An auxiliary line-drawing device for assembled water and electricity installation

Abstract

The present invention discloses an auxiliary line-drawing device for prefabricated hydropower installation, belonging to the technical field of hydropower installation. It includes a bottom plate, and a side plate is fixedly connected to the upper surface of the bottom plate. A first sliding groove is formed in the front surface of the side plate, and a first slider is slidably connected in the first sliding groove. The front surface of the first slider is hinged with a support rod through a pin shaft, and a control mechanism is fixedly connected to the upper surface of the support rod, and a line-drawing mechanism is arranged in the control mechanism. In the present invention, by arranging the line-drawing mechanism, the line-drawing pen can draw lines on the wall when it moves. Under the action of the fixed block, the third slider and the third sliding groove, the easy assembly of the line-drawing pen is realized, which brings convenience to the line-drawing construction. By arranging the control mechanism, moving the control toggle block can drive the sliding sleeve to move, and the sliding sleeve can drive the line-drawing pen to move randomly. By arranging the sliding rod and the sliding sleeve, under their action, the line-drawing pen can move stably along the track without being affected, improving the effect of stable line-drawing.

Description

Technical Field

[0001] The invention belongs to the technical field of hydropower installation, and in particular relates to an auxiliary marking device for assembled hydropower installation. Background Art

[0002] Water and electricity installation is an important step in home decoration. The installation of pipes and lines needs to be reasonably laid out, otherwise it will have a bad impact on people’s home life. Before construction, a reasonable construction design drawing needs to be designed to facilitate subsequent installation work and avoid mistakes.

[0003] During water and electricity installation, workers usually use rulers to measure and assist in drawing lines. This operation is rather troublesome, and they need to measure angles when drawing lines, and they also need to use other tools to measure before drawing lines, which is very inconvenient to use. If there is a lot of dust and impurities on the wall, it will not only cause wear on the tip of the marker pen, but may also affect the drawing effect, causing blurred lines and affecting construction. At the same time, if there are uneven surfaces on the wall, the marker pen cannot draw smoothly on the uneven surfaces when drawing lines, which can easily cause twists and turns in the lines and affect construction. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that workers generally use rulers to measure and draw auxiliary lines during water and electricity installation, which is troublesome to operate, and it is necessary to measure angles when drawing lines, and it is also necessary to use other tools to measure and then draw lines, which is very inconvenient to use. If there is a lot of dust and impurities on the wall, it will not only cause wear on the tip of the marker pen, but also may affect the drawing effect, causing blurred lines to affect construction. At the same time, if there are uneven conditions on the wall, the marker pen cannot draw smoothly on the uneven places when drawing lines, which easily causes twists and turns in the lines and affects the construction. Therefore, an auxiliary drawing device for assembled water and electricity installation is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An auxiliary marking device for assembled water and electricity installation comprises a base plate, the upper surface of the base plate is fixedly connected to a side plate, the front side of the side plate is provided with a first slide groove, a first slider is slidably connected in the first slide groove, a support rod is hinged on the front side of the first slider through a pin shaft, the upper surface of the support rod is fixedly connected to a control mechanism, a marking mechanism is arranged in the control mechanism, a dust cleaning mechanism is fixedly connected to the lower surface of the support rod, one end of the dust cleaning mechanism is meshed with the front side of a transmission mechanism, the transmission mechanism is fixedly connected to the back side of the side plate, a sliding hole is provided on the front side of the support rod, one end of an adjusting mechanism is arranged in the sliding hole, the adjusting mechanism is arranged on the base plate, and a handle is fixedly connected to the right end of the support rod.

[0007] As a further description of the above technical solution:

[0008] The control mechanism includes a shell fixedly connected to the upper surface of the support rod, a sliding rod fixedly connected inside the shell, a sliding sleeve is provided on the outer side of the sliding rod, a toggle block is fixedly connected to the upper surface of the sliding sleeve, the toggle block is located in a toggle hole opened on the upper surface of the shell, a through hole is opened on the back side of the shell, a drawing mechanism is provided in the through hole, and the drawing mechanism is fixedly connected to the back side of the sliding sleeve.

[0009] As a further description of the above technical solution:

[0010] The marking mechanism is fixedly connected to the pen cover on the back of the sliding sleeve, a pen cap is provided on the back of the pen cover, a threaded sleeve is fixedly connected to the front of the pen cap, the threaded sleeve is threadedly connected in the pen cap, a rubber cover is provided in the pen cover, the left and right sides of the rubber cover are fixedly connected to third sliding blocks, the two third sliding blocks are respectively slidably connected to the third sliding grooves opened on the left and right sides of the inner wall of the pen cover, one end of the marking pen is provided in the rubber cover, and the other end of the marking pen passes through the outside of the pen cap.

[0011] As a further description of the above technical solution:

[0012] The upper and lower side surfaces of the pen cap are fixedly connected with a second sliding block, the second sliding block is slidably connected in a second sliding groove, and two second sliding grooves are respectively arranged on the upper and lower side surfaces of the inner wall of the through hole.

[0013] As a further description of the above technical solution:

[0014] The cleaning mechanism includes a U-shaped shell fixedly connected to the lower surface of the support rod, a cleaning roller is arranged in the U-shaped shell, the cleaning roller is clamped on the outer surface of the fixed shaft, the fixed shaft is rotatably connected in the U-shaped shell, a second gear is clamped on the outer surface of the fixed shaft, the second gear is meshed with a third gear, the third gear is fixedly connected to the right end of the first rotating shaft, the first rotating shaft is sleeved in the first bearing clamped on the left side of the U-shaped shell, the left end of the first rotating shaft is fixedly connected with the first gear, and the first gear is in contact with one end of the transmission mechanism.

[0015] As a further description of the above technical solution:

[0016] The transmission mechanism includes a rack meshing with the first gear, and the upper and lower sides of the right side surface of the rack are fixedly connected with a fourth slider, and the fourth slider is slidably connected to a fourth slide groove opened on a side surface of the side plate, and the back side of the rack is fixedly connected with a pull plate through a slide plate, and the slide plate is clamped in a sleeve clamped on the front side of the fixed plate, and the upper and lower sides of the front side of the slide plate are fixedly connected with an electromagnet, and a magnet block is provided on the front side of the electromagnet, and the magnet block is fixedly connected to the back side of the fixed plate, and the upper and lower sides of the front side of the fixed plate are fixedly connected to the back side of the rack through a first spring, and the right side of the fixed plate is fixedly connected to the back side of the side plate through two baffles.

[0017] As a further description of the above technical solution:

[0018] The adjusting mechanism includes a T-shaped groove formed on the upper surface of the bottom plate. A T-shaped block is slidably connected in the T-shaped groove. The upper surface of the T-shaped block is fixedly connected with a housing. The upper surface of the inner wall of the housing is rotatably connected with a threaded column. A threaded nut is threadedly connected to the outer surface of the threaded column. The front surface of the threaded nut is fixedly connected with a cylindrical block. The front surface of the cylindrical block passes through a through hole formed in the front surface of the housing and extends into a sliding hole. The bottom end of the threaded column is fixedly connected with a first bevel gear. The first bevel gear meshes with a second bevel gear. The front surface of the second bevel gear is fixedly connected with a handwheel through a second rotating shaft. The second rotating shaft is clamped in a second bearing clamped on the front surface of the housing.

[0019] As a further description of the above technical solution:

[0020] The front surface of the first slider is fixedly connected with a protractor. The protractor is located at the rear side of the fixed rod and on the right side of the pin shaft.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] 1. In the present invention, by providing a line-drawing mechanism, when the line-drawing pen moves, it can draw lines on the wall. Under the action of the fixed block, the third slider and the third sliding groove, the line-drawing pen can move back and forth. At the same time, in cooperation with the elastic force of the second spring, the line-drawing pen can draw lines on the uneven wall surface, avoiding the lines from being wavy and affecting subsequent construction. By providing a pen cap, the pen cap can fix the line-drawing pen, avoiding the line-drawing pen from directly detaching from the pen sleeve. At the same time, if the line-drawing pen is worn out and cannot be used continuously, the pen cap can be disassembled, the line-drawing pen can be pulled out of the rubber sleeve and a new line-drawing pen can be replaced, realizing the easy assembly of the line-drawing pen and bringing convenience to the line-drawing construction. By providing a control mechanism, moving the control toggle block can drive the sliding sleeve to move. The sliding sleeve can drive the line-drawing pen to move arbitrarily. By providing a sliding rod and a sliding sleeve, under their action, the line-drawing pen can move stably along the track without being affected, improving the effect of stable line-drawing.

[0023] 2. In the present invention, by providing the first slider and the pin shaft, under their action, the support rod can be rotated to adjust the angle or moved up and down to adjust the height, so as to be able to draw lines of different heights and angles. By providing an adjusting mechanism, the cylindrical block can move in the sliding sleeve, and at the same time, the T-shaped block can move in the T-shaped groove, so that the support rod can be fixed at any position when it rotates, avoiding the influence on line-drawing. By providing a handwheel, rotating the second rotating shaft is controlled by the handwheel. Under the action of the first bevel gear and the second bevel gear, when the threaded column rotates, the threaded nut can drive the cylindrical block to move up and down to adjust the height and stabilize it, avoiding the influence on the angle of the support rod.

[0024] 3. In the present invention, by providing a dust cleaning mechanism and a transmission mechanism, when the dust cleaning mechanism moves up and down, the first gear therein meshes with the rack in the transmission mechanism. At this time, the first gear can rotate and drive the dust cleaning roller to rotate through the first rotating shaft, the second gear, and the third gear, so as to effectively clean the dust on the wall before drawing a line and avoid affecting the line drawing work. When the support rod rotates at an angle during line drawing, in order to avoid affecting the movement of the first gear, the electromagnet is no longer energized and no longer attracts the magnet block. At this time, under the action of the first spring, the rack can be pulled backward, so that when the rack moves backward, it no longer contacts the first gear, avoiding affecting the movement of the first gear. By providing the fourth slider and the fourth chute, the rack can move stably back and forth under their action. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. 6 is a front view structural schematic diagram of an auxiliary line drawing device for prefabricated water and electricity installation proposed by the present invention;

[0026] Figure 2 FIG. 10 is a side view structural schematic diagram of the transmission mechanism in an auxiliary line drawing device for prefabricated water and electricity installation proposed by the present invention;

[0027] Figure 3 FIG. 14 is a side view sectional structural schematic diagram of the adjustment mechanism in an auxiliary line drawing device for prefabricated water and electricity installation proposed by the present invention;

[0028] Figure 4 FIG. 18 is a top view sectional structural schematic diagram of the dust cleaning mechanism in an auxiliary line drawing device for prefabricated water and electricity installation proposed by the present invention;

[0029] Figure 5 FIG. 22 is a top view partial sectional structural schematic diagram of the control mechanism in an auxiliary line drawing device for prefabricated water and electricity installation proposed by the present invention;

[0030] Figure 6 FIG. 26 is a top view partial sectional structural schematic diagram of the line drawing mechanism in an auxiliary line drawing device for prefabricated water and electricity installation proposed by the present invention.

[0031] Legend:

[0032] 1. Bottom plate; 2. Side plate; 3. First slider; 4. Control mechanism; 41. Shell; 42. Slide bar; 43. Toggle block; 44. Through hole; 5. Divider; 6. Adjustment mechanism; 61. Shell; 62. Through hole; 63. Hand wheel; 64. T-shaped block; 65. Threaded column; 66. Threaded cap; 67. Cylindrical block; 68. First bevel gear; 69. Second bevel gear; 610. Second rotating shaft; 7. Transmission mechanism; 71. Fixed plate; 72. Electromagnet; 73. Magnet block; 74. Pull plate; 75. Slide plate; 76, first spring; 77, rack; 78, fourth slider; 8, cleaning mechanism; 81, first gear; 82, first rotating shaft; 83, U-shaped shell; 84, cleaning roller; 85, second gear; 86, third gear; 9, drawing mechanism; 91, drawing pen; 92, pen cap; 93, threaded sleeve; 94, pen cover; 95, second slider; 96, fixed block; 97, third slider; 98, rubber sleeve; 99, second spring; 10, pin shaft; 11, sliding hole; 12, support rod; 13, handle. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-6 The present invention provides a technical solution: an auxiliary marking device for assembled water and electricity installation, comprising a bottom plate 1, a side plate 2 is fixedly connected to the upper surface of the bottom plate 1, a first slide groove is provided on the front of the side plate 2, a first slider 3 is slidably connected in the first slide groove, a support rod 12 is hinged on the front of the first slider 3 through a pin 10, a control mechanism 4 is fixedly connected to the upper surface of the support rod 12, a marking mechanism 9 is arranged in the control mechanism 4, a dust cleaning mechanism 8 is fixedly connected to the lower surface of the support rod 12, one end of the dust cleaning mechanism 8 is meshed with the front of a transmission mechanism 7, the transmission mechanism 7 is fixedly connected to the back of the side plate 2, a sliding hole 11 is provided on the front of the support rod 12, one end of an adjusting mechanism 6 is arranged in the sliding hole 11, the adjusting mechanism 6 is arranged on the bottom plate 1, and a handle 13 is fixedly connected to the right end of the support rod 12.

[0035] Specifically, the control mechanism 4 includes a shell 41 fixedly connected to the upper surface of the support rod 12, a slide rod 42 fixedly connected inside the shell 41, a slide sleeve is provided on the outer side of the slide rod 42, a toggle block 43 fixedly connected to the upper surface of the slide sleeve, the toggle block 43 is located in a toggle hole opened on the upper surface of the shell 41, a through hole 44 is opened on the back side of the shell 41, a drawing mechanism 9 is provided in the through hole 44, and the drawing mechanism 9 is fixedly connected to the back side of the slide sleeve. By setting the control mechanism 4, the movement of the toggle block 43 can drive the movement of the slide sleeve, and the slide sleeve can drive the drawing pen 91 to move at will. By setting the slide rod 42 and the slide sleeve, the drawing pen 91 can move stably along the trajectory under their action without being affected, thereby improving the effect of stable drawing.

[0036] Specifically, the drawing mechanism 9 is fixedly connected to a pen sleeve 94 on the back of the sliding sleeve, a pen cap 92 is arranged on the back of the pen sleeve 94, a threaded sleeve 93 is fixedly connected to the front of the pen cap 92, the threaded sleeve 93 is threadedly connected in the pen cap 92, a rubber sleeve 98 is arranged in the pen sleeve 94, the left and right sides of the rubber sleeve 98 are fixedly connected to third sliders 97, the two third sliders 97 are respectively slidably connected in the third slide grooves opened on the left and right sides of the inner wall of the pen sleeve 94, one end of the drawing pen 91 is arranged in the rubber sleeve 98, and the other end of the drawing pen 91 passes through the outside of the pen cap 92. By setting the drawing mechanism 9, the drawing pen 91 can move to When drawing lines on the wall, the marking pen 91 can move back and forth under the action of the fixed block 96, the third sliding block 97 and the third sliding groove. At the same time, with the elastic force of the second spring 99, the marking pen 91 can draw lines on the uneven wall surface to avoid the twists and turns of the lines affecting the subsequent construction. By setting the pen cap 92, the pen cap 92 can fix the marking pen 91 to avoid the marking pen 91 directly falling out of the pen cover 94. At the same time, if the marking pen 91 is worn and cannot be used anymore, the pen cap 92 can be removed to pull the marking pen 91 out of the rubber cover 98 and replace it with a new one, so that the easy assembly of the marking pen 91 brings convenience to the line drawing construction.

[0037] Specifically, the upper and lower sides of the pen cap 92 are fixedly connected with a second slider 95, and the second slider 95 is slidably connected in a second slide groove. The two second slide grooves are respectively opened on the upper and lower sides of the inner wall of the through hole 44. By setting the second slider 95 and the second slide groove, the drawing pen 91 can move stably left and right without being affected.

[0038] Specifically, the dust cleaning mechanism 8 includes a U-shaped shell 83 fixedly connected to the lower surface of the support rod 12. A dust cleaning roller 84 is arranged inside the U-shaped shell 83. The dust cleaning roller 84 is clamped on the outer surface of a fixed shaft. The fixed shaft is rotatably connected inside the U-shaped shell 83. A second gear 85 is clamped on the outer surface of the fixed shaft. The second gear 85 meshes with a third gear 86. The third gear 86 is fixedly connected to the right end of a first rotating shaft 82. The first rotating shaft 82 is sleeved in a first bearing clamped on the left side surface of the U-shaped shell 83. The left end of the first rotating shaft 82 is fixedly connected with a first gear 81. The first gear 81 is in contact with one end of the transmission mechanism 7. By arranging the dust cleaning mechanism 8, when the dust cleaning mechanism 8 moves up and down, the first gear 81 therein meshes with the rack 77 in the transmission mechanism 7. At this time, the first gear 81 can rotate and drive the dust cleaning roller 84 to rotate through the first rotating shaft 82, the second gear 85 and the third gear 86, so as to effectively clean the dust on the wall before drawing a line and avoid affecting the line drawing work.

[0039] Specifically, the transmission mechanism 7 includes a rack 77 meshing with the first gear 81. Both the upper and lower sides of the right side surface of the rack 77 are fixedly connected with fourth sliders 78. The fourth sliders 78 are slidably connected in fourth chutes opened on one side surface of the side plate 2. The back surface of the rack 77 is fixedly connected with a pull plate 74 through a sliding plate 75. The sliding plate 75 is clamped in a sleeve clamped on the front surface of a fixing plate 71. Both the upper and lower sides of the front surface of the sliding plate 75 are fixedly connected with electromagnets 72. A magnet block 73 is arranged on the front side of the electromagnet 72. The magnet block 73 is fixedly connected to the back surface of the fixing plate 71. Both the upper and lower sides of the front surface of the fixing plate 71 are fixedly connected with the back surface of the rack 77 through first springs 76. The right side surface of the fixing plate 71 is fixedly connected to the back surface of the side plate 2 through two baffle plates. By arranging the transmission mechanism 7, when the support rod 12 rotates at an angle to draw a line, in order to avoid affecting the movement of the first gear 81, the electromagnet 72 is no longer powered on and no longer adsorbs the magnet block 73 at this time. At this time, under the action of the first spring 76, the rack 77 can be pulled to move backward, so that the rack 77 no longer contacts the first gear 81 when moving backward, avoiding affecting the movement of the first gear 81. By arranging the fourth sliders 78 and the fourth chutes, the rack 77 can move forward and backward stably under their action.

[0040] Specifically, the adjustment mechanism 6 includes a T-shaped groove opened on the upper surface of the bottom plate 1, a T-shaped block 64 is slidably connected in the T-shaped groove, the upper surface of the T-shaped block 64 is fixedly connected to the housing 61, the upper surface of the inner wall of the housing 61 is rotatably connected to a threaded column 65, the outer surface of the threaded column 65 is threadedly connected to a threaded cap 66, the front of the threaded cap 66 is fixedly connected to a cylindrical block 67, the front of the cylindrical block 67 passes through a through hole 62 opened on the front of the housing 61 and extends into the sliding hole 11, the bottom end of the threaded column 65 is fixedly connected to a first bevel gear 68, the first bevel gear 68 is meshed with a second bevel gear 69, and the front of the second bevel gear 69 is connected to the second rotating shaft 6 10 is fixedly connected with a handwheel 63, and the second rotating shaft 610 is clamped in the second bearing clamped on the front side of the shell 61. By setting the adjustment mechanism 6, the cylindrical block 67 can move in the sliding sleeve, and the T-shaped block 64 can move in the T-shaped groove, so that the support rod 12 can be fixed when it is rotated to any position to avoid the line drawing being affected. By setting the handwheel 63, the handwheel 63 is used to control the rotation of the second rotating shaft 610. Under the action of the first bevel gear 68 and the second bevel gear 69, the threaded column 65 rotates. At this time, the threaded cap 66 can drive the cylindrical block 67 to move up and down to adjust the height and stabilize it, to avoid the angle of the support rod 12 being affected.

[0041] Specifically, the front side of the first slider 3 is fixedly connected with a protractor 5, which is located on the rear side of the fixed rod and on the right side of the pin shaft 10. By setting the protractor 5, the rotation angle of the support rod 12 can be known under the action of the protractor 5, so that the drawing angle can be adjusted without the need to use additional tools for measurement, which greatly facilitates the operation of workers.

[0042] Working principle: when in use, place the base plate 1 on the ground, and use the dust cleaning mechanism 8 to clean the wall. When the dust cleaning mechanism 8 moves up and down, the first gear 81 therein is meshed with the rack 77 in the transmission mechanism 7. At this time, the first gear 81 can rotate and drive the dust cleaning roller 84 to rotate through the first rotating shaft 82, the second gear 85 and the third gear 86, so as to effectively clean the dust on the wall before drawing lines. Push the base plate 1 to move so that the line drawing pen 91 is attached to the wall, and then use the first slider 3 and the pin 10, and cooperate with the adjustment mechanism 6 to control the angle of the support rod 12. After the angle adjustment is completed, control the movement of the toggle block 43 to drive the sliding sleeve to move. The sliding sleeve can drive the line drawing pen 91 to move at will. When the line drawing pen 91 moves, it can draw lines on the wall. Under the action of the fixed block 96, the third slider 97 and the third slide groove, the line drawing pen 91 can move back and forth. At the same time, with the elastic force of the second spring 99, the line drawing pen 91 can draw lines on uneven walls.

[0043] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An auxiliary line-drawing device for prefabricated hydropower installation, including a bottom plate (1), characterized in that, The upper surface of the bottom plate (1) is fixedly connected to the side plate (2), the front side of the side plate (2) is provided with a first slide groove, a first slider (3) is slidably connected in the first slide groove, the front side of the first slider (3) is hinged with a support rod (12) through a pin shaft (10), the upper surface of the support rod (12) is fixedly connected to a control mechanism (4), a drawing mechanism (9) is arranged in the control mechanism (4), the lower surface of the support rod (12) is fixedly connected to a dust cleaning mechanism (8), one end of the dust cleaning mechanism (8) is meshed with the front side of a transmission mechanism (7), the transmission mechanism (7) is fixedly connected to the back side of the side plate (2), the front side of the support rod (12) is provided with a slide hole (11), one end of an adjustment mechanism (6) is arranged in the slide hole (11), the adjustment mechanism (6) is arranged on the bottom plate (1), and the right end of the support rod (12) is fixedly connected to a handle (13); The control mechanism (4) comprises a shell (41) fixedly connected to the upper surface of the support rod (12), a slide rod (42) fixedly connected inside the shell (41), a sliding sleeve sleeved outside the slide rod (42), a toggle block (43) fixedly connected to the upper surface of the sliding sleeve, the toggle block (43) being located in a toggle hole provided on the upper surface of the shell (41), a through hole (44) provided on the back side of the shell (41), a line drawing mechanism (9) provided in the through hole (44), and the line drawing mechanism (9) fixedly connected to the back side of the sliding sleeve; The marking mechanism (9) is fixedly connected to a pen sleeve (94) on the back of the sliding sleeve, a pen cap (92) is arranged on the back of the pen sleeve (94), a threaded sleeve (93) is fixedly connected to the front of the pen cap (92), the threaded sleeve (93) is threadedly connected in the pen cap (92), a rubber sleeve (98) is arranged in the pen sleeve (94), the left and right sides of the rubber sleeve (98) are fixedly connected to third sliding blocks (97), the two third sliding blocks (97) are respectively slidably connected in third sliding grooves provided on the left and right sides of the inner wall of the pen sleeve (94), one end of the marking pen (91) is arranged in the rubber sleeve (98), and the other end of the marking pen (91) passes through the outside of the pen cap (92); The upper and lower sides of the pen cap (92) are fixedly connected with a second slider (95), the second slider (95) is slidably connected in a second slide groove, and the two second slide grooves are respectively provided on the upper and lower sides of the inner wall of the through hole (44); The dust cleaning mechanism (8) comprises a U-shaped shell (83) fixedly connected to the lower surface of the support rod (12), a dust cleaning roller (84) is arranged in the U-shaped shell (83), the dust cleaning roller (84) is clamped on the outer surface of the fixed shaft, the fixed shaft is rotatably connected in the U-shaped shell (83), a second gear (85) is clamped on the outer surface of the fixed shaft, the second gear (85) is meshed with a third gear (86), the third gear (86) is fixedly connected to the right end of the first rotating shaft (82), the first rotating shaft (82) is sleeved in a first bearing clamped on the left side of the U-shaped shell (83), the left end of the first rotating shaft (82) is fixedly connected to the first gear (81), and the first gear (81) is in contact with one end of the transmission mechanism (7).

2. The auxiliary line-drawing device for prefabricated hydropower installation according to claim 1, characterized in that, The adjusting mechanism (6) includes a T-shaped groove formed on the upper surface of the bottom plate (1). A T-shaped block (64) is slidably connected in the T-shaped groove. The upper surface of the T-shaped block (64) is fixedly connected with a housing (61). The upper surface of the inner wall of the housing (61) is rotatably connected with a threaded column (65). A threaded nut (66) is threadedly connected to the outer surface of the threaded column (65). The front surface of the threaded nut (66) is fixedly connected with a cylindrical block (67). The front surface of the cylindrical block (67) passes through a through hole (62) formed in the front surface of the housing (61) and extends into a sliding hole (11). The bottom end of the threaded column (65) is fixedly connected with a first bevel gear (68). The first bevel gear (68) meshes with a second bevel gear (69). The front surface of the second bevel gear (69) is fixedly connected with a handwheel (63) through a second rotating shaft (610). The second rotating shaft (610) is clamped in a second bearing clamped on the front surface of the housing (61).

3. An auxiliary line-drawing device for prefabricated hydropower installation according to claim 1, characterized in that, The front surface of the first slider (3) is fixedly connected with a protractor (5). The protractor (5) is located behind the fixed rod and to the right of the pin shaft (10).

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