A quick and convenient device for marking grid lines on pipe surfaces
By designing a quick and convenient pipe fitting surface grid line marking device, the rotating bracket and roller mold are used to achieve rapid and accurate marking of the natural gas PE pipe surface grid line, solving the time-consuming, labor-intensive and inability of manual marking in the prior art. The problem of control density improves efficiency and quality.
Patent Information
- Application Number
- CN202011191578.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-10-30
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2040-10-30
AI Technical Summary
In the prior art, the planing operation of the welding site when natural gas PE pipes are taken in requires manual marking, which consumes a lot of manpower, and cannot control the density and scraping integrity of the grid lines, resulting in low efficiency and poor quality.
A quick and convenient pipe fitting surface grid line marking device including horizontal mounting plate, vertical mounting plate, rotating bracket, roller mold and rotating handle is designed. The precise grid line marking device is realized by positioning rollers and limiting screws. , the drum mold and sponge oil storage tank ensure the continuity of marking and multiple use.
It realizes the rapid and accurate drawing of neat and clear grid lines on the surface of PE pipes, saving manpower and time, improving the marking efficiency, suitable for pipes of different diameters, and avoids pipe damage through the roller structure, ensuring scraping quality .
Smart Images
Figure CN112238436B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of natural gas PE pipe construction, and in particular relates to a quick and convenient device for marking grid lines on the surface of a pipe fitting. Background Art
[0002] In order to ensure the quality of the natural gas PE pipe when it is connected, it is necessary to scrape off a layer of outer skin at the welding part of the pipe fitting to ensure the cleanliness of the PE pipe. At the same time, in order to ensure that there is no missed scraping, workers are required to use a white paint pen to draw white grid lines on the welding part of the pipe fitting to prevent missed scraping, and the scraped length needs to be measured according to the different specifications of the pipe fittings. In the prior art, the marking operation is performed manually with a white paint pen and a length measuring tool, but the manual marking of the grid by workers requires a lot of manpower, is time-consuming and labor-intensive, and the density of the grid lines cannot be controlled, that is, it is impossible to confirm whether the scraping is complete.
[0003] Therefore, it is necessary to provide a new, quick and convenient pipe surface grid line marking device to solve the above problems. Summary of the invention
[0004] The main purpose of the present invention is to provide a quick and convenient pipe surface grid line marking device, which can quickly and accurately mark grid lines on the pipe surface, and the marking length can be precisely adjusted.
[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: a quick and convenient grid line marking device for the surface of a pipe fitting, which includes a rotating bracket with a horizontal mounting plate and a vertical mounting plate, a first positioning roller and a second positioning roller rotatably arranged on the vertical mounting plate and located on the same horizontal plane, a third positioning roller rotatably arranged on the vertical mounting plate and located directly below the middle of the first positioning roller and the second positioning roller, a grid roller mold elastically and floatably arranged on the horizontal mounting plate and located directly above the middle of the first positioning roller and the second positioning roller, and a rotating handle rotatably arranged on the outside of the vertical mounting plate and distributed horizontally.
[0006] Furthermore, a telescopic handle which can move up and down is arranged on the horizontal mounting plate, the lower part of the telescopic handle passes through the horizontal mounting plate and a roller bracket is arranged at the bottom end, and the grid roller mold is rotatably mounted on the roller bracket.
[0007] Furthermore, a compression spring for pressing the roller bracket downward is sleeved on the outer periphery of the portion of the telescopic handle extending out of the horizontal mounting plate, and a retaining spring is provided on the outer periphery of the portion above the horizontal mounting plate to achieve a hanging connection of the telescopic handle.
[0008] Furthermore, a rotating bracket handle is fixedly provided on the horizontal mounting plate, and the rotating bracket handle is located at the outer periphery of the telescopic handle.
[0009] Furthermore, a limit screw is provided on the vertical mounting plate, and the limit screw is located between the upper surface of the first positioning roller and the lower surface of the grid drum mold, and the front end of the limit screw is against the end of the pipe when marking, and the axial length of the grid drum mold covering the pipe surface is adjusted by rotating the limit screw.
[0010] Furthermore, a sponge oil storage tank for providing printing oil to the grid roller mold is also provided on the roller bracket.
[0011] Furthermore, the third positioning roller is arranged on an adjusting screw whose position can be adjusted up and down.
[0012] Furthermore, the adjusting screw is distributed vertically and is threadedly connected to the bottom of the vertical mounting plate.
[0013] Furthermore, the vertical mounting plate is provided with a first horizontal support rod supporting the first positioning roller, a second horizontal support rod supporting the second positioning roller, and a third horizontal support rod supporting the rotating handle.
[0014] Furthermore, the rotating handle is arranged on the third horizontal support rod through a pair of bearings to achieve a rotatable degree of freedom relative to the rotating bracket.
[0015] Compared with the prior art, the invention provides a quick and convenient pipe surface grid line marking device with the following beneficial effects: it can quickly and conveniently draw neat and clear grid lines on the surface of a natural gas PE pipe, which is convenient for subsequent PE pipe end processing, saves time and effort, and greatly improves the efficiency of the marking operation; and the grid line marking length can be flexibly adjusted; the inner support structure size can also be adjusted to cooperate with the inner holes of pipes of different diameters to achieve positioning, which greatly improves the versatility of the marking device; in addition, an oil storage tank is provided to continuously provide printing oil to the grid roller mold to achieve multiple and long-term use of the marking device; the roller structure is used to contact the inner wall and outer peripheral surface of the PE pipe, and the pipe will not be damaged; the operation is convenient and time-saving, and the drawn grid lines are uniform and beautiful, which can ensure the scraping quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a side view structural schematic diagram of an embodiment of the present invention;
[0017] Figure 2 It is a front view structural schematic diagram of an embodiment of the present invention;
[0018] The numbers in the figure represent:
[0019] 100Quick and convenient device for marking grid lines on pipe surface;
[0020] 1. Rotating bracket handle; 2. Telescopic handle; 3. Rotating bracket, 31. Horizontal mounting plate, 32. Vertical mounting plate; 4. Compression spring; 5. Roller bracket; 6. Third positioning roller; 7. Rotating handle; 8. Bearing; 9. Limiting screw; 10. Sponge oil storage tank; 11. Grid roller mold; 12. First positioning roller; 13. Second positioning roller, 14. Adjusting screw; 15. Third horizontal support rod; 16. Limiting retaining spring. DETAILED DESCRIPTION Example
[0021] Please refer to Figure 1-Figure 2 The present embodiment provides a quick and convenient pipe surface grid line marking device 100, which includes a rotating bracket 3 with a horizontal mounting plate 31 and a vertical mounting plate 32, a first positioning roller 12 and a second positioning roller 13 rotatably arranged on the vertical mounting plate 32 and located on the same horizontal plane, a third positioning roller 6 rotatably arranged on the vertical mounting plate 32 and located directly below the middle of the first positioning roller 12 and the second positioning roller 13, a grid roller mold 11 elastically and floatably arranged on the horizontal mounting plate 31 and located directly above the middle of the first positioning roller 12 and the second positioning roller 13, and a rotating handle 7 arranged on the outer side of the vertical mounting plate 32 and distributed horizontally.
[0022] The three positioning rollers form an inner support structure, which is inserted into the inner hole of the pipe to be marked during marking. The first positioning roller 12, the second positioning roller 13 and the third positioning roller 6 are in close contact with the inner wall surface of the pipe to be marked, so as to realize the positioning of the marking device 100 as a whole and the pipe. At the same time, the grid roller mold 11 is pressed against the outer peripheral surface of the pipe to be marked and is located in the marking area. The grid line marking operation on the outer peripheral surface of the pipe can be completed by holding the rotating handle 7 and rotating it around the axis of the pipe for one circle. Marking is quick and convenient, and the lines are clear and neat.
[0023] A telescopic handle 2 that can move up and down is arranged on the horizontal mounting plate 31. The lower part of the telescopic handle 2 passes through the horizontal mounting plate 31 and a roller bracket 5 is arranged at the bottom end. The mesh roller mold 11 is rotatably mounted on the roller bracket 5. The outer periphery of the telescopic handle 2 that extends out of the horizontal mounting plate 31 is sleeved with a compression spring 4 that presses the roller bracket 5 downward. The roller bracket 5 is pressed downward by the compression spring 4, so that the mesh roller mold 11 arranged on the roller bracket 5 is tightly pressed against the outer peripheral surface of the pipe. The telescopic handle 2 is also provided with a limit spring 16 that limits the position of the telescopic handle 2 on the horizontal mounting plate 31.
[0024] A rotating bracket handle 1 is also provided on the horizontal mounting plate 31. The rotating bracket handle 1 is located at the periphery of the telescopic handle 2 to provide support for the palm when the telescopic handle 2 is lifted; at the same time, it can be used as a handle for the rotating bracket 3 for easy hand-held carrying.
[0025] In order to adjust the length of the grid lines, a limit screw 9 is provided on the vertical mounting plate 32. The limit screw 9 is located between the upper surface of the first positioning roller 12 and the lower surface of the grid roller mold 11, and the front end of the limit screw 9 abuts against the end of the pipe when marking. The axial length of the grid roller mold 11 covering the pipe surface can be adjusted by rotating the limit screw 9, thereby achieving accurate adjustment of the length of the grid lines. The limit screw 9 is threadedly connected to the vertical mounting plate 32.
[0026] In order to maintain the long-term use of the marking device 100 of this embodiment, a sponge oil storage tank 10 is further provided on the roller bracket 5 and is arranged in contact with the grid roller mold 11. The sponge oil storage tank 10 is arranged tangent to the grid roller mold 11 to provide paint or pigment or colored glue paint, etc. to the grid roller mold 11.
[0027] In order to improve the versatility of the marking device 100 of this embodiment, the third positioning roller 6 is arranged on an adjusting screw 14 whose position can be adjusted up and down, and the adjusting screw 14 is vertically distributed and threadedly connected to the bottom of the vertical mounting plate 32. The adjusting screw 14 can be rotated to achieve the up and down movement of the adjusting screw 14, thereby achieving the position adjustment of the third positioning roller 6 fixed on the adjusting screw 14, thereby changing the distance between the third positioning roller 6 and the plane where the first positioning roller 12 or the second positioning roller 13 is located (that is, the diameter size of the inner hole matched by the above-mentioned inner support structure), so that it can be matched with the inner holes of various pipes of different specifications and sizes, thereby improving versatility.
[0028] The vertical mounting plate 32 is provided with a first horizontal support rod (not shown in the figure) supporting the first positioning roller 12, a second horizontal support rod (not shown in the figure) supporting the second positioning roller 13, and a third horizontal support rod 15 supporting the rotating handle 7. The rotating handle 7 is arranged on the third horizontal support rod 15 through a pair of bearings 8 to achieve a rotatable degree of freedom relative to the rotating bracket 3.
[0029] When performing the grid line marking operation, first stretch the telescopic handle 2, and at the same time pull up the roller bracket 5 equipped with the grid roller mold 11, align the tube wall of the PE tube with the gap between the first positioning roller 12 and the third positioning roller 6, and then insert it into the inner hole of the PE tube and put it on the PE tube, put down the telescopic handle 2, and press the grid roller mold 11 on the PE tube by compressing the spring 4. At the same time, adjust the distance required for marking by adjusting the limit screw 9, and adjust the adjustment screw 14 so that the marking device 100 and the PE tube are positioned by the inner support structure formed by the first positioning roller 12, the second positioning roller 13 and the third positioning roller 6. At this time, the rotating bracket 3 can rotate around the axis of the PE tube; the rotating handle 7 is rotated to drive the rotating bracket 3 to rotate, and at the same time, the grid roller mold 11 is rolled close to the outer peripheral surface of the PE tube. The grid pattern can be printed on the PE tube after one rotation; the sponge oil storage tank 10 can store printing ink inside for long-term use.
[0030] The present embodiment provides a quick and convenient pipe surface grid line marking device 100, which can quickly and conveniently draw neat and clear grid lines on the surface of a natural gas PE pipe, which is convenient for subsequent PE pipe end processing, saves time and effort, and greatly improves the efficiency of the marking operation; and the grid line marking length can be flexibly adjusted; the inner support structure size can also be adjusted to cooperate with the inner holes of pipes of different diameters to achieve positioning, which greatly improves the versatility of the marking device; in addition, an oil storage tank is provided to continuously provide printing oil to the grid roller mold to achieve multiple and long-term use of the marking device; the roller structure is used to contact the inner wall and outer peripheral surface of the PE pipe, and the pipe will not be damaged; the operation is convenient and time-saving, and the drawn grid lines are uniform and beautiful, which can ensure the scraping quality.
[0031] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.
Claims
1. A quick and convenient device for marking grid lines on the surface of pipe fittings, characterized by: The utility model comprises a rotating bracket having a horizontal mounting plate and a vertical mounting plate, a first positioning roller and a second positioning roller rotatably arranged on the vertical mounting plate and located on the same horizontal plane, a third positioning roller rotatably arranged on the vertical mounting plate and located directly below the middle of the first positioning roller and the second positioning roller, a grid roller mold elastically and floatably arranged on the horizontal mounting plate and located directly above the middle of the first positioning roller and the second positioning roller, and a rotating handle rotatably arranged on the outer side of the vertical mounting plate and distributed horizontally, and a telescopic handle movable up and down is arranged on the horizontal mounting plate, and the telescopic handle The lower part of the hand passes through the horizontal mounting plate and a roller bracket is provided at the bottom end, and the grid roller mold is rotatably mounted on the roller bracket; the outer periphery of the part of the telescopic handle extending out of the horizontal mounting plate is sleeved with a compression spring for pressing the roller bracket downward, and a retaining spring is provided on the outer periphery of the upper part of the horizontal mounting plate to realize the hanging connection of the telescopic handle; a limit screw is provided on the vertical mounting plate, and the limit screw is located between the upper surface of the first positioning roller and the lower surface of the grid roller mold, and the front end of the limit screw is against the end of the pipe when marking, and the axial length of the grid roller mold covering the pipe surface is adjusted by rotating the limit screw.
2. The quick and convenient pipe surface grid line marking device according to claim 1, characterized in that: A rotating bracket handle is fixedly arranged on the horizontal mounting plate, and the rotating bracket handle is located at the periphery of the telescopic handle.
3. The quick and convenient pipe surface grid line marking device according to claim 1, characterized in that: The roller bracket is also provided with a sponge oil storage tank for providing printing oil to the grid roller mold.
4. The quick and convenient pipe surface grid line marking device according to claim 1, characterized in that: The third positioning roller is arranged on an adjusting screw rod whose position can be adjusted up and down.
5. The quick and convenient pipe surface grid line marking device according to claim 4, characterized in that: The adjusting screw is distributed vertically and is threadedly connected to the bottom of the vertical mounting plate.
6. The quick and convenient pipe surface grid line marking device according to claim 1, characterized in that: The vertical mounting plate is provided with a first horizontal support rod supporting the first positioning roller, a second horizontal support rod supporting the second positioning roller, and a third horizontal support rod supporting the rotating handle.
7. The quick and convenient pipe surface grid line marking device according to claim 6, characterized in that: The rotating handle is arranged on the third horizontal support rod through a pair of bearings, and realizes a rotatable degree of freedom relative to the rotating bracket.