Adjustable ruling machine for highway construction

Abstract

The invention relates to the technical field of road traffic marking devices, in particular to an adjustable marking machine for road construction, which comprises a cart, a material barrel for filling spraying raw materials is fixedly mounted at the upper end of the cart, an adjusting cylinder is fixedly mounted at the upper end of the cart, and an adjusting device capable of adjusting pigment flow is arranged in the adjusting cylinder. A pressure relief pipe is fixedly connected to the upper end of the material barrel, the free end of the pressure relief pipe is fixedly connected with the adjusting barrel, an expansion box is fixedly installed at the bottom end of the cart, and stabilizing wheels are rotatably installed at the bottom end of the expansion box. The flow efficiency of the pigment is greatly reduced, finally, the pigment sprayed out of the nozzle is not uniform, the line color becomes light, at the moment, workers can adjust the speed in time, and unnecessary rework is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of road traffic marking devices, in particular to an adjustable marking machine for highway construction. Background Art

[0002] During highway construction, road marking is an important step to ensure clear traffic signs and standardized road markings. Traditional road marking machines usually have fixed widths and single functions, which makes it difficult to meet the needs of different highway construction scenarios, such as wide-width road marking on multiple lanes, narrow-width road marking on small sections, or non-straight-line road marking under complex road conditions.

[0003] After searching, it was found that the prior art announcement number is CN221989066U, which discloses a highway marking machine, which includes: a frame, a cleaning component and a spraying component are respectively installed on both sides of the top outer wall of the frame, and a drying component is installed on the top outer wall of the frame. The cleaning component includes two support rods and two blowers, and the two support rods and the two blowers are respectively installed on the top outer wall of the frame. The top of the two support rods is installed with a mounting pipe connected to the two blowers, and a shell is installed at one end of the mounting pipe. When this scheme is used, the two blowers will start, so that air enters the inside of the shell through the mounting pipe, and then blows to the ground, so as to clean up the debris such as stones and leaves on the ground, and prevent the debris from affecting the quality of the marking line marked by the marking machine.

[0004] Therefore, based on the above search and combined with the existing technology, when the above scheme is used, although the cleaning device can operate fully automatically, workers still need to pay attention to the cleanliness of the ground, which causes part of their energy to be dispersed, making it difficult to ensure the consistency of the cart's forward speed. If the cart speed is too fast and the paint spraying amount is insufficient, the line color will be sparse, the thickness will be uneven, or even the line will be broken; if the speed is too slow, too much paint will accumulate, resulting in problems such as too thick lines or flowing lines. Based on this, we proposed an adjustable marking machine for highway construction. Summary of the invention

[0005] The object of the present invention is to provide an adjustable road marking machine for highway construction to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable marking machine for highway construction, comprising a cart, a material barrel for filling spraying raw materials is fixedly installed on the upper end of the cart, an extension frame is rotatably installed on the upper end of the cart, a material delivery pipe is fixedly connected to the left end of the extension frame, and a plurality of nozzles capable of spraying neat lines are fixedly installed on the output end of the material delivery pipe, a compressor is fixedly installed on the upper end of the cart, a compressed air pipe is fixedly connected to the output end of the compressor, and a free end of the compressed air pipe is fixedly connected to the upper end of the material barrel, an adjusting cylinder is fixedly installed on the upper end of the cart, the adjusting cylinder is located on the left side of the material barrel, an adjusting device capable of adjusting the flow rate of pigment is arranged inside the adjusting cylinder, a pressure relief pipe is fixedly connected to the upper end of the material barrel, and the free end of the pressure relief pipe is fixedly connected to the adjusting cylinder, an extension box is fixedly installed on the bottom end of the cart, and a stabilizing wheel is rotatably installed on the bottom end of the extension box.

[0007] As a further solution of the present invention, a center tube is fixedly installed on the inner bottom end of the barrel, an isolation plate is fixedly installed on the inner bottom end of the barrel, a movable cylinder is sleeved on the outer surface of the center tube, a floating ring capable of detecting the height of the paint in the barrel is installed on the bottom end of the movable cylinder, and whether the paint is used up can be judged by the floating height of the floating ring.

[0008] As a further solution of the present invention, a delivery tube for outputting pigment is fixedly installed at the inner bottom end of the barrel, and the delivery tube is fixedly connected to the center tube, an inlet is opened at the upper end of the delivery tube, and a stop plug is slidably installed at the inner end of the delivery tube, and the output end of the delivery tube is fixedly connected to the adjusting cylinder.

[0009] As a further solution of the present invention, a synchronization rod is fixedly installed on the inner upper end of the movable cylinder, an abutment ring is fixedly installed on the bottom end of the synchronization rod, a synchronization tube is fixedly installed on the left end of the stop plug, and the bottom end of the abutment ring corresponds to the left end of the synchronization tube.

[0010] As a further solution of the present invention, the adjustment device includes a synchronous sleeve, which is slidably installed on the inner end of the adjusting cylinder, and the left end of the synchronous sleeve is fixedly connected to a deformation tube whose diameter can be freely changed, and the output end of the deformation tube is fixedly connected to the feed pipe, and the inner end of the adjusting cylinder is slidably installed with an adjustment sleeve that can change the shape of the deformation tube, and the adjustment sleeve moves toward the right to squeeze the deformation tube so that its diameter is gradually reduced, thereby achieving the ability to change the shape of the deformation tube in a smooth state.

[0011] As a further solution of the present invention, the left end of the adjusting sleeve is provided with a corrugated tube, the inner end of the adjusting sleeve is fixedly installed with a stabilizing ring, the stabilizing ring is located on the outer surface of the corrugated tube, the inner end of the adjusting sleeve is slidably installed with a passive ring, the passive ring is located on the left side of the stabilizing ring, and the passive ring is connected to the adjusting sleeve through a reset spring, the passive ring is respectively abutted against the left end of the corrugated tube and the adjusting sleeve, and a plurality of stabilizing sleeves are fixedly installed on the outer surface of the stabilizing ring, and the stabilizing sleeves are arranged in a ring shape.

[0012] As a further solution of the present invention, a plurality of stabilizing rods are fixedly installed on the right end of the passive ring, the stabilizing rods correspond to the stabilizing sleeve, and the stabilizing rods are slidably connected to the stabilizing sleeve, a contact block is slidably installed on the inner end of the stabilizing sleeve, and the bottom end of the contact block contacts the outer surface of the corrugated tube.

[0013] As a further solution of the present invention, an air cylinder is fixedly installed on the inner bottom end of the expansion box, a telescopic rod is fixedly installed on the inner end of the adjustment cylinder, the telescopic tube of the telescopic rod is fixedly connected to the adjustment sleeve, and the telescopic rod and the air cylinder are fixedly connected through an air pipe, and a movable column is slidably connected to the inner bottom end of the air cylinder.

[0014] As a further solution of the present invention, a movable rod is fixedly installed on the upper end of the movable column, a stabilizing plate is fixedly installed on the outer surface of the movable rod, and a movable plate is slidably installed on the outer surface of the movable rod, the movable plate is located above the stabilizing plate, and the outer surface of the movable plate is tightly fitted with the inner wall of the air cylinder, a star-shaped block is fixedly installed on the inner end of the stabilizing wheel, an abutment wheel is rotatably installed on the bottom end of the movable column, and the outer surface of the abutment wheel is in contact with the outer surface of the star-shaped block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the present invention is used, when the worker pushes the cart too fast, the pigment will form eddies in the deformation tube, so that the fluid is affected by the mutual collision of the eddies during the flow process, resulting in a significant reduction in the flow efficiency of the pigment, so that the pigment finally sprayed from the nozzle will be uneven, and the color of the lines on the road will become lighter, thereby enabling the worker to adjust the speed in time and avoid unnecessary rework;

[0017] 2. When the present invention is used, after the marking is completed, the pressure inside the barrel is used to completely remove the residual pigment inside the pipeline, thereby reducing the cost of using cleaning solvents and the workload of manual cleaning, making the operation more convenient, while also reducing the risk of clogging the spray pipeline and nozzle, ensuring smooth operation of the equipment;

[0018] 3. When the present invention is used, when the temperature inside the barrel becomes low, the feeding and spraying operation will be stopped. The low temperature may make the pigment thicker and reduce its fluidity, which is easy to gather in the pipe and nozzle and cause blockage, thus preventing the paint from entering the pipe and nozzle to solidify or condense. The residual pigment in the pipe will be quickly discharged by the pressure of the barrel, further avoiding the pipe being blocked by the pigment, and the workers can also find and repair the fault in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an adjustable road marking machine for highway construction;

[0020] Figure 2 It is a schematic diagram of the structure inside the barrel;

[0021] Figure 3 It is a schematic diagram of the structure inside the movable cylinder and the conveying pipe;

[0022] Figure 4 It is a schematic diagram of the structure inside the regulating cylinder;

[0023] Figure 5 It is a schematic diagram of the structure of the adjustment device;

[0024] Figure 6 This is the disassembly diagram of the adjustment sleeve and the synchronization tube;

[0025] Figure 7 It is a structural schematic diagram of the stabilizer bar;

[0026] Figure 8 It is a schematic diagram of the structure inside the movable sleeve;

[0027] Fig. 9 This is a schematic diagram of the structure inside the expansion box;

[0028] Fig.10 It is a schematic diagram of the structure inside the gas cylinder;

[0029] Fig.11 Schematic diagram of the internal structure of the pressure relief pipe.

[0030] In the figure: 1. cart; 2. compressor; 3. compressed air pipe; 4. pressure relief pipe; 5. barrel; 6. extension rack; 7. adjustment cylinder; 8. expansion box; 11. feed pipe; 12. nozzle; 13. positioning rod;

[0031] 101, stabilizing wheel; 102, air cylinder; 103, air pipe; 104, movable sheet; 105, movable column; 106, abutting wheel; 107, star-shaped block; 108, movable rod; 109, stabilizing sheet;

[0032] 201, movable cylinder; 202, floating ring; 203, central tube; 204, delivery tube; 205, heat-resistant sleeve; 206, abutment ring; 207, voltage-stabilizing tube; 208, synchronization tube; 209, stop plug; 210, synchronization rod;

[0033] 301, reset spring; 302, corrugated tube; 303, deformation tube; 304, synchronization sleeve; 305, telescopic rod; 306, adjustment sleeve; 307, stabilizing ring; 308, passive ring; 309, stabilizing rod; 310, stabilizing sleeve; 311, contact block; 312, movable sleeve; 313, stabilizing column; 314, abutment spring;

[0034] 401, unlocking tube; 402, venting tube; 403, sealing ball; 404, ventilation groove; 405, reset column. DETAILED DESCRIPTION

[0035] 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.

[0036] Example 1: Please refer to Figures 1-2 , an adjustable marking machine for highway construction, including a cart 1, a barrel 5 for filling spraying raw materials is fixedly installed on the upper end of the cart 1, the pigment in the barrel 5 has a certain viscosity, an extension frame 6 is rotatably installed on the upper end of the cart 1 by bolts, the extension frame 6 is located on the left side of the barrel 5, and a feed pipe 11 is fixedly connected to the left end of the extension frame 6. The feed pipe 11 is made of metal, and a plurality of nozzles 12 capable of spraying neat lines are fixedly installed at the output end of the feed pipe 11. The nozzles 12 are made of ceramics and have the characteristics of corrosion resistance and wear resistance, and a positioning rod 13 for positioning the preset line on the ground is fixedly installed at the bottom end of the extension frame 6. When in use, the positioning rod 13 is parallel to the reference line pre-drawn on the ground;

[0037] A compressor 2 is fixedly installed on the upper end of the cart 1, and a compressed air pipe 3 is fixedly connected to the output end of the compressor 2. The free end of the compressed air pipe 3 is fixedly connected to the upper end of the barrel 5. The compressor 2 can provide sufficient pressure in the barrel 5, thereby ensuring that the raw materials in the barrel 5 can be quickly squeezed out. A heating furnace for heating the barrel 5 is also fixedly installed on the upper end of the cart 1 to ensure that the pigment in the barrel 5 can be maintained at a constant temperature so that the raw materials can have sufficiently high fluidity at the current temperature. An adjusting cylinder 7 is fixedly installed on the upper end of the cart 1. The adjusting cylinder 7 is located on the left side of the barrel 5. An adjusting device capable of adjusting the pigment flow rate is arranged inside the adjusting cylinder 7. A pressure relief pipe 4 is fixedly connected to the upper end of the barrel 5. The free end of the pressure relief pipe 4 is fixedly connected to the adjusting cylinder 7. An expansion box 8 is fixedly installed on the bottom end of the cart 1. A stabilizing wheel 101 is rotatably installed on the bottom end of the expansion box 8. Two rollers are rotatably installed on the right bottom end of the cart 1.

[0038] like Figure 2 , Figure 3 As shown, a central tube 203 is fixedly installed at the inner bottom end of the barrel 5, an isolation plate is fixedly installed at the inner bottom end of the barrel 5, a movable cylinder 201 is sleeved on the outer surface of the central tube 203, a floating ring 202 capable of detecting the height of the pigment inside the barrel 5 is installed at the bottom end of the movable cylinder 201, and the floating ring 202 is a hollow annular metal steel pipe, a delivery pipe 204 for outputting the pigment is fixedly installed at the inner bottom end of the barrel 5, and the delivery pipe 204 is fixedly connected to the central tube 203, an inlet is opened at the upper end of the delivery pipe 204, and the delivery pipe 204 is fixedly connected to the central tube 203, and an inlet is opened at the upper end of the delivery pipe 204. 04 is slidably mounted with a stopper plug 209, the inner end of the stopper plug 209 is provided with a flow hole for the flow of pigment, the flow hole is "L" shaped, the input end of the flow hole corresponds to the feed port, and the output end corresponds to the inside of the delivery tube 204. Specifically, a rectangular groove is provided on the outer surface of the stopper plug 209, and a rectangular block is fixedly mounted on the inner end of the delivery tube 204, and the rectangular block is located in the rectangular groove, so that the stopper plug 209 will not rotate when moving left and right in the delivery tube 204, and the output end of the delivery tube 204 is fixedly connected to the adjustment cylinder 7;

[0039] A synchronization rod 210 is fixedly installed on the inner upper end of the movable cylinder 201, and an abutment ring 206 is fixedly installed on the bottom end of the synchronization rod 210. A synchronization tube 208 is fixedly installed on the left end of the stop plug 209. The bottom end of the abutment ring 206 corresponds to the left end of the synchronization tube 208. The bottom end of the abutment ring 206 is triangular, and the left end edge of the synchronization tube 208 is arc-shaped. When the pigment inside the barrel 5 reaches the bottom, the buoyancy of the floating ring 202 drives the movable cylinder 201 to move downward, and then the movable cylinder 201 moves downward through the synchronization rod 210 so that the abutment ring 206 contacts the left end of the synchronization tube 208, and the synchronization tube 208 moves to the right under the extrusion of the triangular slope surface, so that the flow hole input end of the inner end of the stop plug 209 no longer corresponds to the feed port, and the feeding is stopped;

[0040] A heat-resistant sleeve 205 is fixedly installed on the outer surface of the synchronization rod 210. The heat-resistant sleeve 205 is composed of two layers of metals of different materials and can expand or shrink with changes in temperature. A voltage-stabilizing tube 207 is fixedly connected to the bottom end of the heat-resistant sleeve 205. The voltage-stabilizing tube 207 is passed through the interior of the synchronization rod 210, and the free end of the voltage-stabilizing tube 207 is passed through the interior of the synchronization tube 208. When the temperature of the pigment inside the barrel 5 drops, the fluidity will deteriorate, which will cause blockage in the pipeline. At this time, the heat-resistant sleeve 205 begins to shrink under the change of temperature and begins to squeeze the air inside, which is then transmitted to the interior of the synchronization tube 208 through the voltage-stabilizing tube 207 and pushes the synchronization tube 208 to move to the right, so that the pigment no longer flows.

[0041] Example 2: Please refer to Figure 4 , Figure 5 , Figure 6 , an adjustable marking machine for highway construction, based on embodiment 1, the adjustment device includes a synchronous sleeve 304, the synchronous sleeve 304 is slidably installed on the inner end of the adjustment cylinder 7, and the delivery pipe 204 is slidably connected to the synchronous sleeve 304, the outer surface of the synchronous sleeve 304 is provided with an input port, the input port is parallel to the output end of the delivery pipe 204, the left end of the synchronous sleeve 304 is fixedly connected with a deformation tube 303 that can freely change the diameter, and the output end of the deformation tube 303 is fixedly connected to the delivery pipe 11, the deformation tube 303 is a metal hose, which has excellent flexibility, can freely change the shape, and has good pressure resistance and high temperature resistance. The diameter of the deformation tube 303 is larger than the diameter of the delivery pipe 11, and the diameter of the deformation tube 303 is also larger than the diameter of the synchronous sleeve 304, the inner end of the adjustment cylinder 7 is slidably installed with an adjustment sleeve 306 that can change the shape of the deformation tube 303, the adjustment sleeve A plurality of strip blocks are fixedly installed at the inner end of 306. The strip blocks are distributed in a ring shape and squeeze the outer surface of the deformation tube 303 into a star shape, so that it can be squeezed and shrunk better. The inner end of the adjusting sleeve 306 is funnel-shaped. The inner left diameter of the adjusting sleeve 306 is the same as the diameter of the feeding pipe 11. The adjusting sleeve 306 moves to the right to squeeze the deformation tube 303 to reduce its diameter step by step, so that the diameters of the synchronization sleeve 304, the deformation tube 303 and the feeding pipe 11 are the same, and the flow efficiency of the pigment remains unchanged. If the diameter of the deformation tube 303 becomes larger, when the liquid passes through the deformation tube 303, the pigment will form an eddy in the deformation tube 303, so that the fluid is affected by the mutual collision of the eddy during the flow process, resulting in a significant reduction in the flow efficiency of the pigment, so that the pigment finally sprayed from the nozzle 12 will be uneven, and the color of the lines appearing on the road will become lighter.

[0042] like Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the left end of the adjusting sleeve 306 is sleeved with a corrugated tube 302, and the inner end of the adjusting sleeve 7 is fixedly installed with a stabilizing ring 307, which is located on the outer surface of the corrugated tube 302. The corrugated tube 302 can move a certain distance left and right on the outer surface of the adjusting sleeve 306, but does not separate from the adjusting sleeve 306. A passive ring 308 is slidably installed on the inner end of the adjusting sleeve 7, and the passive ring 308 is located on the left side of the stabilizing ring 307. The passive ring 308 is connected to the adjusting sleeve 7 through a reset spring 301. The passive ring 308 abuts against the left ends of the corrugated tube 302 and the adjusting sleeve 306 respectively, and a plurality of stabilizing sleeves 310 are fixedly installed on the outer surface of the stabilizing ring 307, and the stabilizing sleeves 310 are arranged in a ring shape.

[0043] A plurality of stabilizing rods 309 are fixedly installed at the right end of the passive ring 308. The stabilizing rods 309 correspond to the stabilizing sleeve 310, and the stabilizing rods 309 are slidably connected to the stabilizing sleeve 310. A contact block 311 is slidably installed at the inner end of the stabilizing sleeve 310, and the bottom end of the contact block 311 contacts the outer surface of the corrugated tube 302. Since the outer surface of the corrugated tube 302 is a continuous wave shape, the bottom end of the contact block 311 is clamped at the trough of the outer surface of the corrugated tube 302. Therefore, when the corrugated tube 302 moves to the left, it can only move upward by squeezing the contact block 311, and the corrugated tube 302 can continue to move to the left.

[0044] A plurality of stabilizing columns 313 are fixedly mounted at the bottom end of the stabilizing rod 309. The stabilizing columns 313 correspond to the stabilizing sleeves 310. A movable sleeve 312 is sleeved on the outer surface of the stabilizing columns 313. The movable sleeve 312 and the stabilizing columns 313 are connected by abutting springs 314. The movable sleeve 312 moves to the left and abuts against the upper end of the contact block 311.

[0045] like Figure 4 , Fig. 9 , Fig.10 As shown, the inner bottom end of the expansion box 8 is fixedly installed with a gas cylinder 102, the inner end of the adjustment cylinder 7 is fixedly installed with a telescopic rod 305, the telescopic tube of the telescopic rod 305 is fixedly connected with the adjustment sleeve 306, and the telescopic rod 305 is fixedly connected with the gas cylinder 102 through the gas delivery pipe 103, the outer surface of the gas cylinder 102 is provided with a plurality of air inlet holes, the air inlet holes are located below the gas cylinder 102, the inner bottom end of the gas cylinder 102 is slidably connected with a movable column 105, and the outer surface of the movable column 105 is provided with a rectangular shaped groove, a rectangular block is fixedly installed at the inner end of the air cylinder 102, and the rectangular block is located in the rectangular groove to prevent the movable column 105 from rotating when sliding up and down, and a movable rod 108 is fixedly installed at the upper end of the movable column 105, and a stabilizing sheet 109 is fixedly installed on the outer surface of the movable rod 108, and a movable sheet 104 is slidably installed on the outer surface of the movable rod 108, and the movable sheet 104 is located above the stabilizing sheet 109, and the outer surface of the movable sheet 104 is tightly fitted with the inner wall of the air cylinder 102;

[0046] Specifically, a sealing rubber sleeve is fixedly installed on the outer surface of the movable sheet 104, and the sealing rubber sleeve is tightly fitted with the inner wall of the air cylinder 102 to increase air tightness. A plurality of air holes are opened on the outer surface of the movable sheet 104, and a sealing rubber sleeve is fixedly installed on the upper end of the stabilizing sheet 109. When the movable rod 108 moves upward, the upper end of the stabilizing sheet 109 is fitted with the bottom end of the movable sheet 104, thereby pushing the air above the movable sheet 104 into the telescopic rod 305 through the air delivery pipe 103;

[0047] like Fig.10 As shown, a star-shaped block 107 is fixedly installed on the inner end of the stabilizing wheel 101, and an abutment wheel 106 is rotatably installed on the bottom end of the movable column 105, and the outer surface of the abutment wheel 106 is in contact with the outer surface of the star-shaped block 107. When the star-shaped block 107 rotates, the movable column 105 can move up and down reciprocatingly under the action of the abutment wheel 106 contacting its outer surface, and the movable sheet 104 and the stabilizing sheet 109 are continuously opened and closed, so that the air can be continuously transported out.

[0048] Example 3: Please refer to Figure 4 , Fig.11 , an adjustable marking machine for highway construction, based on the embodiment 1, a deflation pipe 402 is fixedly installed on the right end of the synchronous sleeve 304, the deflation pipe 402 and the adjustment sleeve 306 are fixedly connected by a transmission rod, and the output end of the pressure relief pipe 4 is sleeved on the outer surface of the deflation pipe 402, a sealing ball 403 is arranged on the right side of the deflation pipe 402, the outer surface of the sealing ball 403 is tightly fitted on the pipe mouth of the deflation pipe 402, and a ventilation groove 404 for gas flow is opened at the inner end of the pressure relief pipe 4, and an unlocking pipe 401 capable of accommodating the sealing ball 403 is fixedly connected to the upper end of the pressure relief pipe 4, and a reset column 405 is slidably installed on the inner end of the unlocking pipe 401, and the reset column 405 and the unlocking pipe 401 are connected by a spring piece;

[0049] Then when the vent pipe 402 moves to the right, until the sealing ball 403 corresponds to the unlocking pipe 401, the high-pressure gas will blow the sealing ball 403 into the unlocking pipe 401 along the ventilation groove 404. At this time, the synchronous sleeve 304 is no longer connected to the conveying pipe 204, and the residual pigment inside the deformation tube 303 and the conveying pipe 11 is drained by air pressure to avoid blockage.

[0050] The working principle of the present invention is:

[0051] When in use, fill the barrel 5 with paint, start the compressor 2, and the compressor 2 begins to pressurize the barrel 5. At this time, the road marking operation begins, and the cart 1 is pushed along the predetermined route. During the rolling process, the stabilizing wheel 101 drives the movable column 105 to continuously reciprocate up and down through the star-shaped block 107, so that the air cylinder 102 continuously inflates the telescopic rod 305, and then the telescopic end of the telescopic rod 305 pushes the adjusting sleeve 306 to move to the left, so that the corrugated tube 302 and the adjusting sleeve 306 push the passive ring 308 to move to the left together, and squeeze the reset spring 301. The movement of the passive ring 308 drives the stabilizing rod 309 to move, so that the movable sleeve 312 corresponds to the contact block 311, and the movement of the adjusting sleeve 306 is blocked;

[0052] At this time, the pigment in the barrel 5 flows into the deformation tube 303 along the delivery pipe 204 under the action of pressure, and is finally sprayed out from the nozzle 12. If the worker pushes the cart 1 too fast, the stabilizing wheel 101 rotates too fast, and the movable column 105 moves up and down faster, the air cylinder 102 begins to frequently add air to the telescopic rod 305, so that the force of moving the adjusting sleeve 306 is too large. Then, the diameter of the deformation tube 303 also increases. When the liquid passes through the deformation tube 303, the pigment will form an eddy current in the deformation tube 303, so that the fluid is affected by the mutual collision of the eddy currents during the flow process, resulting in a greatly reduced flow efficiency of the pigment, so that the pigment finally sprayed out from the nozzle 12 will be uneven, and the color of the lines appearing on the road will become lighter, which can clearly warn the worker that the pushing speed is too fast and let the worker push at a reasonable speed.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed in the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable road marking machine for road construction, comprising a cart (1), characterized in that: A barrel (5) for filling spraying raw materials is fixedly installed on the upper end of the cart (1), an extension frame (6) is rotatably installed on the upper end of the cart (1), a feed pipe (11) is fixedly connected to the left end of the extension frame (6), and a plurality of nozzles (12) capable of spraying neat lines are fixedly installed on the output end of the feed pipe (11), a compressor (2) is fixedly installed on the upper end of the cart (1), and a compressed air pipe (3) is fixedly connected to the output end of the compressor (2), and the free end of the compressed air pipe (3) is connected to the material barrel. The upper end of the barrel (5) is fixedly connected, an adjusting cylinder (7) is fixedly installed on the upper end of the cart (1), the adjusting cylinder (7) is located on the left side of the barrel (5), and an adjusting device capable of adjusting the flow rate of pigment is arranged inside the adjusting cylinder (7), the upper end of the barrel (5) is fixedly connected to a pressure relief pipe (4), and the free end of the pressure relief pipe (4) is fixedly connected to the adjusting cylinder (7), and an expansion box (8) is fixedly installed on the bottom end of the cart (1), and a stabilizing wheel (101) is rotatably installed on the bottom end of the expansion box (8).

2. The adjustable road marking machine for highway construction according to claim 1, characterized in that: A central tube (203) is fixedly mounted on the inner bottom end of the barrel (5), an isolation plate is fixedly mounted on the inner bottom end of the barrel (5), a movable cylinder (201) is sleeved on the outer surface of the central tube (203), and a floating ring (202) capable of detecting the height of the pigment in the barrel (5) is mounted on the bottom end of the movable cylinder (201).

3. The adjustable road marking machine for highway construction according to claim 2, characterized in that: A delivery pipe (204) for outputting pigment is fixedly installed at the inner bottom end of the barrel (5), and the delivery pipe (204) is fixedly connected to the central pipe (203). An inlet is provided at the upper end of the delivery pipe (204), and a stopper (209) is slidably installed at the inner end of the delivery pipe (204). The output end of the delivery pipe (204) is fixedly connected to the regulating cylinder (7).

4. The adjustable road marking machine for highway construction according to claim 3, characterized in that: A synchronization rod (210) is fixedly mounted on the inner upper end of the movable cylinder (201), an abutment ring (206) is fixedly mounted on the bottom end of the synchronization rod (210), a synchronization tube (208) is fixedly mounted on the left end of the stop plug (209), and the bottom end of the abutment ring (206) corresponds to the left end of the synchronization tube (208).

5. The adjustable road marking machine for highway construction according to claim 1, characterized in that: The adjustment device comprises a synchronous sleeve (304), the synchronous sleeve (304) being slidably mounted on the inner end of the adjustment cylinder (7), the left end of the synchronous sleeve (304) being fixedly connected with a deformable tube (303) capable of freely changing the diameter, and the output end of the deformable tube (303) being fixedly connected with the feed pipe (11), the inner end of the adjustment cylinder (7) being slidably mounted with an adjusting sleeve (306) capable of changing the shape of the deformable tube (303), and the adjusting sleeve (306) being moved toward the right side to squeeze the deformable tube (303) so that its diameter is gradually reduced.

6. The adjustable road marking machine for highway construction according to claim 5, characterized in that: The left end of the adjusting sleeve (306) is sleeved with a corrugated tube (302); a stabilizing ring (307) is fixedly mounted on the inner end of the adjusting sleeve (7); the stabilizing ring (307) is located on the outer surface of the corrugated tube (302); a passive ring (308) is slidably mounted on the inner end of the adjusting sleeve (7); the passive ring (308) is located on the left side of the stabilizing ring (307); the passive ring (308) and the adjusting sleeve (7) are connected via a reset spring (301); the passive ring (308) abuts against the left ends of the corrugated tube (302) and the adjusting sleeve (306) respectively; and a plurality of stabilizing sleeves (310) are fixedly mounted on the outer surface of the stabilizing ring (307); the stabilizing sleeves (310) are arranged in a ring shape.

7. The adjustable road marking machine for highway construction according to claim 6, characterized in that: A plurality of stabilizing rods (309) are fixedly mounted on the right end of the passive ring (308), the stabilizing rods (309) correspond to the stabilizing sleeve (310), and the stabilizing rods (309) are slidably connected to the stabilizing sleeve (310), a contact block (311) is slidably mounted on the inner end of the stabilizing sleeve (310), and the bottom end of the contact block (311) contacts the outer surface of the corrugated tube (302).

8. The adjustable road marking machine for highway construction according to claim 1, characterized in that: An air cylinder (102) is fixedly mounted on the inner bottom end of the expansion box (8), a telescopic rod (305) is fixedly mounted on the inner end of the adjustment cylinder (7), a telescopic tube of the telescopic rod (305) is fixedly connected to an adjustment sleeve (306), and the telescopic rod (305) is fixedly connected to the air cylinder (102) via an air delivery pipe (103), and a movable column (105) is slidably connected to the inner bottom end of the air cylinder (102).

9. The adjustable road marking machine for highway construction according to claim 8, characterized in that: A movable rod (108) is fixedly mounted on the upper end of the movable column (105), a stabilizing plate (109) is fixedly mounted on the outer surface of the movable rod (108), and a movable plate (104) is slidably mounted on the outer surface of the movable rod (108), the movable plate (104) is located above the stabilizing plate (109), and the outer surface of the movable plate (104) is tightly fitted with the inner wall of the air cylinder (102), a star-shaped block (107) is fixedly mounted on the inner end of the stabilizing wheel (101), and an abutment wheel (106) is rotatably mounted on the bottom end of the movable column (105), and the outer surface of the abutment wheel (106) is in contact with the outer surface of the star-shaped block (107).

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