Road maintenance agent spraying equipment

Abstract

The utility model provides road maintenance agent spraying equipment, which relates to the technical field of road maintenance devices and comprises a frame, a base, a connecting plate, a spraying component and a stirring component. According to the road maintenance agent spraying equipment, the extension pipe is pulled to slide along the inner wall of the main pipe, the spraying assembly can be adjusted to the proper length according to the width of a road surface to be sprayed with a maintenance agent, and the long diffusion nozzle is pulled to enable the sliding pipe to slide in the extension pipe; therefore, the distance between the long diffusion nozzles on the extension pipe can be flexibly adjusted, the width of the curing agent sprayed by the whole spraying assembly can be finely adjusted, the edges of the sprayed curing agent can be ensured to be overlapped by adjusting the distance between the long diffusion nozzles, and it is ensured that no missed coating area exists on the road surface. The water suction pump core is started to pump the curing agent in the material containing barrel into the main pipe, the flow speed of the curing agent liquid pumped out through the water suction pump core is high, and the curing agent liquid fills the inner cavity of the main pipe and the inner cavity of the extension pipe and is sprayed out from the diffusion nozzle.

Description

Technical Field

[0001] The utility model relates to the technical field of road maintenance devices, in particular to a road maintenance agent spraying device. Background Technique

[0002] A road maintenance agent spraying device is a professional device for road maintenance and repair, mainly used for spraying various types of maintenance agents (such as emulsified asphalt, liquid additives, etc.) to improve the service performance of the road and extend its service life.

[0003] When spraying a maintenance agent on a road surface, the road maintenance agent spraying device can adjust its length according to the width of the road surface, ensuring that the sprayed maintenance agent can fully cover the entire road surface, avoiding insufficient or excessive spraying, and ensuring the maintenance effect. Content of the Utility Model

[0004] The utility model provides a road maintenance agent spraying device, achieving the effect that the sprayed maintenance agent can fully cover the entire road surface and avoiding insufficient or excessive spraying as proposed in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A road maintenance agent spraying device includes a vehicle frame, a base, a connecting plate, a spraying assembly, and a stirring assembly. One end of the vehicle frame is fixedly connected to the base. Wheels are rotatably connected to the lower end of the base. Vertical grooves are formed at both ends of the upper surface of the base. A connecting plate is arranged at the upper end of the base. Sliding bars are fixedly connected to the lower end of the connecting plate. The connecting plate is slidably connected to the vertical grooves through the sliding bars. A spraying assembly is arranged at the upper end of the connecting plate;

[0006] The injection assembly includes a main pipe, an extension pipe and a sliding pipe. The main pipe is arranged at the upper end of the connecting plate. Both ends of the main pipe are open. Extension pipes are slidably connected to the inside of both ends of the main pipe. A plurality of short diffusion nozzles are linearly arranged on the side surface of the main pipe along the length direction of the main pipe. A plurality of adjustment grooves are formed in the circumferential side surface of the extension pipe, and the adjustment grooves are linearly arranged uniformly along the length direction of the extension pipe. A plurality of the sliding pipes are slidably connected to the inside of the extension pipe. A set of the sliding pipes is correspondingly arranged at the position where each adjustment groove is located. A long diffusion nozzle is threadedly connected to the circumferential side surface of the sliding pipe. The long diffusion nozzle extends out from the adjustment groove and is slidably connected with the adjustment groove. A fixing nut is threadedly connected to the circumferential side of the long diffusion nozzle. The stirring assembly is arranged on one side of the main pipe. One end of the stirring assembly is provided with a connecting pipe one. One end of the connecting pipe one is provided with a water pump core, and the connecting pipe one is connected to the water inlet end of the water pump core. The water outlet end of the water pump core is provided with a connecting pipe two. The stirring assembly is communicated with the main pipe through the connecting pipe one and the connecting pipe two.

[0007] Preferably, a sloping strip is fixedly connected to the upper surface of the connecting plate, and the main pipe is fixed on the sloping strip.

[0008] Preferably, the sloping strip is inclined downward toward the side of the main pipe where the short diffusion nozzles are arranged.

[0009] Preferably, long slots are formed at both ends of the upper surface of the main pipe. A threaded fixing head is fixedly connected to the circumferential side surface of the extension pipe. The threaded fixing head extends out from the upper end of the long slot and is slidably connected with the long slot.

[0010] Preferably, limiting rings are fixedly connected to the positions at both ends of the adjustment groove on the inner side of the extension pipe. End pipes are fixedly connected to both ends of the sliding pipe. A sealing ring is fixedly connected to the circumferential side of the free end of the end pipe. The sealing ring abuts against the inner side wall of the extension pipe. The outer diameter of the end pipe is the same as the inner diameter of the limiting ring.

[0011] Preferably, a support frame is fixedly connected to the upper end of the vehicle frame, and a push handle is fixedly connected to the other end of the vehicle frame. The stirring assembly includes a material placing cylinder and a motor. The material placing cylinder is fixed to the upper end of the support frame. The motor is arranged at one end of the material placing cylinder. The output shaft of the motor extends into the inside of the material placing cylinder. A spiral stirring roller is fixedly connected to the output shaft of the motor. A feed port is arranged on the circumferential side surface of the material placing cylinder. A discharge pipe opening is arranged at the lower end of the end surface of the other end of the material placing cylinder. A feed pipe opening is arranged on the opposite side of the main pipe where the short diffusion nozzles are arranged. The connecting pipe one is connected to the discharge pipe opening, and the connecting pipe two is connected to the feed pipe opening.

[0012] Preferably, the placement height of the material placing cylinder is higher than that of the main pipe.

[0013] Preferably, a side groove is formed through the side surface of the base, the side groove is communicated with the vertical groove, a notch is formed through the side surface of the sliding bar, the opening position of the notch corresponds to the opening position of the side groove, a bolt rod is arranged inside the notch, and both ends of the bolt rod protrude out of the side groove.

[0014] Preferably, a spring is arranged at the inner bottom end of the vertical groove, and the spring is fixedly connected to the sliding bar.

[0015] Preferably, one end of the extension pipe is in a closed state, a clamping plate is threadedly connected to the closed end of the extension pipe, a transverse groove is formed on the upper surface of the clamping plate, a rotating wheel is arranged at the lower end of the clamping plate, a rotating shaft is rotatably connected to the central position inside the rotating wheel, the rotating shaft protrudes out of the transverse groove and is slidably connected to the transverse groove, and a limiting nut is threadedly connected to the upper end of the rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. Add the selected water-soluble curing agent into the material placing cylinder from the feed port, start the motor to drive the spiral stirring roller to rotate to stir the curing agent evenly, pull the extension pipe to slide along the inner wall of the main pipe, and at the same time, the threaded fixing head on the circumferential side surface of the extension pipe will slide along the long strip groove. The length of the spraying assembly can be adjusted to an appropriate length according to the width of the road surface to be sprayed with the curing agent. After the length adjustment of the spraying assembly is completed, tighten the nut on the threaded fixing head to fix the extension pipe. The main pipe is fixed on the inclined surface of the inclined plate strip, so that the nozzle of the short diffusion nozzle inclines downward.

[0018] 2. Pull the long diffusion nozzle to make the sliding pipe slide inside the extension pipe, and the long diffusion nozzle slides along the adjustment groove, so as to play a role in flexibly adjusting the distance between the long diffusion nozzles on the extension pipe, and can also finely adjust the width of the curing agent sprayed by the entire spraying assembly. After the adjustment is completed, tighten the fixing nut outside the long diffusion nozzle to fix the long diffusion nozzle, and at the same time, fix the sliding pipe at the corresponding position inside the extension pipe. By adjusting the distance between the long diffusion nozzles, it can be ensured that the edges of the sprayed curing agent overlap, ensuring that there is no uncoated area on the road surface. Start the water pump core to pump the curing agent in the material placing cylinder into the main pipe. The flow rate of the curing agent liquid pumped out by the water pump core is relatively fast, and the curing agent liquid fills the inner cavities of the main pipe and the extension pipe and is sprayed out from the short diffusion nozzle and the long diffusion nozzle. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the road curing agent spraying equipment of the present utility model;

[0020] Figure 2 is Figure 1 an enlarged view of portion A;

[0021] Figure 3 is a schematic structural view of the installation position of the support frame of the present utility model;

[0022] Figure 4 is a schematic structural view of the main pipe and the inclined slats of the present utility model in cooperation;

[0023] Figure 5 is a cross-sectional view of the position where the main pipe and the extension pipe of the present utility model are in cooperation;

[0024] Figure 6 is Figure 5 an enlarged view of portion B;

[0025] Figure 7 is an internal cross-sectional view of the material placing cylinder of the present utility model;

[0026] Figure 8 is a schematic structural view of the preferred embodiment of the clamping plate and the runner of the present utility model in cooperation.

[0027] Reference numerals in the figures: 1, vehicle frame; 11, support frame; 12, push handle; 2, base; 21, vertical groove; 22, side groove; 23, spring; 24, bolt rod; 25, wheel; 3, connecting plate; 31, sliding strip; 311, notch; 32, inclined slat; 4, main pipe; 41, short diffusion nozzle; 42, long strip groove; 43, feed pipe orifice; 5, extension pipe; 51, threaded fixing head; 52, adjustment groove; 53, limiting ring; 6, sliding pipe; 61, long diffusion nozzle; 62, fixing nut; 63, end pipe; 631, sealing ring; 7, clamping plate; 71, horizontal groove; 8, runner; 81, rotating shaft; 82, limiting nut; 9, stirring assembly; 91, material placing cylinder; 911, feed port; 912, discharge pipe orifice; 92, motor; 921, spiral stirring roller; 10, connecting pipe one; 101, water pump core; 102, connecting pipe two. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0029] The present utility model provides a road maintenance agent spraying device, as shown in Figure 1 and Figure 3As shown in the figure, it includes a frame 1, a base 2, a connecting plate 3, a spraying assembly, and a stirring assembly 9. One end of the frame 1 is fixedly connected to the base 2. The lower end of the base 2 is rotatably connected to a wheel 25. Vertical grooves 21 are provided at both ends of the upper surface of the base 2. A connecting plate 3 is provided at the upper end of the base 2. The lower end of the connecting plate 3 is fixedly connected with a sliding strip 31. The connecting plate 3 is slidably connected to the vertical groove 21 through the sliding strip 31. A side groove 22 is penetrated through the side surface of the base 2. The side groove 22 communicates with the vertical groove 21. A notch 311 is penetrated through the side surface of the sliding strip 31. The opening position of the notch 311 corresponds to the opening position of the side groove 22. A bolt rod 24 is provided inside the notch 311, and both ends of the bolt rod 24 protrude out of the side groove 22. A spring 23 is provided at the inner bottom end of the vertical groove 21. The spring 23 is fixedly connected to the sliding strip 31. Press the connecting plate 3 to make it slide vertically along the vertical groove 21 to adjust the distance between the spraying assembly and the road surface. After the adjustment is completed, tighten the nut on the bolt rod 24 to fix the connecting plate 3.

[0030] As Figure 1 and Figure 2 shown in the figure, a spraying assembly is provided at the upper end of the connecting plate 3. The spraying assembly includes a main pipe 4, an extension pipe 5, and a sliding pipe 6. The main pipe 4 is provided at the upper end of the connecting plate 3. An inclined plate strip 32 is fixedly connected to the upper surface of the connecting plate 3. The main pipe 4 is fixed on the inclined plate strip 32. Both ends of the main pipe 4 are open. Extension pipes 5 are slidably connected to the inner parts of both ends of the main pipe 4. Long strip grooves 42 are provided at both ends of the upper surface of the main pipe 4. Threaded fixing heads 51 are fixedly connected to the circumferential side surface of the extension pipe 5. The threaded fixing heads 51 protrude out of the upper ends of the long strip grooves 42 and are slidably connected to the long strip grooves 42. A plurality of short diffusion nozzles 41 are linearly arranged on the side surface of the main pipe 4 along the length direction of the main pipe 4. The short diffusion nozzles 41 are densely arranged on the main pipe 4 to ensure that the edges of the curing agent water mist ejected from the short diffusion nozzles 41 overlap. As Figure 4 shown in the figure, the inclined plate strip 32 is inclined downward towards the side where the short diffusion nozzles 41 are provided on the main pipe 4. Pull the extension pipe 5 to make it slide along the inner wall of the main pipe 4. At the same time, the threaded fixing heads 51 on the circumferential side surface of the extension pipe 5 will slide along the long strip grooves 42. The length of the spraying assembly can be adjusted to a suitable length according to the width of the road surface to be sprayed with the curing agent. After the length adjustment of the spraying assembly is completed, tighten the nut on the threaded fixing head 51 to fix the extension pipe 5. The main pipe 4 is fixed on the inclined surface of the inclined plate strip 32, so that the nozzles of the short diffusion nozzles 41 are inclined downward, and the curing agent diffuses and sprays out to the road surface from the short diffusion nozzles 41. The diffusion nozzles can increase the width of the curing agent ejected.

[0031] As Figure 2 and Figure 5As shown in the figure, a plurality of adjustment slots 52 are formed on the circumferential side surface of the extension pipe 5, and the adjustment slots 52 are linearly arranged uniformly along the length direction of the extension pipe 5. A plurality of sliding pipes 6 are slidably connected inside the extension pipe 5. A set of sliding pipes 6 is correspondingly arranged at the position where each adjustment slot 52 is located. As Figure 6 shown in the figure, limiting rings 53 are fixedly connected to both ends of the adjustment slot 52 on the inner side of the extension pipe 5. End pipes 63 are fixedly connected to both ends of the sliding pipe 6. A sealing ring 631 is fixedly connected to the circumferential side of the free end of the end pipe 63. The sealing ring 631 abuts against the inner side wall of the extension pipe 5. The outer diameter of the end pipe 63 is the same as the inner diameter of the limiting ring 53. A long diffusion nozzle 61 is threadedly connected to the circumferential side surface of the sliding pipe 6. The long diffusion nozzle 61 protrudes from the adjustment slot 52 and the long diffusion nozzle 61 is slidably connected with the adjustment slot 52. A fixing nut 62 is threadedly connected to the circumferential side of the long diffusion nozzle 61. Pull the long diffusion nozzle 61 to make the sliding pipe 6 slide inside the extension pipe 5, and the long diffusion nozzle 61 slides along the adjustment slot 52, so as to play a role in flexibly adjusting the distance between the long diffusion nozzles 61 on the extension pipe 5. It can also finely adjust the width of the curing agent sprayed by the entire spraying assembly. After the adjustment is completed, tighten the fixing nut 62 outside the long diffusion nozzle 61 to fix the long diffusion nozzle 61, and at the same time fix the sliding pipe 6 at the corresponding position inside the extension pipe 5. By adjusting the distance between the long diffusion nozzles 61, it can be ensured that the edges of the sprayed curing agent overlap, and ensure that there is no uncoated area on the road surface.

[0032] Because the distance of the extension pipe 5 entering the main pipe 4 is adjusted, a part of the adjustment slot 52 enters the main pipe 4. The long diffusion nozzle 61 corresponding to this part of the adjustment slot 52 can be unscrewed. When the width of the spraying assembly needs to be adjusted to be the same as the width of the road surface, but no matter how the distance between the long diffusion nozzles 61 on the extension pipe 5 is adjusted, the edges of the curing agent water mist sprayed by the long diffusion nozzles 61 cannot all overlap, resulting in the situation that the road surface spraying cannot be fully covered. The extension pipe 5 can be pulled outwards to expose the adjustment slot 52 originally located inside the main pipe 4 outside. Screw the long diffusion nozzle 61 onto the sliding pipe 6 corresponding to the position of the adjustment slot 52. By increasing the number of long diffusion nozzles 61 exposed outside the extension pipe 5 and adjusting the distance positions of these long diffusion nozzles 61, the full coverage of the curing agent spraying can be realized. The sealing ring 631 abutting against the inner side wall of the extension pipe 5 can prevent the curing agent from flowing out from the connection between the sliding pipe 6 and the extension pipe 5. At the same time, when the sliding pipe 6 moves, the limiting ring 53 restricts the sealing ring 631, which can prevent the open end of the sliding pipe 6 from sliding out to the position of the adjustment slot 52, resulting in the outflow of the curing agent.

[0033] As Figure 1 and Figure 7As shown in the figure, the stirring assembly 9 is arranged on one side of the main pipe 4. One end of the stirring assembly 9 is provided with a first connecting pipe 10. One end of the first connecting pipe 10 is provided with a water pump core 101, and the first connecting pipe 10 is connected to the water inlet end of the water pump core 101. The water outlet end of the water pump core 101 is provided with a second connecting pipe 102. The stirring assembly 9 is communicated with the main pipe 4 through the first connecting pipe 10 and the second connecting pipe 102. The upper end of the vehicle frame 1 is fixedly connected with a support frame 11, and the other end of the vehicle frame 1 is fixedly connected with a push handle 12. The stirring assembly 9 includes a material placing cylinder 91 and a motor 92. The material placing cylinder 91 is fixed at the upper end of the support frame 11. The motor 92 is arranged at one end of the material placing cylinder 91. The output shaft of the motor 92 extends into the interior of the material placing cylinder 91. A spiral stirring roller 921 is fixedly connected to the output shaft of the motor 92. A feed inlet 911 is arranged on the circumferential side surface of the material placing cylinder 91. A discharge pipe orifice 912 is arranged at the lower end of the end surface at the other end of the material placing cylinder 91. An inlet pipe orifice 43 is arranged on the opposite side of the main pipe 4 provided with a short diffusion nozzle 41. The first connecting pipe 10 is connected to the discharge pipe orifice 912, and the second connecting pipe 102 is connected to the inlet pipe orifice 43. The placement height of the material placing cylinder 91 is higher than that of the main pipe 4. Select the appropriate water-soluble curing agent and add it into the material placing cylinder 91 from the feed inlet 911. The water-soluble curing agent includes salt-based antifreeze agents and surface modifiers, etc. Among them, the salt-based antifreeze agent can effectively reduce the freezing point and is used for the antifreeze treatment of winter roads to reduce the damage of ice and snow to the roads. The surface modifier improves the performance of road materials through water-soluble polymers or other chemical additives and is used to improve the skid resistance and wear resistance of the road surface. Start the motor 92 to drive the spiral stirring roller 921 to rotate and stir the curing agent evenly. Start the water pump core 101 to extract the curing agent in the material placing cylinder 91 into the main pipe 4. The flow rate of the curing agent liquid extracted by the water pump core 101 is relatively fast. The curing agent liquid fills the inner cavities of the main pipe 4 and the extension pipe 5 and is sprayed out from the short diffusion nozzle 41 and the long diffusion nozzle 61.

[0034] As Figure 1 shown, one end of the extension pipe 5 is in a closed state. A clamping plate 7 is threadedly connected to the closed end of the extension pipe 5. A transverse groove 71 is formed on the upper surface of the clamping plate 7. A rotating wheel 8 is arranged at the lower end of the clamping plate 7. A rotating shaft 81 is rotatably connected to the central position inside the rotating wheel 8. The rotating shaft 81 extends out of the transverse groove 71 and is slidably connected to the transverse groove 71. A limit nut 82 is threadedly connected to the upper end of the rotating shaft 81. When spraying the curing agent on the road paved with curbstones, the clamping plate 7 can be threadedly connected to the closed end of the extension pipe 5. Press down the connecting plate 3 so that the inner side of the upper end of the clamping plate 7 contacts the top of the curbstones. The vertical plate of the clamping plate 7 fits on the outer side of the curbstones. Push the rotating shaft 81 to slide along the transverse groove 71 so that the rotating wheel 8 is attached to the inner side of the curbstones. When pushing the device forward with the push handle 12, the device can move along the extension direction of the road.

[0035] Preferably, as Figure 8As shown, a set of rotating wheels 8 are also rotatably connected inside the vertical plate of the clamping plate 7, making the device move more smoothly along the curbstone.

[0036] Using the present utility model, as Figure 1 and Figure 2 shown, select the water-soluble curing agent and add it into the material placing cylinder 91 from the feeding port 911. Start the motor 92 to drive the spiral stirring roller 921 to rotate and stir the curing agent evenly. Pull the extension pipe 5 to slide along the inner wall of the main pipe 4. At the same time, the threaded fixing head 51 on the circumferential side of the extension pipe 5 will slide along the long strip groove 42. The length of the spraying assembly can be adjusted to an appropriate length according to the width of the road surface to be sprayed with the curing agent. After the length adjustment of the spraying assembly is completed, tighten the nut on the threaded fixing head 51 to fix the extension pipe 5. The main pipe 4 is fixed on the inclined surface of the inclined plate strip 32, so that the nozzle of the short diffusion nozzle 41 is inclined downward. Pull the long diffusion nozzle 61 to make the sliding pipe 6 slide inside the extension pipe 5, and the long diffusion nozzle 61 slides along the position adjustment groove 52, so as to play a role in flexibly adjusting the distance between the long diffusion nozzles 61 on the extension pipe 5, and the width of the curing agent sprayed by the entire spraying assembly can also be finely adjusted. After the adjustment is completed, tighten the fixing nut 62 outside the long diffusion nozzle 61 to fix the long diffusion nozzle 61, and at the same time fix the sliding pipe 6 at the corresponding position inside the extension pipe 5. By adjusting the distance between the long diffusion nozzles 61, it can be ensured that the edges of the sprayed curing agent overlap, ensuring that there is no uncoated area on the road surface. Start the water pump core 101 to pump the curing agent in the material placing cylinder 91 into the main pipe 4. The flow rate of the curing agent liquid pumped out by the water pump core 101 is relatively fast. The curing agent liquid fills the inner cavities of the main pipe 4 and the extension pipe 5 and is sprayed out from the short diffusion nozzle 41 and the long diffusion nozzle 61. Push the entire device forward to carry out the spraying work of the curing agent on the road surface.

[0037] Although the embodiments of the present utility model have been disclosed above, it is not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present utility model. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present utility model is not limited to the specific details and the illustrated examples described here.

Claims

1. A road maintenance agent spraying device, characterized in that, It includes a vehicle frame (1), a base (2), a connecting plate (3), a spraying assembly and a stirring assembly (9). One end of the vehicle frame (1) is fixedly connected to the base (2). The lower end of the base (2) is rotatably connected to a wheel (25). Vertical grooves (21) are formed at both ends of the upper surface of the base (2). A connecting plate (3) is arranged at the upper end of the base (2). A sliding strip (31) is fixedly connected to the lower end of the connecting plate (3). The connecting plate (3) is slidably connected to the vertical groove (21) through the sliding strip (31). A spraying assembly is arranged at the upper end of the connecting plate (3). The spraying assembly includes a main pipe (4), an extension pipe (5) and a sliding pipe (6). The main pipe (4) is arranged at the upper end of the connecting plate (3). Both ends of the main pipe (4) are open. Extension pipes (5) are slidably connected to the inner parts of both ends of the main pipe (4). A plurality of short diffusion nozzles (41) are linearly arranged on the side surface of the main pipe (4) along the length direction of the main pipe (4). A plurality of adjustment grooves (52) are formed on the circumferential side surface of the extension pipe (5), and the adjustment grooves (52) are linearly arranged evenly along the length direction of the extension pipe (5). A plurality of sliding pipes (6) are slidably connected to the inside of the extension pipe (5). A set of the sliding pipes (6) is correspondingly arranged at the position where each adjustment groove (52) is located. A long diffusion nozzle (61) is threadedly connected to the circumferential side surface of the sliding pipe (6). The long diffusion nozzle (61) extends out from the adjustment groove (52) and is slidably connected to the adjustment groove (52). A fixing nut (62) is threadedly connected to the circumferential side of the long diffusion nozzle (61). The stirring assembly (9) is arranged on one side of the main pipe (4). A first connecting pipe (10) is arranged at one end of the stirring assembly (9). A water pump core (101) is arranged at one end of the first connecting pipe (10), and the first connecting pipe (10) is connected to the water inlet end of the water pump core (101). A second connecting pipe (102) is arranged at the water outlet end of the water pump core (101). The stirring assembly (9) is communicated with the main pipe (4) through the first connecting pipe (10) and the second connecting pipe (102).

2. The road maintenance agent spraying device according to claim 1, characterized in that, An inclined plate strip (32) is fixedly connected to the upper surface of the connecting plate (3). The main pipe (4) is fixed on the inclined plate strip (32).

3. The road maintenance agent spraying device according to claim 2, characterized in that, The inclined plate strip (32) is inclined downward towards the side of the main pipe (4) where the short diffusion nozzles (41) are arranged.

4. A road maintenance agent spraying device according to claim 1, characterized in that, Long strip grooves (42) are formed at both ends of the upper surface of the main pipe (4). A threaded fixing head (51) is fixedly connected to the circumferential side surface of the extension pipe (5). The threaded fixing head (51) extends out from the upper end of the long strip groove (42) and is slidably connected to the long strip groove (42).

5. The road maintenance agent spraying device according to claim 1, characterized in that, At both positions inside the extension tube (5) located at the two ends of the adjustment groove (52), there are fixed connection limit rings (53). At both ends of the sliding tube (6), there are fixed connection end tubes (63). On the circumferential side of the free end of the end tube (63), there is a fixed connection sealing ring (631). The sealing ring (631) abuts against the inner wall of the extension tube (5). The outer diameter of the end tube (63) is the same as the inner diameter of the limit ring (53).

6. The road maintenance agent spraying device according to claim 1, characterized in that, At the upper end of the vehicle frame (1), there is a fixed connection support frame (11). At the other end of the vehicle frame (1), there is a fixed connection push handle (12). The stirring assembly (9) includes a material placing cylinder (91) and a motor (92). The material placing cylinder (91) is fixed at the upper end of the support frame (11). The motor (92) is arranged at one end of the material placing cylinder (91). The output shaft of the motor (92) extends into the interior of the material placing cylinder (91). On the output shaft of the motor (92), there is a fixed connection spiral stirring roller (921). On the circumferential surface of the material placing cylinder (91), there is a feed inlet (911). At the lower end of the end face at the other end of the material placing cylinder (91), there is a discharge pipe opening (912). On the opposite side of the main pipe (4) where the short diffusion nozzle (41) is arranged, there is a feed pipe opening (43). The first connecting pipe (10) is connected to the discharge pipe opening (912). The second connecting pipe (102) is connected to the feed pipe opening (43).

7. The road maintenance agent spraying device according to claim 6, characterized in that, The placement height of the material placing cylinder (91) is higher than that of the main pipe (4).

8. The road maintenance agent spraying device according to claim 1, characterized in that, On the side of the base (2), there is a through side groove (22). The side groove (22) is communicated with the vertical groove (21). On the side of the sliding strip (31), there is a through notch (311). The opening position of the notch (311) corresponds to the opening position of the side groove (22). Inside the notch (311), there is a bolt rod (24), and both ends of the bolt rod (24) protrude out of the side groove (22).

9. The road maintenance agent spraying device according to claim 8, wherein At the inner bottom end of the vertical groove (21), there is a spring (23). The spring (23) is fixedly connected to the sliding strip (31).

10. A road maintenance agent spraying device according to claim 1, characterized in that, One end of the extension tube (5) is in a closed state. The closed end of the extension tube (5) is threadedly connected with a clamping plate (7). On the upper surface of the clamping plate (7), there is a transverse groove (71). At the lower end of the clamping plate (7), there is a rotating wheel (8). At the central position inside the rotating wheel (8), there is a rotatably connected rotating shaft (81). The rotating shaft (81) protrudes out of the transverse groove (71) and is slidably connected with the transverse groove (71). At the upper end of the rotating shaft (81), there is a threadedly connected limit nut (82).

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