger the life and property safety of the users in the building. Therefore, the quality of the pre-embedded building electrical wire pipe must be guaranteed; when the wire pipe material is a steel conduit (SC welded steel pipe), according to the "Building Electrical Construction Quality Acceptance Code", "the inner wall of the steel conduit should be treated with anti-corrosion, and the outer wall may not be treated with anti-corrosion". The inner wall of the pipeline should be treated with anti-corrosion. The existing practice of inner wall anti-corrosion is to manually inject anti-corrosion paint into the pipeline and shake the pipeline to complete the anti-corrosion work. This method is time-consuming and labor-intensive, and the work efficiency is very low. When there is a large demand for pre-embedded steel pipes, it seriously affects the construction efficiency, and it cannot ensure that the inner wall is in full contact with the anti-corrosion paint. Utility Model Content

[0003] The utility model aims to solve the problem that the anti-corrosion paint on the inner wall of the embedded steel pipe has low construction efficiency and cannot fully contact the inner wall of the steel pipe, thereby providing an anti-corrosion paint with high efficiency, low cost and simple structure.

[0004] The utility model solves the above problems and adopts the following technical solutions:

[0005] The inner wall painting device of the embedded steel pipe includes a support frame, an embedded steel pipe and a paint bucket;

[0006] The upper end of the support frame is higher than the lower end of the support frame, a main flow pipe is fixed on the upper end of the support frame, and a plurality of branch pipes are arranged on the main flow pipe; one side of the main flow pipe is sealed, and the other side of the main flow pipe is connected to the paint extraction device;

[0007] The paint extraction device extracts the paint in the paint bucket into the main flow pipe;

[0008] The upper end of the embedded steel pipe is fixed to the shunt pipe; the lower end of the embedded steel pipe is connected to a rotating device;

[0009] A groove is fixed at the lower end of the support frame, the lower part of the embedded steel pipe extends to the upper part of the groove, one end of the groove is higher than the other end, and the lower end of the groove extends to the upper part of the paint bucket.

[0010] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0011] Through the above device, when carrying out anti-corrosion construction on the inner wall of the embedded steel pipe, the worker only needs to place the embedded steel pipe obliquely on the support frame, connect the upper end to the diverter pipe, and connect the lower end to the roller, and use the paint extraction device to extract the paint in the paint bucket into the main pipe, and then flow to the inside of each embedded steel pipe through the diverter pipe to achieve coverage with anti-corrosion paint; the remaining paint in the embedded steel pipe flows back to the paint bucket through the groove below and can be recycled; the rotating device rotates the steel pipe so that the anti-corrosion paint on the inner wall of the embedded steel pipe flows evenly, and the inner wall is completely covered with anti-corrosion paint; compared with the traditional brushing process, this device has high efficiency, low cost, and can be recycled, which is in line with the concept of green construction.

[0012] As a preferred embodiment, a further technical solution of the utility model is:

[0013] The support frame includes an upper frame and a lower frame, the upper end of the upper frame is fixed with the main pipe, and the rotating device and the groove are fixed on the lower frame. The upper frame and the lower frame are arranged so that the distance between the upper frame and the lower frame is not limited, thereby arbitrarily changing the inclination angle of the embedded steel pipe.

[0014] The paint extraction device comprises a hose, a liquid pump and a main valve 10. One end of the hose is placed in the paint bucket, and the other end is connected to the main pipe through the main valve 10. The middle of the hose is connected to the liquid pump. The paint can be transferred by pumping the paint to the main pipe through a simple liquid pump.

[0015] The rotating device includes a motor, multiple sprocket shafts, a main sprocket, a chain and a roller. The motor drives the main sprocket to rotate. The main sprocket and the front sprocket of the sprocket shaft are meshed with the chain. The rear end of the sprocket shaft is fixed with a roller. The two rollers are butted with the lower end of the embedded steel pipe. The distance between the two rollers is less than the diameter of the embedded steel pipe. The various parts of the rotating device cooperate to realize the rotation of the embedded steel pipe under the premise of simplifying the structure as much as possible, so that the paint can cover the inner wall of the embedded steel pipe more evenly, and the anti-corrosion effect is better.

[0016] The groove is provided with a plurality of through holes on one side close to the elevated frame, and the sprocket shaft passes through the through holes and is movably connected with the groove. The sprocket shaft is fixed on the groove to provide a certain supporting force for the rotating device.

[0017] The main pipe is provided with shunt pipes at equal intervals, and the shunt pipes are provided on the main pipe at equal intervals, so as to facilitate the placement of the embedded steel pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the first embodiment of the paint extraction device of the utility model;

[0019] Figure 2 This is a structural diagram of the second embodiment of the paint extraction device of the utility model;

[0020] Figure 3 yes Figure 1 The structural diagram of part A;

[0021] Figure 4 is a cross-sectional view of a rotating device according to an embodiment of the utility model;

[0022] In the figure: 1. support frame; 11. high frame; 12. low frame; 2. main pipe; 3. embedded steel pipe; 4. rotating device; 41. chain; 411. slave chain; 412. main chain; 42. sprocket shaft; 43. main sprocket; 44. motor; 45. roller; 46. slave sprocket; 47. auxiliary sprocket; 5. groove; 6. paint bucket; 61. low paint bucket; 62. high paint bucket; 7. liquid pump; 8. hose; 81. long hose; 82. short hose; 9. diverter pipe; 10. main valve. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0024] See attached Figure 1-4 , this embodiment provides a pre-buried steel pipe inner wall painting device, including a support frame 1, a pre-buried steel pipe 3 and a paint bucket 6;

[0025] The upper end of the support frame 1 is higher than the lower end of the support frame 1. A main flow pipe 2 is fixed to the upper end of the support frame 1. A plurality of branch pipes 9 are arranged on the main flow pipe 2. One side of the main flow pipe 2 is sealed, and the other side of the main flow pipe 2 is connected to a paint extraction device.

[0026] The paint extraction device extracts the paint in the paint bucket 6 into the main flow pipe 2;

[0027] The upper end of the embedded steel pipe 3 is fixed to the lower end of the shunt pipe 9; specifically, the shunt pipe 9 is a structure with interfaces at both ends that can rotate relatively, such as a rotary joint, the upper end of the shunt pipe 9 is connected to the fixed main pipe 2, and the lower end of the shunt pipe 9 is connected to the upper end of the embedded steel pipe 3. When the embedded steel pipe 3 rotates, the end of the shunt pipe 9 connected to the main pipe 2 remains stationary, and the lower end of the embedded steel pipe 3 is connected to a rotating device 4, and the embedded steel pipe 3 rotates under the drive of the rotating device 4;

[0028] A groove 5 is fixed at the lower end of the support frame 1 , and the lower part of the embedded steel pipe 3 extends to the upper part of the groove 5 , one end of the groove 5 is higher than the other end, and the lower end of the groove 5 extends to the upper part of the paint bucket 6 .

[0029] Through the above-mentioned device, when the inner wall of the embedded steel pipe 3 is subjected to anti-corrosion construction, the worker only needs to place the embedded steel pipe 3 obliquely on the support frame 1, connect the upper end to the diverter pipe 9, and connect the lower end to the roller 45, and use the paint extraction device to extract the paint in the paint bucket 6 into the main pipe 2, and then flow to the inside of the embedded steel pipe 3 through the diverter pipe 9 to achieve the coverage of the anti-corrosion paint; the remaining paint in the embedded steel pipe 3 flows back to the paint bucket 6 through the groove 5 below and can be recycled; the rotating device rotates the steel pipe, so that the anti-corrosion paint on the inner wall of the embedded steel pipe 3 flows evenly, and the inner wall is completely covered with the anti-corrosion paint; compared with the traditional brushing process, the present device has high efficiency, low cost, and can be recycled, which conforms to the concept of green construction.

[0030] In this embodiment, the support frame 1 includes an elevated frame 11 and a low frame 12. Preferably, the elevated frame 11 and the low frame 12 can be welded separately using steel bars at the construction site, which is convenient for obtaining local materials and reducing transportation costs; the elevated frame 11 and the low frame 12 are not fixed, which is convenient for moving and adjusting the distance between the elevated frame 11 and the low frame 12 to adjust the inclination angle of the embedded steel pipe 3; preferably, the height ratio between the elevated frame 11 and the low frame 12 is 2:1; a transverse mainstream pipe 2 is fixed at the upper end of the elevated frame 11, and the mainstream pipe 2 is a steel pipe with a model of D32, and the rotating device and the groove 5 are fixed on the low frame 12.

[0031] In this embodiment, the embedded steel pipe 3 can have various specifications. Preferably, the main pipe 2 adopts a DN32 steel pipe, holes are opened at equal intervals on the main pipe 2, the upper port of the diversion pipe 9 is fixed to the holes, and the diversion pipe 9 adopts a DN15 short steel pipe.

[0032] In this embodiment, the paint extraction device includes a hose 8, a liquid pump 7 and a main valve 10, and the hose 8 is divided into a long hose 81 and a short hose 82. Implementation method 1 of the paint extraction device is as follows: the upper end of the long hose 81 is connected to the main pipe 2 through the main valve 10, and the lower end of the long hose 81 is connected to the water outlet of the liquid pump 7; one end of the short hose 82 is placed in the paint bucket 6, and the other end is connected to the water inlet of the liquid pump 7. The second implementation mode of the paint extraction device is as follows: two paint buckets 6 are provided, namely a high paint bucket 62 and a low paint bucket 61. The high paint bucket 62 is placed on a rack made of steel bars, the height of the steel bar rack is higher than the high rack 11, the liquid pump 7 is placed in the low paint bucket 61, one end of the long hose 81 is connected to the water outlet end of the liquid pump 7, the other end of the long hose 81 is placed in the high paint bucket 62 and fixed to the wall of the high paint bucket, a DN15 ball valve is inserted at the lower end of the high paint bucket 62, the ball valve is connected to the short hose 82, and the other end of the short hose 82 is connected to the main valve 10; the second implementation mode adds a paint bucket 6, all the paints are concentratedly extracted into the high paint bucket 6, and then the main valve 10 is opened to cover the inner wall with paint.

[0033] In this embodiment, the rotating device 4 includes a motor 44, a main sprocket 43, a plurality of sprocket shafts 42, a slave sprocket 46, an auxiliary sprocket 47, a chain 41 and a roller 45. The sprocket shaft 42 is arranged on the upper edge of the groove 5, and the roller 45 is fixedly sleeved on the rear end of the sprocket shaft 42. The front end of the sprocket shaft 42 is fixedly sleeved with a slave sprocket 46 and an auxiliary sprocket 47. Two rollers 45 form a group. The distance between the two rollers 45 in the same group is less than the diameter of the embedded steel pipe 3. The lower end of the embedded steel pipe 3 is placed on the two rollers 45 in the same group for rotating the embedded steel pipe 3. The chain 41 includes a main chain 412 and a slave chain 411. The two slave sprockets 46 in the same group are driven by the main chain 412, and the two adjacent auxiliary sprockets 47 in the adjacent group are driven by the slave chain 411. The rightmost auxiliary sprocket 47 and the main sprocket 43 are driven by the slave chain 411. When the motor 44 drives the main sprocket 43 to rotate, the auxiliary sprocket 47 on the far right is rotated under the drive of the slave chain 411, thereby driving the coaxial slave sprocket 46 to rotate, and then driving the slave sprocket 46 of the same group to rotate, and through the continuous transmission of each group of chains and sprockets, driving each roller 45 to rotate, thereby frictionally driving the embedded steel pipe 3 to rotate. The various parts of the rotating device 4 cooperate to realize the rotation of the embedded steel pipe 3 under the premise of simplifying the structure as much as possible, so that the paint can cover the inner wall of the embedded steel pipe 3 more evenly, and the anti-corrosion effect is better.

[0034] In this embodiment, the low frame 12 is a U-shaped steel frame, and the long sides of the groove 5 are fixed to the two ends of the U-shaped steel frame. The groove 5 is a U-shaped groove made of iron sheet material. The groove 5 is provided with a plurality of through holes on the side close to the high frame 11. The diameter of the through holes is slightly larger than the sprocket shaft, and the number of the through holes is the same as the number of the sprocket shafts. The rear end of the sprocket shaft 42 passes through the through hole and is connected to the roller 45. The sprocket shaft 42 is movably connected to the groove 5 to provide certain support for the rotating device 4.

[0035] The above are only preferred feasible embodiments of the present utility model, and are not intended to limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A pre-buried steel pipe inner wall painting device, comprising a support frame, a pre-buried steel pipe and a paint bucket, characterized in that: The upper end of the support frame is higher than the lower end of the support frame, a main flow pipe is fixed on the upper end of the support frame, and a plurality of branch pipes are arranged on the main flow pipe; one side of the main flow pipe is sealed, and the other side of the main flow pipe is connected to the paint extraction device; The paint extraction device extracts the paint in the paint bucket into the main flow pipe; The upper end of the embedded steel pipe is fixed to the shunt pipe; the lower end of the embedded steel pipe is connected to a rotating device; A groove is fixed at the lower end of the support frame, the lower part of the embedded steel pipe extends to the upper part of the groove, one end of the groove is higher than the other end, and the lower end of the groove extends to the upper part of the paint bucket.

2. The embedded steel pipe inner wall painting device according to claim 1 is characterized in that: The support frame comprises an elevated frame and a low frame. The upper end of the elevated frame is fixed with the main flow pipe, and the rotating device and the groove are fixed on the low frame.

3. The embedded steel pipe inner wall painting device according to claim 1 is characterized in that: The paint extraction device comprises a hose, a liquid pump and a main valve (10); one end of the hose is placed in the paint bucket, the other end is connected to the main pipe via the main valve (10), and the middle of the hose is connected to the liquid pump.

4. The embedded steel pipe inner wall painting device according to claim 1 is characterized in that: The rotating device includes an electric motor, multiple sprocket shafts, a main sprocket, a chain and a roller. The electric motor drives the main sprocket to rotate. The main sprocket and the front sprocket of the sprocket shaft are meshed with the chain. A roller is fixedly sleeved on the rear end of the sprocket shaft. The two rollers are butt-jointed with the lower end of the embedded steel pipe, and the distance between the two rollers is smaller than the diameter of the embedded steel pipe.

5. The embedded steel pipe inner wall painting device according to claim 4 is characterized in that: A plurality of through holes are formed on one side of the groove close to the elevated frame, and the sprocket shaft passes through the through holes and is movably connected with the groove.

6. The embedded steel pipe inner wall painting device according to claim 1 is characterized in that: The branch pipes are arranged on the main pipe at equal intervals.

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