Highway bridge maintenance spraying device

Abstract

The invention belongs to the technical field of pavement spraying maintenance, and particularly discloses a highway bridge maintenance spraying device which comprises a ground spraying mechanism, a guardrail spraying mechanism and a maintenance truck, a water storage tank is arranged on the maintenance truck, and the guardrail spraying mechanism is arranged on the maintenance truck; the ground spraying mechanism comprises an automatic adjusting water supply assembly, a water supply pump, a locking mechanism and a telescopic spraying pipe, the telescopic spraying pipe is arranged at the tail of the maintenance truck, the automatic adjusting water supply assembly is arranged on the telescopic spraying pipe, and the locking mechanism is arranged on the automatic adjusting water supply assembly. The automatic adjusting water supply assembly is creatively provided, and sliding of the sliding shifting piece is automatically controlled jointly through the adjusting elastic rope with the large elastic modulus and the adjusting spring with the small elastic modulus; through self-adaptive adjustment of the power of the water supply pump, the stability of the water spraying amount per unit width can be automatically kept under the condition that the coverage width of the telescopic spraying pipe is changed.

Description

Technical Field

[0001] The present invention belongs to the technical field of pavement spraying maintenance, and specifically refers to a highway bridge maintenance spraying device. Background Art

[0002] In the construction of highway bridges, after the concrete pouring construction of highway bridges is completed, in order to prevent the concrete from cracking, it is necessary to spray water on the poured concrete. At present, watering is carried out manually, which not only has a large workload, but also the spraying process is rather troublesome. It is impossible to comprehensively spray the bridge, which affects the work efficiency and is extremely likely to cause waste of water resources.

[0003] Therefore, engineering vehicles are currently mostly used for the maintenance spraying of asphalt pavements and concrete guardrails. However, due to the different numbers and widths of lanes, there are also differences in the required coverage widths of the pavement spraying mechanisms. Therefore, it is necessary to adjust the effective spraying length of the spraying pipes according to the actual working conditions. However, if the total water spraying volume is constant and the coverage width changes, the actual water spraying volume obtained by each part of the area will also change.

[0004] Although the concrete guardrails beside the road are standard and fixed, some sections exist and some sections do not. Therefore, it is also necessary to separately control the spraying of the guardrails according to the distribution of the guardrails. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a highway bridge maintenance spraying device. In order to maintain the relative stability of the spraying water volume per unit width of the road surface when the coverage width of the telescopic spraying pipe changes and avoid affecting the maintenance effect due to excessive changes in the spraying volume, the present invention creatively proposes an automatic adjustment water supply component, which jointly and automatically controls the sliding of the sliding flap through an adjustment elastic rope with a relatively large elastic modulus and an adjustment spring with a relatively small elastic modulus; through the adaptive adjustment of the power of the water supply pump, it can automatically maintain the stability of the water spraying volume per unit width when changing the coverage width of the telescopic spraying pipe.

[0006] Moreover, the present invention also proposes a guardrail spraying mechanism. The rotary folding bracket can be unfolded when passing through the section with concrete guardrails for the maintenance of the guardrails, and can be folded when passing through the section without concrete guardrails to avoid collisions with objects such as green belts and metal guardrails; and through the notch angle design of the rotating valve flap and the fixed valve flap, it can automatically realize the opening and closing control of the automatic valve component when the rotary folding bracket is folded and unfolded, so as to match the actual working conditions.

[0007] The technical solution adopted by the present invention is as follows: The present invention proposes a highway bridge maintenance spraying device, which includes a ground spraying mechanism, a guardrail spraying mechanism and a maintenance vehicle. A water storage tank is provided on the maintenance vehicle, and the guardrail spraying mechanism is provided on the maintenance vehicle; Furthermore, the ground sprinkling mechanism includes an automatic water supply adjustment component, a water supply pump, a locking mechanism, and a telescopic sprinkling pipe. The telescopic sprinkling pipe is arranged at the tail of the maintenance vehicle. The automatic water supply adjustment component is arranged on the telescopic sprinkling pipe, and the locking mechanism is arranged on the automatic water supply adjustment component; Among them, the water supply pump is arranged on the water storage tank, and the water supply pump and the telescopic sprinkling pipe are connected by a hose.

[0008] Through the ground sprinkling mechanism, not only can continuous sprinkling of the ground be realized, but also when dealing with working conditions with different numbers and widths of lanes, the width of the sprinkling coverage can be adjusted; and when adjusting the width, the water pumping power can be automatically adjusted, so that the water spraying amount per unit width remains stable.

[0009] Preferably, the automatic water supply adjustment component includes an adjustment table, a spring installation ring, and an elastic cord installation ring. A sliding regulator is arranged on the adjustment table, and a sliding dial for controlling the power of the water supply pump is arranged on the sliding regulator. The spring installation ring and the elastic cord installation ring are arranged on the telescopic sprinkling pipe. The spring installation ring and the elastic cord installation ring are respectively located at both ends of the sliding dial. An adjustment spring is arranged between the spring installation ring and the sliding dial, and an adjustment elastic cord is arranged between the elastic cord installation ring and the sliding dial.

[0010] The elastic modulus of the adjustment elastic cord is much smaller than that of the adjustment spring. Therefore, when the inner sprinkling pipe undergoes a large-scale telescopic movement, the deformation amount of the adjustment elastic cord is much larger than that of the adjustment spring. Therefore, the stroke of the sliding dial can be designed to be shorter. Through the elastic linkage of the adjustment spring and the adjustment elastic cord to the sliding dial, when the inner sprinkling pipe expands and contracts, the position of the sliding dial will also change automatically accordingly, so as to realize the adjustment of the power of the water supply pump and maintain the stability of the water spraying amount per unit width.

[0011] As a further preference of the present invention, the locking mechanism includes a sliding compression sleeve and a reset locking spring. Lifting guide columns are symmetrically arranged on both sides of the adjustment table. A friction positioning piece for restricting the sliding dial is arranged at the top of the sliding compression sleeve. Lifting sliding grooves are symmetrically arranged on both sides of the sliding compression sleeve. The lifting guide columns are clamped and slidably arranged in the lifting sliding grooves. The reset locking spring is arranged between the bottom of the lifting sliding groove and the lifting guide column.

[0012] By lifting the sliding compression sleeve, the telescopic locking and unlocking of the telescopic sprinkling pipe, as well as the locking and unlocking of the sliding dial, can be controlled simultaneously; furthermore, when it is necessary to adjust the telescopic amplitude of the telescopic sprinkling pipe, the sliding dial is automatically changed to a free state, and after the length adjustment of the telescopic sprinkling pipe is completed, the position of the sliding dial is automatically locked to prevent the sliding dial from shaking during the construction process.

[0013] Preferably, the telescopic spray pipe comprises an outer spray pipe and an inner spray pipe, the inner spray pipe is slidably arranged in the outer spray pipe, the spring mounting ring is fixedly connected to the outer spray pipe, the elastic rope mounting ring is fixedly connected to the inner spray pipe, and the bottom array of the outer spray pipe and the inner spray pipe is provided with water outlet gaps for spraying.

[0014] As a further preferred embodiment of the present invention, the telescopic spray pipe also includes a spray pipe bracket, the spray pipe bracket is fixedly connected to the rear of the maintenance vehicle, the outer spray pipe is fixedly connected to the spray pipe bracket, a locking fork is also provided on the side of the sliding sleeve, and a locking slot is arrayed on the inner spray pipe, and the locking fork is engaged and slidably arranged in the locking slot.

[0015] By sliding up the sliding pressing sleeve, on the one hand, the friction positioning piece and the sliding paddle can be separated to unlock the sliding paddle; on the other hand, the locking fork can be separated from the locking slot to unlock the inner spray pipe.

[0016] Furthermore, the guardrail spray mechanism includes a folding spray assembly and an automatic valve assembly, the automatic valve assembly is arranged on one side of the rear of the maintenance vehicle, and the folding spray assembly is rotatably arranged on the automatic valve assembly.

[0017] The rotating folding bracket has a simple structure and occupies a small space. Through the cooperation of the rotating valve flap and the fixed valve flap, the switch control of the automatic valve assembly can be automatically realized when the rotating folding bracket is folded and unfolded, so that it matches the actual working conditions and reduces the steps of manual operation.

[0018] Preferably, the automatic valve assembly comprises a fixed valve seat and a fixed valve flap, the fixed valve seat is fixedly connected to the maintenance vehicle, the fixed valve flap is fixedly connected to the fixed valve seat, and the water storage tank and the fixed valve seat are connected by a hose.

[0019] As a further preferred embodiment of the present invention, the folding spray assembly includes a rotating folding bracket, a rotating valve seat is provided at the bottom of the rotating folding bracket, the rotating valve seat is rotatably arranged on a fixed valve seat, a rotating valve flap is provided on the rotating valve seat, when the rotating folding bracket is in a folded state, the notches on the fixed valve flap and the rotating valve flap do not overlap, and when the rotating folding bracket is in an unfolded state, the notches on the fixed valve flap and the rotating valve flap overlap.

[0020] Preferably, the folding spray assembly also includes a fixed support frame, a fork-type spray frame is provided at the end of the rotating folding support, a spray head is provided in the inner array of the fork-type spray frame, the spray head of the fork-type spray frame and the rotating valve seat are connected by a hose, the fixed support frame is fixedly connected to the maintenance vehicle, an electric push rod is provided on the fixed support frame, and the end of the telescopic rod of the electric push rod is hinged to the rotating folding support.

[0021] As a further preference of the present invention, a positioning boss is provided on the fixed support frame, a positioning groove is provided on the rotary folding bracket, and the positioning boss is located in the positioning groove.

[0022] The beneficial effects achieved by the present invention with the above structure are as follows: (1) Through the adaptive adjustment of the power of the water supply pump, it is possible to automatically maintain the stability of the water spray volume per unit width while changing the coverage width of the telescopic spray pipe.

[0023] (2) Through the notch angle design of the rotating valve flap and the fixed valve flap, it is possible to automatically control the opening and closing of the automatic valve assembly when the rotary folding bracket is folded and unfolded, so that it matches the actual working conditions.

[0024] (3) Through the ground spray mechanism, not only can continuous spraying of the ground be realized, but also when dealing with working conditions with different numbers and widths of lanes, the spraying coverage width can be adjusted; and when adjusting the width, the pump water power can also be automatically adjusted to keep the water spray volume per unit width stable.

[0025] (4) The elastic modulus of the adjusting elastic cord is much smaller than that of the adjusting spring. Therefore, when the inner spray pipe undergoes a large-scale telescopic movement, the deformation amount of the adjusting elastic cord is much larger than that of the adjusting spring. Therefore, the stroke of the sliding dial can be designed to be shorter. Through the elastic linkage of the adjusting spring and the adjusting elastic cord on the sliding dial, when the inner spray pipe is telescoped, the position of the sliding dial will also change automatically accordingly, so as to realize the power adjustment of the water supply pump and maintain the stability of the water spray volume per unit width.

[0026] (5) Through the lifting of the sliding sleeve, it is possible to simultaneously control the locking and unlocking of the telescopic lock of the telescopic spray pipe and the locking and unlocking of the sliding dial; furthermore, when it is necessary to adjust the telescopic amplitude of the telescopic spray pipe, the sliding dial is automatically changed to a free state, and after the length adjustment of the telescopic spray pipe is completed, the position of the sliding dial is automatically locked to prevent the sliding dial from shaking during the construction process.

[0027] (6) Through the sliding upward of the sliding sleeve, on the one hand, it can separate the friction positioning piece from the sliding dial to unlock the sliding dial; on the other hand, it can also separate the adjusting table from the locking card slot to unlock the inner spray pipe.

[0028] (7) The structure of the rotary folding bracket is simple and occupies less space. Through the cooperation of the rotating valve flap and the fixed valve flap, it is possible to automatically control the opening and closing of the automatic valve assembly when the rotary folding bracket is folded and unfolded, so that it matches the actual working conditions and reduces the steps of manual operation. Description of the Drawings

[0029] Figure 1Stereogram of a highway bridge maintenance spraying device proposed by the present invention; Figure 2 Front view of a highway bridge maintenance spraying device proposed by the present invention; Figure 3 Left view of a highway bridge maintenance spraying device proposed by the present invention; Figure 4 Top view of a highway bridge maintenance spraying device proposed by the present invention; Figure 5 is Figure 3 Cross-sectional view along the cutting line A-A in; Figure 6 is Figure 5 Cross-sectional view along the cutting line B-B in; Figure 7 Exploded structure diagram of a highway bridge maintenance spraying device proposed by the present invention; Figure 8 is Figure 5 Partial enlarged view at position I in; Figure 9 is Figure 6 Partial enlarged view at position II in; Figure 10 is Figure 7 Partial enlarged view at position III in.

[0030] Among them, 1. Ground spraying mechanism, 2. Guardrail spraying mechanism, 3. Maintenance vehicle, 4. Automatic water supply adjustment component, 5. Water supply pump, 6. Locking mechanism, 7. Telescopic spraying pipe, 8. Locking fork, 9. Adjusting platform, 10. Sliding regulator, 11. Spring installation ring, 12. Elastic cord installation ring, 13. Sliding compression sleeve, 14. Reset locking spring, 15. Spraying pipe support, 16. Outer spraying pipe, 17. Inner spraying pipe, 18. Lifting guide post, 19. Sliding dial, 20. Adjusting spring, 21. Adjusting elastic cord, 22. Friction positioning piece, 23. Lifting chute, 24. Locking card slot, 25. Folding spraying component, 26. Automatic valve component, 27. Rotary folding bracket, 28. Fixed support frame, 29. Electric push rod, 30. Fixed valve seat, 31. Fixed valve flap, 32. Rotating valve flap, 33. Fork-shaped spraying frame, 34. Positioning groove, 35. Rotating valve seat, 36. Positioning boss, 37. Water storage tank.

[0031] The accompanying drawings are used to provide further understanding of the present invention, and constitute a part of the description. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0034] As Figures 1 to 10 shown, the present invention provides a highway bridge maintenance spraying device, which includes a ground spraying mechanism 1, a guardrail spraying mechanism 2 and a maintenance vehicle 3. A water storage tank 37 is provided on the maintenance vehicle 3, and the guardrail spraying mechanism 2 is provided on the maintenance vehicle 3; The ground spraying mechanism 1 includes an automatic adjustment water supply component 4, a water supply pump 5, a locking mechanism 6 and a telescopic spraying pipe 7. The telescopic spraying pipe 7 is arranged at the tail of the maintenance vehicle 3, the automatic adjustment water supply component 4 is arranged on the telescopic spraying pipe 7, and the locking mechanism 6 is arranged on the automatic adjustment water supply component 4; The water supply pump 5 is arranged on the water storage tank 37, and the water supply pump 5 and the telescopic spraying pipe 7 are connected by a hose.

[0035] Through the ground spraying mechanism 1, not only can continuous spraying of the ground be realized, but also when dealing with working conditions with different numbers and widths of lanes, the width of the spraying coverage can be adjusted; and when adjusting the width, the pumping power can be automatically adjusted to keep the water spraying amount per unit width stable.

[0036] The automatic adjustment water supply component 4 includes an adjustment table 9, a spring installation ring 11 and an elastic cord installation ring 12. A sliding regulator 10 is arranged on the adjustment table 9, and a sliding dial 19 for controlling the power of the water supply pump 5 is arranged on the sliding regulator 10. The spring installation ring 11 and the elastic cord installation ring 12 are arranged on the telescopic spraying pipe 7, and the spring installation ring 11 and the elastic cord installation ring 12 are respectively located at both ends of the sliding dial 19. An adjustment spring 20 is arranged between the spring installation ring 11 and the sliding dial 19, and an adjustment elastic cord 21 is arranged between the elastic cord installation ring 12 and the sliding dial 19.

[0037] The elastic modulus of the adjusting elastic cord 21 is much smaller than that of the adjusting spring 20. Therefore, when the inner spray pipe 17 undergoes a relatively large telescopic movement, the deformation amount of the adjusting elastic cord 21 is much larger than that of the adjusting spring 20. Thus, the stroke of the sliding flap 19 can be designed to be shorter. Through the elastic linkage of the adjusting spring 20 and the adjusting elastic cord 21 to the sliding flap 19, when the inner spray pipe 17 expands and contracts, the position of the sliding flap 19 will also change automatically accordingly, thereby realizing the power adjustment of the water supply pump 5 and maintaining the stability of the water spray amount per unit width.

[0038] The locking mechanism 6 includes a sliding compression sleeve 13 and a reset locking spring 14. Lifting guide posts 18 are symmetrically arranged on both sides of the adjusting table 9. A friction positioning piece 22 for restricting the sliding flap 19 is provided at the top of the sliding compression sleeve 13. Lifting sliding grooves 23 are symmetrically arranged on both sides of the sliding compression sleeve 13. The lifting guide posts 18 are engaged and slidably arranged in the lifting sliding grooves 23. The reset locking spring 14 is arranged between the bottom of the lifting sliding groove 23 and the lifting guide post 18.

[0039] Through the lifting of the sliding compression sleeve 13, it is possible to simultaneously control the locking and unlocking of the telescopic spray pipe 7 and the locking and unlocking of the sliding flap 19. Furthermore, when it is necessary to adjust the telescopic amplitude of the telescopic spray pipe 7, the sliding flap 19 is automatically changed to a free state. After the length adjustment of the telescopic spray pipe 7 is completed, the position of the sliding flap 19 is automatically locked to prevent the sliding flap 19 from shaking during the construction process.

[0040] The telescopic spray pipe 7 includes an outer spray pipe 16 and an inner spray pipe 17. The inner spray pipe 17 is engaged and slidably arranged in the outer spray pipe 16. A spring mounting ring 11 is fixedly connected to the outer spray pipe 16, and an elastic cord mounting ring 12 is fixedly connected to the inner spray pipe 17. Water outlet slits for spraying are arrayed at the bottoms of the outer spray pipe 16 and the inner spray pipe 17.

[0041] The telescopic spray pipe 7 further includes a spray pipe support 15. The spray pipe support 15 is fixedly connected to the tail of the maintenance vehicle 3. The outer spray pipe 16 is fixedly connected in the spray pipe support 15. A locking fork 8 is further provided on the side surface of the sliding compression sleeve 13. Locking slots 24 are arrayed on the inner spray pipe 17. The locking fork 8 is engaged and slidably arranged in the locking slots 24.

[0042] Through the sliding upward of the sliding compression sleeve 13, on the one hand, it can separate the friction positioning piece 22 from the sliding flap 19 to unlock the sliding flap 19; on the other hand, it can also separate the locking fork 8 from the locking slot 24 to unlock the inner spray pipe 17.

[0043] The guardrail spraying mechanism 2 includes a folding spraying assembly 25 and an automatic valve assembly 26. The automatic valve assembly 26 is arranged on one side of the tail of the maintenance vehicle 3. The folding spraying assembly 25 is rotatably arranged on the automatic valve assembly 26.

[0044] The structure of the rotary folding bracket 27 is simple and occupies less space. Through the cooperation of the rotating valve flap 32 and the fixed valve flap 31, when the rotary folding bracket 27 is folded and unfolded, the on-off control of the automatic valve assembly 26 can be automatically realized, making it match the actual working conditions and reducing the steps of manual operation.

[0045] The automatic valve assembly 26 includes a fixed valve seat 30 and a fixed valve flap 31. The fixed valve seat 30 is fixedly connected to the maintenance vehicle 3, the fixed valve flap 31 is fixedly connected to the fixed valve seat 30, and the water storage tank 37 and the fixed valve seat 30 are connected by a hose.

[0046] The folding spray assembly 25 includes a rotary folding bracket 27. A rotating valve seat 35 is provided at the bottom of the rotary folding bracket 27. The rotating valve seat 35 is rotatably arranged on the fixed valve seat 30. A rotating valve flap 32 is provided on the rotating valve seat 35. When the rotary folding bracket 27 is in the folded state, the notches on the fixed valve flap 31 and the rotating valve flap 32 do not coincide. When the rotary folding bracket 27 is in the unfolded state, the notches on the fixed valve flap 31 and the rotating valve flap 32 coincide.

[0047] The folding spray assembly 25 further includes a fixed support frame 28. A fork-shaped spray frame 33 is provided at the end of the rotary folding bracket 27. Nozzles are arranged in an array on the inner side of the fork-shaped spray frame 33. The nozzles of the fork-shaped spray frame 33 and the rotating valve seat 35 are connected by a hose. The fixed support frame 28 is fixedly connected to the maintenance vehicle 3. An electric push rod 29 is provided on the fixed support frame 28. The end of the telescopic rod of the electric push rod 29 is hinged to the rotary folding bracket 27.

[0048] A positioning boss 36 is provided on the fixed support frame 28, and a positioning groove 34 is provided on the rotary folding bracket 27. The positioning boss 36 is located in the positioning groove 34.

[0049] During specific use, Example 1: The maintenance vehicle 3 travels along the position close to the guardrail on the right side of the road. The water in the water storage tank 37 enters the outer spray pipe 16 and the inner spray pipe 17 through the water supply pump 5 and the hose; according to the number and width of the lanes on the current road surface, the extension amplitude of the inner spray pipe 17 is adjusted. The inner spray pipe 17 can adopt two-stage telescoping or multi-stage telescoping so that it can cover a larger spray width; During adjustment, first push the sliding compression sleeve 13 upward. At this time, the locking fork 8 slides out of the locking card slot 24, and the friction positioning piece 22 leaves the sliding dial 19. Then extend the inner spray pipe 17 to an appropriate amplitude, and then release the sliding compression sleeve 13. After the sliding compression sleeve 13 is released, it resets under the elastic force of the reset locking spring 14 and fixes the position of the sliding dial 19 again.

[0050] During the process of adjusting the extension amplitude of the inner spray pipe 17 mentioned above, the total distance between the spring mounting ring 11 and the elastic cord mounting ring 12 will become longer, and the adjusting spring 20 and the adjusting elastic cord 21 will be stretched. However, since the elastic modulus of the adjusting elastic cord 21 is much smaller than that of the adjusting spring 20, when the inner spray pipe 17 undergoes a large amplitude of expansion and contraction, the deformation amount of the adjusting elastic cord 21 is much larger than that of the adjusting spring 20. Therefore, the displacement amplitude of the sliding dial 19 is not large either. When the sliding dial 19 is displaced, it will change the power of the water supply pump 5, thereby realizing the control of the total water spray amount of the telescopic spray pipe 7; The larger the extension amplitude of the inner spray pipe 17, the larger the coverage width of the telescopic spray pipe 7, and at this time, the power of the water supply pump 5 is greater; the smaller the extension amplitude of the inner spray pipe 17, the smaller the coverage width of the telescopic spray pipe 7, and at this time, the power of the water supply pump 5 is smaller; through the adaptive adjustment of the power of the water supply pump 5, it is possible to automatically maintain the stability of the water spray amount per unit width while changing the coverage width of the telescopic spray pipe 7.

[0051] The spring in the present invention can be made of stainless steel or undergo surface chromium plating or zinc plating treatment. A dust-proof cover can be provided between the sliding regulator 10 and the sliding dial 19, and the sliding regulator 10 also uses a stainless steel shell or is sprayed with rust-proof paint to improve its dust-proof ability and rust resistance.

[0052] Embodiment 2: When the rotary folding bracket 27 is in the folded state, the notches on the fixed valve flap 31 and the rotating valve flap 32 do not coincide, and at this time, the automatic valve assembly 26 is closed; when the rotary folding bracket 27 is in the unfolded state, the notches on the fixed valve flap 31 and the rotating valve flap 32 coincide, and at this time, the automatic valve assembly 26 is opened. When the maintenance vehicle 3 travels to a position with a guardrail, the rotary folding bracket 27 is rotated and unfolded by the retraction of the electric push rod 29; At this time, the notches of the rotating valve flap 32 and the fixed valve flap 31 coincide, and the water in the water storage tank 37 enters the fixed valve seat 30 through the pump and the hose, and then is sprayed out through the rotating valve seat 35 and the hose and then through the nozzles on the fork-shaped spray rack 33; During the traveling process, the fork-shaped spray rack 33 is located on both sides of the concrete guardrail. After passing the concrete guardrail, the rotary folding bracket 27 can be folded and retracted by the electric push rod 29. After the rotary folding bracket 27 is folded, the automatic valve assembly 26 is also closed accordingly.

[0053] As another new embodiment of the present invention, the sliding compression sleeve 13 can also be driven to lift in an electric manner, and the inner spray pipe 17 can also be controlled to expand and contract in an electric manner.

[0054] As another new embodiment of the present invention, since the height range of the concrete guardrail is fixed, the spraying amount of the fork-type spraying frame 33 does not need to be adjusted, and the water in the water storage tank 37 can be supplied to the fork-type spraying frame 33 by its own weight or driven by a pump.

[0055] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0056] The present invention and its embodiments have been described above. Such description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A highway bridge maintenance spraying device, including a maintenance vehicle (3), and a water storage tank (37) is provided on the maintenance vehicle (3), characterized in that: It also includes a ground spraying mechanism (1) and a guardrail spraying mechanism (2), and the guardrail spraying mechanism (2) is arranged on a maintenance vehicle (3); The ground spraying mechanism (1) includes an automatic adjustment water supply component (4), a water supply pump (5), a locking mechanism (6) and a telescopic spraying pipe (7). The telescopic spraying pipe (7) is arranged at the tail of the maintenance vehicle (3), the automatic adjustment water supply component (4) is arranged on the telescopic spraying pipe (7), and the locking mechanism (6) is arranged on the automatic adjustment water supply component (4); The water supply pump (5) is arranged on a water storage tank (37), and the water supply pump (5) and the telescopic spraying pipe (7) are connected by a hose.

2. The highway bridge maintenance spraying device according to claim 1, wherein: The automatic adjustment water supply component (4) includes an adjustment table (9), a spring mounting ring (11) and an elastic cord mounting ring (12). A sliding regulator (10) is arranged on the adjustment table (9), and a sliding dial (19) for controlling the power of the water supply pump (5) is arranged on the sliding regulator (10). The spring mounting ring (11) and the elastic cord mounting ring (12) are arranged on the telescopic spraying pipe (7), and the spring mounting ring (11) and the elastic cord mounting ring (12) are respectively located at both ends of the sliding dial (19). An adjustment spring (20) is arranged between the spring mounting ring (11) and the sliding dial (19), and an adjustment elastic cord (21) is arranged between the elastic cord mounting ring (12) and the sliding dial (19).

3. The highway bridge maintenance spraying device according to claim 2, wherein: The locking mechanism (6) includes a sliding compression sleeve (13) and a reset locking spring (14). Lifting guide columns (18) are symmetrically arranged on both sides of the adjustment table (9). A friction positioning piece (22) for restricting the sliding dial (19) is arranged at the top of the sliding compression sleeve (13). Lifting sliding grooves (23) are symmetrically arranged on both sides of the sliding compression sleeve (13), and the lifting guide columns (18) are snap-fitted and slidably arranged in the lifting sliding grooves (23). The reset locking spring (14) is arranged between the bottom of the lifting sliding groove (23) and the lifting guide column (18).

4. The highway bridge maintenance spraying device according to claim 3, characterized in that: The telescopic spraying pipe (7) includes an outer spraying pipe (16) and an inner spraying pipe (17). The inner spraying pipe (17) is snap-fitted and slidably arranged in the outer spraying pipe (16). The spring mounting ring (11) is fixedly connected to the outer spraying pipe (16), the elastic cord mounting ring (12) is fixedly connected to the inner spraying pipe (17), and water outlet slits for spraying are arranged in an array at the bottoms of the outer spraying pipe (16) and the inner spraying pipe (17).

5. The highway bridge maintenance spraying device according to claim 4, characterized in that: The telescopic spraying pipe (7) further includes a spraying pipe bracket (15). The spraying pipe bracket (15) is fixedly connected to the tail of the maintenance vehicle (3), the outer spraying pipe (16) is fixedly connected in the spraying pipe bracket (15). A locking fork (8) is further arranged on the side surface of the sliding compression sleeve (13). Locking card slots (24) are arranged in an array on the inner spraying pipe (17), and the locking fork (8) is snap-fitted and slidably arranged in the locking card slots (24).

6. The a highway bridge maintenance spraying device according to claim 1, wherein: The guardrail spraying mechanism (2) includes a folding spraying assembly (25) and an automatic valve assembly (26). The automatic valve assembly (26) is arranged on one side of the tail of the maintenance vehicle (3), and the folding spraying assembly (25) is rotatably arranged on the automatic valve assembly (26).

7. The highway bridge maintenance spraying device according to claim 6, characterized in that: The automatic valve assembly (26) includes a fixed valve seat (30) and a fixed valve flap (31). The fixed valve seat (30) is fixedly connected to the maintenance vehicle (3), and the fixed valve flap (31) is fixedly connected to the fixed valve seat (30).

8. The highway bridge maintenance spraying device according to claim 7, characterized in that: The folding spraying assembly (25) includes a rotary folding bracket (27). A rotating valve seat (35) is arranged at the bottom of the rotary folding bracket (27). The rotating valve seat (35) is rotatably arranged on the fixed valve seat (30). A rotating valve flap (32) is arranged on the rotating valve seat (35). When the rotary folding bracket (27) is in the folded state, the notches on the fixed valve flap (31) and the rotating valve flap (32) do not coincide. When the rotary folding bracket (27) is in the unfolded state, the notches on the fixed valve flap (31) and the rotating valve flap (32) coincide.

9. The highway bridge maintenance spraying device according to claim 8, wherein: The folding spraying assembly (25) further includes a fixed support frame (28). A fork-shaped spraying frame (33) is arranged at the end of the rotary folding bracket (27). The fixed support frame (28) is fixedly connected to the maintenance vehicle (3). An electric push rod (29) is arranged on the fixed support frame (28). The end of the telescopic rod of the electric push rod (29) is hinged to the rotary folding bracket (27).

10. A highway bridge maintenance spraying device according to claim 9, characterized in that: A positioning boss (36) is arranged on the fixed support frame (28), and a positioning groove (34) is arranged on the rotary folding bracket (27). The positioning boss (36) is located in the positioning groove (34).

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