Pretreatment construction device for traffic road maintenance

Abstract

The invention relates to the technical field of traffic road maintenance, and discloses a pretreatment construction device for traffic road maintenance, which solves the problem of poor compaction effect on asphalt raw materials at present, and comprises a sweeping board, a handrail is fixedly connected to the top of the sweeping board, and supporting legs are fixedly connected to positions, close to four corners, of the bottom of the sweeping board. Rollers are arranged at the bottom ends of the supporting legs, a compacting mechanism and a filling mechanism are arranged on the vehicle plate, a fixing mechanism is arranged on the compacting mechanism, the compacting mechanism comprises a first U-shaped round rod fixed to the bottom of the vehicle plate, the outer side of the first U-shaped round rod is movably sleeved with a U-shaped plate, an adjusting motor is fixedly installed on the inner side of the U-shaped plate, and a screw is fixedly connected to the adjusting motor; the end, away from the adjusting motor, of the screw is rotationally connected with the U-shaped plate. According to the device, asphalt raw materials remaining on the surface of the compression roller can be scraped and collected, so that the surface of the compression roller can be cleaned conveniently, and the compaction effect is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of traffic road maintenance, and particularly relates to a pretreatment construction device for traffic road maintenance. BACKGROUND

[0002] In the field of traffic road maintenance, timely and effective pretreatment repair of road gaps is crucial to ensure the flatness and driving safety of the road. At present, a common road gap repair method is to fill asphalt raw materials into the gaps and then use a compression roller to compact the asphalt and road base to make the asphalt and the road base tightly combined and the road surface flat. However, the compression roller in the existing construction device is generally of a fixed structure and difficult to disassemble, which causes a large amount of asphalt raw materials to remain on the surface of the compression roller after each construction, and the remaining asphalt hardens and forms clumps over time, which not only affects the compaction effect of the compression roller in the next construction but also increases the cleaning difficulty. SUMMARY

[0003] In view of the above problems, the present application provides a pretreatment construction device for traffic road maintenance to effectively solve the problem of poor compaction effect of asphalt raw materials.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a pretreatment construction device for traffic road maintenance, comprising a vehicle plate, a handrail fixedly connected to the top of the vehicle plate, a supporting leg fixedly connected to the bottom of the vehicle plate near each corner, a roller arranged at the bottom end of each supporting leg, a compaction mechanism and a filling mechanism arranged on the vehicle plate, and a fixing mechanism arranged on the compaction mechanism. The compaction mechanism comprises a U-shaped round rod one fixed to the bottom of the vehicle plate, a U-shaped plate movably sleeved on the outer side of the U-shaped round rod one, an adjusting motor fixedly installed on the inner side of the U-shaped plate, a screw rod fixedly connected to the adjusting motor, the screw rod rotatably connected to the U-shaped plate at the end away from the adjusting motor, a screw sleeve threadedly sleeved on the outer side of the screw rod, the screw sleeve located below the U-shaped round rod one, a limiting groove arranged on the bottom of the U-shaped plate, the screw sleeve slidably connected to the limiting groove, a compression roller rotatably connected to the outer side of the screw sleeve below the U-shaped plate, an L-shaped plate fixedly sleeved on the outer side of the U-shaped round rod one, a positioning groove arranged on the outer side of the L-shaped plate, a positioning rod fixedly connected to the inner side of the positioning groove, a positioning plate sleeved on the outer side of the positioning rod, the positioning plate inserted into the positioning groove, an installation ring fixedly connected to the bottom of the positioning plate, a semicircular collecting cylinder fixedly installed on the outer side of the installation ring, a conical hollow blade fixedly connected to the side of the installation ring close to the compression roller, the conical hollow blade located at the same height as the compression roller, and the semicircular collecting cylinder located below the conical hollow blade.

[0005] Preferably, a butt ring is fixedly sleeved on the outer side of the U-shaped round rod one, and the U-shaped plate is butted to the bottom of the butt ring.

[0006] Preferably, the top of the vehicle plate is fixedly provided with an L-shaped seat one, an electric push rod is fixedly installed on the inner top wall of the L-shaped seat one, a stand is fixedly connected to the output end of the electric push rod, and the bottom end of the stand is fixed to the top of the U-shaped plate.

[0007] Preferably, the fixing mechanism comprises a sliding rod fixed to the inner side of the positioning groove, a sliding block movably sleeved on the outer side of the sliding rod, a handle fixedly connected to the outer side of the sliding block, a spring fixedly connected between the top of the sliding block and the inner top wall of the positioning groove, the spring being sleeved on the outer side of the sliding rod, and two insertion rods fixedly connected to the bottom of the sliding block.

[0008] Preferably, the top of the positioning plate is fixedly connected with two insertion rings in a symmetrical manner, and the two insertion rods are inserted into the two insertion rings, respectively.

[0009] Preferably, the filling mechanism comprises a heating barrel fixed to the top of the vehicle plate, a booster pump fixedly installed on the top of the vehicle plate, a material extraction pipe fixedly connected between the booster pump and the bottom end of the heating barrel, a corrugated hose one fixedly connected to the booster pump, and a nozzle fixedly connected to the end of the corrugated hose one away from the booster pump and extending below the vehicle plate.

[0010] Preferably, the top of the vehicle plate is fixedly provided with a treatment box, a suction fan is fixedly installed on the top of the treatment box, a suction pipe is fixedly connected between the suction fan and the treatment box, a corrugated hose two is fixedly connected to the outer side of the treatment box, a hard pipe is fixedly connected to the bottom end of the corrugated hose two and extends below the vehicle plate, a dust suction cover is fixedly connected to the bottom end of the hard pipe, and the nozzle is located between the dust suction cover and the compression roller.

[0011] Preferably, the bottom of the vehicle plate is fixedly connected with a U-shaped round rod two, the U-shaped round rod two is located between the nozzle and the dust suction cover, a lifting plate two is movably sleeved on the outer side of the U-shaped round rod two from top to bottom, a support is fixedly connected to the outer side of the lifting plate two, the support is fixedly sleeved on the outer side of the nozzle, and a lifting plate one is fixedly sleeved on the outer side of the hard pipe.

[0012] Preferably, the top of the vehicle plate is fixedly provided with an L-shaped seat two, a bidirectional screw rod is rotatably connected to the inner top wall of the L-shaped seat two, a forward-reverse motor is fixedly connected to the bottom end of the bidirectional screw rod, the forward-reverse motor is fixed to the top of the vehicle plate, a lower nut is symmetrically and threadedly sleeved on the outer side of the bidirectional screw rod, the lower nut is located below an upper nut, a connecting rod two is fixedly connected between the lower nut and the lifting plate two, and a connecting rod one is fixedly connected between the upper nut and the lifting plate one.

[0013] Compared with the prior art, the present application has the following beneficial effects: 1. The present application, by the cooperation between the electric push rod, the column, the U-shaped plate and the U-shaped round rod, facilitates the asphalt raw material to be pressed on the road gap by the descending compression roller, and through the cooperation between the motor, the screw rod, the screw sleeve, the limiting groove, the positioning groove, the positioning rod, the positioning plate, the mounting ring, the conical hollow blade and the semicircular collecting cylinder, the asphalt raw material remaining on the surface of the compression roller can be scraped and collected, so that the surface of the compression roller can be cleaned to improve the compaction effect.

[0014] 2. The present application, by the cooperation between the positioning plate, the positioning rod, the positioning groove, the sliding rod, the sliding block, the spring, the insertion rod and the insertion ring, facilitates the disassembly and assembly of the conical hollow blade.

[0015] 3. The present application, by the cooperation between the forward and reverse motor, the bidirectional screw rod, the lower screw nut, the upper screw nut, the connecting rod two, the lifting plate two, the bracket, the connecting rod one, the lifting plate one and the U-shaped round rod two, facilitates the lifting of the spray head and the dust cover, so that the direction of one end of the spray head and the dust cover is opposite, and through the cooperation between the air suction pipe, the air suction machine, the processing box, the corrugated hose two and the hard pipe, the impurities in the road gap can be extracted, and through the cooperation between the heating barrel and the material extraction pipe, the booster pump and the corrugated hose one, the heated and uniformly mixed asphalt raw material can be filled into the road gap, so that the road can be quickly repaired. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation of the present application.

[0017] In the drawings: Figure 1 The present application is a construction device structure schematic diagram for traffic road maintenance pretreatment. Figure 2 The present application is a compaction mechanism structure schematic diagram. Figure 3 The present application is a positioning plate and L-shaped plate connection structure schematic diagram. Figure 4 The present application is a fixing mechanism structure schematic diagram. Figure 5 The present application is a filling mechanism structure schematic diagram. Figure 6 The present application is a U-shaped round rod two structure schematic diagram.

[0018] In the diagram: 1. Car body; 2. Compaction mechanism; 201. U-shaped round rod one; 202. Positioning plate; 203. Screw; 204. Limiting groove; 205. Pressure roller; 206. Screw sleeve; 207. Adjusting motor; 208. Abutment ring; 209. Column; 2010. Electric push rod; 2011. L-shaped seat one; 2012. U-shaped plate; 2013. L-shaped plate; 2014. Positioning groove; 2015. Positioning rod; 2016. Semi-circular collecting cylinder; 2017. Conical hollow blade; 2018. Mounting ring; 3. Fixing mechanism; 301. Sliding rod; 302. Insert ring; 303. Insert rod; 304. Handle; 305. Spring; 306. Sliding block 4. Filling mechanism; 401. Heating tank; 402. Material extraction pipe; 403. Booster pump; 404. Corrugated hose I; 405. Nozzle; 406. U-shaped rod II; 407. Dust hood; 408. Rigid pipe; 409. Corrugated hose II; 4010. Processing box; 4011. Exhaust fan; 4012. Exhaust pipe; 4013. Lifting plate I; 4014. Lifting plate II; 4015. Connecting rod I; 4016. Lower nut; 4017. L-shaped seat II; 4018. Upper nut; 4019. Bidirectional screw; 4020. Forward and reverse motor; 4021. Connecting rod II; 4022. Bracket; 5. Roller; 6. Support leg; 7. Handrail. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] Example 1, by Figures 1-6 The present invention relates to a construction device for pretreatment of traffic road maintenance, comprising a platform 1, a handrail 7 fixedly connected to the top of the platform 1, and support legs 6 fixedly connected to the bottom of the platform 1 near the four corners. Each support leg 6 is provided with a roller 5 at its bottom end. The platform 1 is provided with a compaction mechanism 2 and a filling mechanism 4, and the compaction mechanism 2 is provided with a fixing mechanism 3.

[0021] The second embodiment is based on the first embodiment, the compaction mechanism 2 comprises a U-shaped round rod one 201 fixed to the bottom of the vehicle plate 1, the outer side of the U-shaped round rod one 201 is movably sleeved with a U-shaped plate 2012, the inner side of the U-shaped plate 2012 is fixedly installed with an adjusting motor 207, the adjusting motor 207 is fixedly connected with a screw rod 203, the end of the screw rod 203 away from the adjusting motor 207 is rotatably connected with the U-shaped plate 2012, the outer side of the screw rod 203 is threadedly sleeved with a screw sleeve 206, the screw sleeve 206 is located below the U-shaped round rod one 201, the bottom of the U-shaped plate 2012 is provided with a limiting groove 204, the screw sleeve 206 is slidably connected with the limiting groove 204, the outer side of the screw sleeve 206 is rotatably connected with a compression roller 205 located below the U-shaped plate 2012, the outer side of the U-shaped round rod one 201 is fixedly sleeved with an L-shaped plate 2013, the outer side of the L-shaped plate 2013 is provided with a positioning groove 2014, the inner side of the positioning groove 2014 is fixedly connected with a positioning rod 2015, the outer side of the positioning rod 2015 is sleeved with a positioning plate 202, the positioning plate 202 is inserted into the positioning groove 2014, the bottom of the positioning plate 202 is fixedly connected with a mounting ring 2018, the outer side of the mounting ring 2018 is fixedly installed with a semicircular collecting cylinder 2016, one side of the mounting ring 2018 close to the compression roller 205 is fixedly connected with a conical hollow blade 2017, the conical hollow blade 2017 is located at the same height as the compression roller 205, and the semicircular collecting cylinder 2016 is located below the conical hollow blade 2017, the outer side of the U-shaped round rod one 201 is fixedly sleeved with an abutting ring 208, the U-shaped plate 2012 abuts against the bottom of the abutting ring 208, the top of the vehicle plate 1 is fixedly installed with an L-shaped seat one 2011, the inner top wall of the L-shaped seat one 2011 is fixedly installed with an electric push rod 2010, the output end of the electric push rod 2010 is fixedly connected with a stand 209, the bottom end of the stand 209 is fixed to the top of the U-shaped plate 2012, a through hole one is formed in the vehicle plate 1, the stand 209 penetrates through the through hole one, and the inner diameter value of the through hole one is greater than the outer diameter value of the stand 209; Firstly, the electric push rod 2010 is started, the U-shaped plate 2012 is driven by the stand 209 to slide downward along the U-shaped round rod one 201, and the compression roller 205 is lowered to compact the asphalt raw material at the road gap, when the U-shaped plate 2012 slides upward along the U-shaped round rod one 201, the compression roller 205 is driven to rise until the U-shaped plate 2012 abuts against the abutting ring 208, at this time, the compression roller 205 is located at the same height as the conical hollow blade 2017, then the adjusting motor 207 is started, the screw rod 203 is driven to rotate, the screw sleeve 206 is driven to slide along the limiting groove 204, and the compression roller 205 is driven to move horizontally, when the compression roller 205 penetrates through the conical hollow blade 2017, the asphalt raw material remaining on the surface of the compression roller 205 is scraped off by the conical hollow blade 2017, the scraped asphalt raw material falls into the semicircular collecting cylinder 2016 for collection, and finally the surface of the compression roller 205 is cleaned to improve the compaction effect.

[0022] In the embodiment three, on the basis of the embodiment one, the fixing mechanism 3 comprises a sliding rod 301 fixed in the inner side of the positioning groove 2014, a sliding block 306 movably sleeved on the outer side of the sliding rod 301, a handle 304 fixedly connected to the outer side of the sliding block 306, a spring 305 fixedly connected between the top of the sliding block 306 and the inner top wall of the positioning groove 2014, the spring 305 being sleeved on the outer side of the sliding rod 301, two insertion rods 303 fixedly connected to the bottom of the sliding block 306 in a symmetrical manner, and two insertion rings 302 fixedly connected to the top of the positioning plate 202 in a symmetrical manner, the two insertion rods 303 being inserted into the two insertion rings 302, respectively. First, hold the handle 304 to slide the sliding block 306 upwards along the sliding rod 301, at this time the spring 305 is compressed, and the two insertion rods 303 are lifted, then the positioning plate 202 is sleeved on the outer side of the positioning rod 2015 and inserted into the positioning groove 2014, then the handle 304 is released, at this time the spring 305 resets to drive the sliding block 306 to slide downwards along the sliding rod 301, and the two insertion rods 303 are lowered until they are inserted into the two insertion rings 302, respectively, to fix the positioning plate 202 and the L-shaped plate 2013, complete the installation of the mounting ring 2018, and the tapered hollow blade 2017 and the semicircular collecting cylinder 2016 can be used to scrape and collect the asphalt raw materials remaining on the surface of the compression roller 205, when the two insertion rods 303 are removed from the two insertion rings 302, respectively, the fixing of the positioning plate 202 and the L-shaped plate 2013 is released, the mounting ring 2018 is disassembled, the asphalt raw materials in the semicircular collecting cylinder 2016 can be processed, and the tapered hollow blade 2017 can be cleaned.

[0023] The embodiment four is based on the embodiment one, the filling mechanism 4 comprises a heating barrel 401 fixed on the top of the vehicle plate 1, the inside of the heating barrel 401 is provided with a heating element and a stirring unit, the uniform heating of the asphalt raw materials in the inside of the heating barrel 401 is realized, the top of the vehicle plate 1 is fixedly installed with a booster pump 403, the booster pump 403 is fixedly connected with the bottom end of the heating barrel 401 through a material suction pipe 402, the booster pump 403 is fixedly connected with a corrugated hose one 404, the end of the corrugated hose one 404 away from the booster pump 403 extends to the below of the vehicle plate 1 and is fixedly connected with a spray head 405, the top of the vehicle plate 1 is fixedly installed with a treatment box 4010, the top of the treatment box 4010 is fixedly installed with an air suction fan 4011, the air suction fan 4011 is fixedly connected with the treatment box 4010 through an air suction pipe 4012, the outside of the treatment box 4010 is fixedly connected with a corrugated hose two 409, the bottom end of the corrugated hose two 409 extends to the below of the vehicle plate 1 and is fixedly connected with a hard pipe 408, the vehicle plate 1 is provided with a through hole two and a through hole three, the corrugated hose one 404 and the corrugated hose two 409 respectively pass through the through hole two and the through hole three, the inner diameter value of the through hole two is greater than the outer diameter value of the corrugated hose one 404, the inner diameter value of the through hole three is greater than the outer diameter value of the corrugated hose two 409, the bottom end of the hard pipe 408 is fixedly connected with a dust suction cover 407, the spray head 405 is located between the dust suction cover 407 and the compression roller 205, the bottom of the vehicle plate 1 is fixedly connected with a U-shaped round rod two 406, the U-shaped round rod two 406 is located between the spray head 405 and the dust suction cover 407, the outside of the U-shaped round rod two 406 is sequentially movably sleeved with a lifting plate two 4014 and a lifting plate one 4013 from top to bottom, the outside of the lifting plate two 4014 is fixedly connected with a support 4022, the support 4022 is fixedly sleeved on the outside of the spray head 405, the lifting plate one 4013 is fixedly sleeved on the outside of the hard pipe 408, the top of the vehicle plate 1 is fixedly installed with an L-shaped seat two 4017, the inner top wall of the L-shaped seat two 4017 is rotatably connected with a bidirectional screw rod 4019, the bottom end of the bidirectional screw rod 4019 is fixedly connected with a forward and reverse motor 4020, the forward and reverse motor 4020 is fixed on the top of the vehicle plate 1, the outside of the bidirectional screw rod 4019 is symmetrically threadedly sleeved with a lower nut 4016 and an upper nut 4018, the lower nut 4016 is located below the upper nut 4018, the lower nut 4016 is fixedly connected with the lifting plate two 4014 through a connecting rod two 4021, the upper nut 4018 is fixedly connected with the lifting plate one 4013 through a connecting rod one 4015, the inside of the treatment box 4010 is provided with a filter screen, which is convenient for filtering the air entering into the treatment box 4010 from the corrugated hose two 409, a box door is hinged on the treatment box 4010, the box door can be opened to disassemble and clean the filter screen; First, make the positive and negative rotation motor 4020 positive rotation, drive the bidirectional screw rod 4019 rotation, through the upper nut 4018 and connecting rod one 4015 drive lifting plate one 4013 along the U-shaped round rod two 406 downward sliding, at the same time through the lower nut 4016 and connecting rod two 4021 drive lifting plate two 4014 along the U-shaped round rod two 406 upward sliding, and through the bracket 4022 drive the nozzle 405 rise, at the same time dust cover 407 down to the road gap, and then start the air extractor 4011, the impurities in the road gap are extracted, so that the impurities through the hard pipe 408 and corrugated hose two 409 into the processing box 4010 for filtering treatment, realize the cleaning of the inside of the road gap, when the positive and negative rotation motor 4020 is reversed, drive the dust cover 407 to rise and remove it from the road gap, at the same time the nozzle 405 down, then move the whole device, make the nozzle 405 down to the road gap, start the booster pump 403, through the suction pipe 402 to extract the heated and mixed evenly asphalt raw materials in the heating barrel 401, make it through the corrugated hose one 404 and from the nozzle 405 to fill in the road gap, finally repair the road quickly.

Claims

1. A construction device for pretreatment of traffic road maintenance, comprising a vehicle platform (1), characterized in that: The top of the vehicle platform (1) is fixedly connected to a handrail (7), and the bottom of the vehicle platform (1) is fixedly connected to four corners with support legs (6). Each support leg (6) has a roller (5) at its bottom end. The vehicle platform (1) is provided with a compaction mechanism (2) and a filling mechanism (4). The compaction mechanism (2) is provided with a fixing mechanism (3). The compaction mechanism (2) includes a U-shaped round rod (201) fixed to the bottom of the vehicle plate (1). A U-shaped plate (2012) is movably sleeved on the outer side of the U-shaped round rod (201). An adjusting motor (207) is fixedly installed on the inner side of the U-shaped plate (2012). A screw (203) is fixedly connected to the adjusting motor (207). The end of the screw (203) away from the adjusting motor (207) is rotatably connected to the U-shaped plate (2012). A screw sleeve (206) is threaded on the outer side of the screw (203). The screw sleeve (206) is located below the U-shaped round rod (201). A limiting groove (204) is provided at the bottom of the U-shaped plate (2012). The screw sleeve (206) is slidably connected to the limiting groove (204). A pressure roller (205) located below the U-shaped plate (2012) is rotatably connected to the outer side of the screw sleeve (206). An L-shaped plate (2013) is fixedly sleeved on the outer side of the round rod (201). A positioning groove (2014) is provided on the outer side of the L-shaped plate (2013). A positioning rod (2015) is fixedly connected to the inner side of the positioning groove (2014). A positioning plate (202) is sleeved on the outer side of the positioning rod (2015). The positioning plate (202) is inserted into the positioning groove (2014). An installation ring (2018) is fixedly connected to the bottom of the positioning plate (202). A semi-circular collecting cylinder (2016) is fixedly installed on the outer side of the installation ring (2018). A conical hollow blade (2017) is fixedly connected to the side of the installation ring (2018) near the pressure roller (205). The conical hollow blade (2017) is at the same height as the pressure roller (205), and the semi-circular collecting cylinder (2016) is located below the conical hollow blade (2017).

2. The construction device for pretreatment of traffic road maintenance according to claim 1, characterized in that: An abutment ring (208) is fixedly sleeved on the outer side of the U-shaped round rod (201), and the U-shaped plate (2012) abuts against the bottom of the abutment ring (208).

3. The construction device for pretreatment of traffic road maintenance according to claim 1, characterized in that: An L-shaped seat (2011) is fixedly installed on the top of the vehicle plate (1). An electric push rod (2010) is fixedly installed on the inner top wall of the L-shaped seat (2011). A column (209) is fixedly connected to the output end of the electric push rod (2010). The bottom end of the column (209) is fixed to the top of the U-shaped plate (2012).

4. The construction device for pretreatment of traffic road maintenance according to claim 1, characterized in that: The fixing mechanism (3) includes a slide rod (301) fixed inside the positioning groove (2014), a slider (306) movably sleeved on the outside of the slide rod (301), a handle (304) fixedly connected to the outside of the slider (306), a spring (305) fixedly connected between the top of the slider (306) and the inner top wall of the positioning groove (2014), the spring (305) sleeved on the outside of the slide rod (301), and two insert rods (303) symmetrically fixedly connected to the bottom of the slider (306).

5. The construction device for pretreatment of traffic road maintenance according to claim 1, characterized in that: The top of the positioning plate (202) is symmetrically fixedly connected with two insert rings (302), and two insert rods (303) are respectively inserted into the two insert rings (302).

6. The construction device for pretreatment of traffic road maintenance according to claim 1, characterized in that: The filling mechanism (4) includes a heating tank (401) fixed to the top of the vehicle platform (1), a booster pump (403) fixedly installed on the top of the vehicle platform (1), a material extraction pipe (402) fixedly connected between the booster pump (403) and the bottom end of the heating tank (401), a corrugated hose (404) fixedly connected to the booster pump (403), and the end of the corrugated hose (404) away from the booster pump (403) extends to the bottom of the vehicle platform (1) and is fixedly connected to a nozzle (405).

7. A construction device for pretreatment of traffic road maintenance according to claim 1, characterized in that: A processing box (4010) is fixedly installed on the top of the vehicle board (1). A blower (4011) is fixedly installed on the top of the processing box (4010). A blower pipe (4012) is fixedly connected between the blower (4011) and the processing box (4010). A corrugated hose II (409) is fixedly connected to the outside of the processing box (4010). The bottom end of the corrugated hose II (409) extends to the bottom of the vehicle board (1) and is fixedly connected to a rigid pipe (408). A dust hood (407) is fixedly connected to the bottom end of the rigid pipe (408). A nozzle (405) is located between the dust hood (407) and the pressure roller (205).

8. The construction device for pretreatment of traffic road maintenance according to claim 1, characterized in that: The bottom of the vehicle plate (1) is fixedly connected to a U-shaped rod two (406). The U-shaped rod two (406) is located between the nozzle (405) and the dust hood (407). The outer side of the U-shaped rod two (406) is movably sleeved with a lifting plate two (4014) and a lifting plate one (4013) from top to bottom. The outer side of the lifting plate two (4014) is fixedly connected to a bracket (4022). The bracket (4022) is fixedly sleeved on the outer side of the nozzle (405). The lifting plate one (4013) is fixedly sleeved on the outer side of the rigid pipe (408).

9. A construction device for pretreatment of traffic road maintenance according to claim 1, characterized in that: The top of the vehicle plate (1) is fixedly installed with an L-shaped seat 2 (4017). A two-way screw rod (4019) is rotatably connected to the inner top wall of the L-shaped seat 2 (4017). A forward and reverse motor (4020) is fixedly connected to the bottom end of the two-way screw rod (4019). The forward and reverse motor (4020) is fixed to the top of the vehicle plate (1). A lower screw nut (4016) and an upper screw nut (4018) are symmetrically threaded on the outer side of the two-way screw rod (4019). The lower screw nut (4016) is located below the upper screw nut (4018). A connecting rod 2 (4021) is fixedly connected between the lower screw nut (4016) and the lifting plate 2 (4014). A connecting rod 1 (4015) is fixedly connected between the upper screw nut (4018) and the lifting plate 1 (4013).

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