Road maintenance pavement repairing device

Abstract

The road maintenance pavement repairing device comprises a material storage pipe, the front end of the material storage pipe is detachably connected with a material injection nozzle in a sealed mode, the rear end of the material storage pipe is detachably connected with a connecting sleeve in a sealed mode, and a gear motor is fixedly installed on the outer wall of the connecting sleeve; an output shaft of the speed reduction motor penetrates into the material storage pipe and then is fixedly connected with a square rod, a rotating shaft is arranged in the material storage pipe, spiral blades are fixedly arranged on the peripheral wall of the rotating shaft, and the end, facing the speed reduction motor, of the rotating shaft is arranged on the square rod in a sleeving mode through a square hole; according to the device, through cooperation of a second positioning block and different second positioning grooves, the orientation of a handle can be adjusted relative to a material storage pipe, and the device is matched with two scenes of material supply of a material storage hopper and material supply of a material pumping hose; the auxiliary grip is detachably connected with the ring body through the quick release mechanism, the orientation can be adjusted through the matching of the locking mechanism and different clamping grooves, the use habits of a left-hand user and a right-hand user can be met at the same time, and the operation comfort and stability are improved.

Description

Technical Field

[0001] This invention relates to the field of highway maintenance equipment technology, specifically a highway maintenance pavement repair device. Background Technology

[0002] During long-term use, highways are prone to cracking due to vehicle loads and environmental factors (such as temperature changes and precipitation erosion). If not repaired promptly, these cracks will gradually expand, leading to structural damage, reduced highway lifespan, and compromised driving safety. Currently, handheld crack sealing devices are commonly used for road crack repair, but they have several shortcomings in practical application:

[0003] 1. Poor operational adaptability: The main handle and auxiliary grip of the existing equipment are fixed in orientation and cannot be adjusted according to the user's usage habits (left-handed / right-handed) or adapt to the operational needs of different feeding methods, which leads to user fatigue during long-term operation and insufficient operational stability.

[0004] 2. Limited feeding methods: Most equipment only supports small-dose manual feeding or a single continuous feeding mode. Small-dose feeding requires frequent interruptions to replenish materials, and continuous feeding is prone to interference with operation due to the suction hose, resulting in poor adaptability.

[0005] 3. Insufficient sealing performance: Leakage is prone to occur at the connection between the storage pipe and the injection nozzle and connecting sleeve, which not only wastes materials, but also pollutes the equipment and road surface, affecting the repair effect;

[0006] 4. Poor rotational stability: The rotating shaft of the material pushing mechanism lacks effective support and is prone to shaking when rotating at high speed, resulting in uneven material output and affecting the tightness of the filling.

[0007] 5. Inconvenient disassembly and maintenance: The installation and disassembly of components such as handles and nozzles are complicated, making it inconvenient for equipment cleaning, component replacement and daily maintenance.

[0008] In view of the shortcomings of the prior art, the present invention proposes a road surface repair device for highway maintenance, which aims to solve the problems of poor operational adaptability, low material supply flexibility, unreliable sealing, unstable rotation and inconvenient disassembly and assembly of existing equipment. Summary of the Invention

[0009] The purpose of this invention is to provide a road surface repair device for highway maintenance, so as to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A road surface repair device for highway maintenance includes a storage pipe. A detachable, sealed nozzle is connected to the front end of the storage pipe, and a connecting sleeve is detachably, sealed to the rear end. A geared motor is fixedly mounted on the outer wall of the connecting sleeve. The output shaft of the geared motor passes through the storage pipe and is fixedly connected to a square rod. A rotating shaft is installed inside the storage pipe, and a helical blade is fixedly mounted on the outer circumferential wall of the rotating shaft. One end of the rotating shaft facing the geared motor is fitted onto the square rod through a square hole. The other end of the helical blade is fixedly connected to a round rod. A retainer adapted to the round rod is installed in the opening at the end of the storage pipe facing the nozzle. A cover is fixedly mounted on the outer wall of the connecting sleeve, and the geared motor is located inside the cover. A handle is fixedly mounted on the outer wall of the cover, and a speed control switch is installed on the handle. The geared motor is electrically connected to the speed control switch. A feed pipe is fixedly connected to the outer surface of the storage pipe near the rear end, and the feed pipe is used to connect to a storage hopper or a suction hose. A grip is adjustablely mounted on the outer wall of the storage pipe near the front end.

[0012] As a further embodiment of the present invention: a sleeve is fixedly sleeved to the rear end of the outer wall of the storage tube, a plurality of second positioning grooves are opened on the outer wall of the sleeve, an internal threaded sleeve is sleeved at the rear end of the outer wall of the storage tube, the sleeve is located inside the connecting sleeve, the internal threaded sleeve is fitted onto the outer wall of the connecting sleeve, and a second positioning block is fixedly provided at the corresponding position of the second positioning groove on the inner wall of the connecting sleeve, the second positioning block being adapted to the second positioning groove.

[0013] As a further aspect of the present invention: a second sealing gasket is provided inside the connecting sleeve, one side of the second sealing gasket abuts against the inner wall of the connecting sleeve, and the other side of the outer wall of the second sealing gasket abuts against the rear end face of the storage tube.

[0014] As a further aspect of the present invention: the injection nozzle is threaded onto the front end of the storage tube, and a first sealing gasket is provided inside the injection nozzle. One outer wall of the first sealing gasket abuts against the inner wall of the injection nozzle, and the other outer wall of the first sealing gasket abuts against the front end face of the storage tube.

[0015] As a further aspect of the present invention: the retainer includes a ring body located inside the front opening of the storage tube, a plurality of first positioning blocks are fixedly disposed on the outer peripheral wall of the ring body, and a collar is fixedly connected to the inner wall of the ring body by a plurality of connecting rods, the inner diameter of the collar being adapted to the outer diameter of the round rod, and a plurality of first positioning grooves are opened on the front end face of the storage tube, with the first positioning blocks located in the corresponding first positioning grooves.

[0016] As a further aspect of the present invention: the cross-section of the connecting rod is spindle-shaped, and the inner wall of the opening at the end of the ring facing the inside of the storage tube is conical.

[0017] As a further aspect of the present invention: a through hole adapted to the output shaft of the geared motor is provided at the center of the connecting sleeve, a sealing ring is embedded in the through hole, the output shaft of the square rod passes through the sealing ring, and the inner wall of the sealing ring is in contact with the outer wall of the output shaft of the geared motor.

[0018] As a further aspect of the present invention: a ring is fixedly sleeved on the outer wall of the storage tube near its front end, and multiple slots are distributed circumferentially on the outer wall of the ring. The handle is detachably connected to the ring via a quick-release mechanism, and a locking mechanism is provided on the handle, which is adapted to the slots.

[0019] As a further embodiment of the present invention: the quick-release mechanism includes a first semicircular sleeve and a second semicircular sleeve. The first semicircular sleeve is fixedly connected to the handle. One end of the first semicircular sleeve and the second semicircular sleeve are hinged to each other through a hinge seat. Two connecting plates are symmetrically fixedly installed on the outer wall of the other end of the first semicircular sleeve. A screw is rotatably installed between the two connecting plates through a pin shaft. A hand-tightening bolt is fitted onto the screw. Two baffles are symmetrically fixedly installed on the outer wall of the other end of the second semicircular sleeve.

[0020] As a further embodiment of the present invention: the locking mechanism includes a slider that is movably mounted on the end of the grip, a locking block is fixedly provided at the end of the slider facing outward from the grip, the locking block is adapted to the locking groove, a spring is provided inside the grip, and a lever is movably mounted on the outer wall of the grip through a sliding groove, the end of the lever located inside the grip being fixedly connected to the slider.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. In this invention, the orientation of the handle can be adjusted relative to the storage tube by the cooperation of the second positioning block with different second positioning slots, adapting to both hopper feeding and suction hose feeding scenarios; the auxiliary grip is detachably connected to the ring body through a quick-release mechanism, and its orientation can be adjusted by the cooperation of the locking mechanism with different slots, which can simultaneously meet the usage habits of left-handed and right-handed users, improving operating comfort and stability.

[0023] 2. The feeding method of this invention is flexible and adjustable. The feed pipe can be selectively connected to the storage hopper or the extraction hose. When repairing small cracks, the storage hopper is used to supply material, eliminating the need for frequent feeding. When continuously filling large cracks, the extraction hose is used to supply material, allowing for continuous extraction from a large-capacity material container, avoiding work interruptions and adapting to different repair needs.

[0024] 3. The present invention has reliable sealing performance. A first sealing gasket is provided between the storage pipe and the injection nozzle, a second sealing gasket is provided between the storage pipe and the connecting sleeve, and a sealing ring is provided at the output shaft of the reduction motor. The multiple sealing structure effectively prevents material leakage and avoids material waste and equipment and road pollution.

[0025] 4. In this invention, the front end of the rotating shaft is engaged with the collar of the retainer through a round rod, and the rear end is engaged with the square rod through a square hole. Both ends are effectively supported, ensuring that the rotating shaft and the spiral blade rotate smoothly, the material is discharged evenly, and the filling density is improved. The spindle-shaped connecting rod and the conical opening inner wall design of the retainer reduce the resistance of material passage, ensure smooth material discharge, and facilitate the removal and cleaning of the rotating shaft and the spiral blade after the work is completed.

[0026] 5. In this invention, the injection nozzle is threadedly connected to the storage pipe, which makes it easy to replace injection nozzles of different specifications to adapt to cracks of different widths; the handle can be quickly disassembled and assembled through a quick-release mechanism, and only the hand-tightening bolt needs to be turned to complete the fixing or disassembly; each seal, shaft, spiral blade and other components can be maintained or replaced by disassembling the connecting sleeve and retainer, reducing maintenance costs, and after the work is completed, it is easy to remove the retainer, shaft and other components for cleaning. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a road surface repair device for highway maintenance.

[0028] Figure 2 This is a cross-sectional view of a road surface repair device for highway maintenance.

[0029] Figure 3 This is a partial exploded view of a road surface repair device for highway maintenance.

[0030] Figure 4 This is a schematic diagram of the structure of a square hole in a road surface repair device for highway maintenance.

[0031] Figure 5 This is a schematic diagram of the ring structure in a road surface repair device for highway maintenance.

[0032] Figure 6 This is a schematic diagram of the quick-release mechanism in a road surface repair device for highway maintenance.

[0033] The components include: 1. Storage pipe; 2. Injection nozzle; 3. First sealing gasket; 4. Ring body; 5. First positioning block; 6. Connecting rod; 7. Collar; 8. Retainer; 9. First positioning groove; 10. Rotating shaft; 11. Spiral blade; 12. Connecting sleeve; 13. Sleeve; 14. Second positioning groove; 15. Second positioning block; 16. Second sealing gasket; 17. Internal threaded sleeve; 18. Gear motor; 19. Sealing ring; 20. Square rod; 21. Square hole; 22. Cover; 23. Vent hole; 24. Handle; 25. Speed ​​control switch; 26. Feed pipe; 27. Ring body; 28. Slot; 29. ​​First semi-circular sleeve; 30. Second semi-circular sleeve; 31. Hinge seat; 32. Connecting plate; 33. Screw; 34. Baffle; 35. Hand-tightening bolt; 36. Handle; 37. Slider; 38. Locking block; 39. Spring; 40. Toggle lever; 41. Slide groove; 42. Round rod. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-6 In this embodiment of the invention, a road surface repair device for highway maintenance includes a storage pipe 1. A material injection nozzle 2 is detachably and sealed to the front end of the storage pipe 1, and a connecting sleeve 12 is detachably and sealed to the rear end of the storage pipe 1. A reduction motor 18 is fixedly installed on the outer wall of the connecting sleeve 12. The output shaft of the reduction motor 18 passes through the storage pipe 1 and is fixedly connected to a square rod 20. A rotating shaft 10 is disposed inside the storage pipe 1. A spiral blade 11 is fixedly disposed on the outer peripheral wall of the rotating shaft 10. One end of the rotating shaft 10 facing the reduction motor 18 is sleeved on the square rod 20 through a square hole 21. The other end of the spiral blade 11 is fixedly connected to a round rod 42. The storage tube 1 has a retainer 8 adapted to the round rod 42 inside the opening at one end facing the injection nozzle 2. The outer wall of the connecting sleeve 12 is fixedly installed with a cover 22. The reduction motor 18 is located inside the cover 22. The cover 22 has several ventilation holes 23. The outer wall of the cover 22 is fixedly installed with a handle 24. A speed control switch 25 is installed on the handle 24. The reduction motor 18 is electrically connected to the speed control switch 25. The outer surface of the storage tube 1 is fixedly connected to the feed pipe 26 near the rear end. The feed pipe 26 is used to thread a connection to the storage hopper or the suction hose. The outer wall of the storage tube 1 is adjustablely installed with a handle 36 near the front end.

[0036] By adopting the above-mentioned solution, in use, the speed control switch 25 on the handle 24 is used to start the reduction motor 18, which drives the rotating shaft 10 to rotate by the cooperation of the square rod 20 and the square hole 21. This, in turn, uses the spiral blade 11 to drive the cold patching material in the storage pipe 1 to be discharged from the injection nozzle 2, thus facilitating grouting repair of road surface cracks. When repairing a small number of cracks, a storage hopper can be installed on the feed pipe 26, and an appropriate amount of cold patching material can be injected into the hopper. During the rotation of the spiral blade 11, the cold patching material in the storage hopper can be automatically drawn into the storage pipe 1. When repairing large areas... When repairing accumulated cracks, a suction hose can be installed on the feed pipe 26, and the feed end of the suction hose can be inserted into a container containing cold patch material. As the spiral blade 11 rotates, the cold patch material in the container is continuously drawn into the storage pipe 1, which facilitates continuous crack filling and repair work without the need for manual addition of cold patch material to the storage pipe 1. With the handle 36, the operator can hold the handle 24 with one hand and the handle 36 with the other hand to improve the stability of the equipment during operation. The position of the handle 36 on the storage pipe 1 is adjustable, making it more convenient for users to use.

[0037] Specific combination Figure 2 and Figure 4 In one embodiment of the present invention, a sleeve 13 is fixedly sleeved on the rear end of the outer wall of the storage tube 1. The outer wall of the sleeve 13 is provided with a plurality of second positioning grooves 14. An internal threaded sleeve 17 is sleeved at the rear end of the outer wall of the storage tube 1. The sleeve 13 is located inside the connecting sleeve 12. The internal threaded sleeve 17 is fitted onto the outer wall of the connecting sleeve 12. A second positioning block 15 is fixedly provided at the corresponding position of the second positioning groove 14 on the inner wall of the connecting sleeve 12. The second positioning block 15 is adapted to the second positioning groove 14.

[0038] By engaging the second positioning block 15 within the connecting sleeve 12 with the second positioning groove 14, and then tightening the internal threaded sleeve 17 on the connecting sleeve 12, the connecting sleeve 12 and handle 24 can be fixedly installed at the rear end of the storage pipe 1. The operation is simple and convenient. By engaging the second positioning block 15 with different second positioning grooves 14, the orientation of the handle 24 relative to the storage pipe 1 can be adjusted, as well as the relative position between the handle 24 and the feed pipe 26. When using the storage hopper for material supply, the handle 24 can be vertically downward on the storage pipe 1 while the feed pipe 26 is vertically upward, to ensure that the cold patch material in the storage hopper can flow smoothly into the storage pipe 1. When using the extraction hose for material supply, the handle 24 can be vertically downward on the storage pipe 1 while the feed pipe 26 is vertically downward or to the sides, so that the cold patch material can smoothly enter the storage pipe 1 from the extraction hose and reduce the interference of the extraction hose on the grouting operation.

[0039] Specific combination Figure 4Furthermore, based on the previous embodiment, a second sealing gasket 16 is provided inside the connecting sleeve 12. One side of the second sealing gasket 16 abuts against the inner wall of the connecting sleeve 12, and the other side of the outer wall of the second sealing gasket 16 abuts against the rear end face of the storage tube 1, so as to ensure the sealing of the connection between the connecting sleeve 12 and the storage tube 1.

[0040] Specific combination Figure 3 In one embodiment of the present invention, the injection nozzle 2 is threaded onto the front end of the storage tube 1, thereby facilitating the replacement of different types of injection nozzles 2. A first sealing gasket 3 is provided inside the injection nozzle 2. One side of the outer wall of the first sealing gasket 3 abuts against the inner wall of the injection nozzle 2, and the other side of the outer wall of the first sealing gasket 3 abuts against the front end face of the storage tube 1, so as to ensure the sealing of the connection between the injection nozzle 2 and the storage tube 1.

[0041] Specific combination Figure 3 In one embodiment of the present invention, the retainer 8 includes a ring 4 located inside the front opening of the storage tube 1. A plurality of first positioning blocks 5 are fixedly disposed on the outer peripheral wall of the ring 4. A collar 7 is fixedly connected to the inner wall of the ring 4 via a plurality of connecting rods 6. The inner diameter of the collar 7 is adapted to the outer diameter of the round rod 42. A plurality of first positioning grooves 9 are opened on the front end face of the storage tube 1, and the first positioning blocks 5 are located within the corresponding first positioning grooves 9. Through the cooperation between the collar 7 and the round rod 42, the stability of the front end of the rotating shaft 10 rotating within the storage tube 1 can be ensured. Through the cooperation between the first positioning grooves 9 and the first positioning holes 5, the retainer 8 can be positioned at the front end of the storage tube 1, thereby preventing the retainer 8 from rotating with the rotating shaft 10.

[0042] Specific combination Figure 2 In one embodiment of the present invention, the cross-section of the connecting rod 6 is spindle-shaped, and the inner wall of the opening at one end of the ring body 4 facing the inside of the storage tube 1 is conical, so as to reduce the resistance encountered by the cold replenishment material when passing through the retainer 8 and make the discharge smoother.

[0043] Specific combination Figure 2 In one embodiment of the present invention, a through hole adapted to the output shaft of the geared motor 18 is provided at the center of the connecting sleeve 12. A sealing ring 19 is embedded in the through hole. The output shaft of the square rod 20 passes through the sealing ring 19. The inner wall of the sealing ring 19 fits against the outer wall of the output shaft of the geared motor 18 to prevent cold patch material from leaking out through the through hole.

[0044] Specific combination Figure 2 , Figure 3 , Figure 5 and Figure 6In one embodiment of the present invention, a ring 27 is fixedly sleeved on the outer wall of the storage tube 1 near its front end. The outer wall of the ring 27 is provided with a plurality of slots 28 distributed in a circular pattern. The handle 36 is detachably connected to the ring 27 through a quick-release mechanism. The handle 36 is provided with a locking mechanism that is adapted to the slots 28. The quick-release structure facilitates the assembly and disassembly of the handle 36 on the ring 27. By cooperating the locking mechanism with different slots 28, the orientation of the handle 36 on the storage tube 1 can be easily adjusted, thereby facilitating use by different users.

[0045] Furthermore, the quick-release mechanism includes a first semicircular sleeve 29 and a second semicircular sleeve 30. The first semicircular sleeve 29 is fixedly connected to the handle 36. One end of the first semicircular sleeve 29 and the second semicircular sleeve 30 are hinged to each other through a hinge seat 31. Two connecting plates 32 are symmetrically fixedly installed on the outer wall of the other end of the first semicircular sleeve 29. A screw 33 is rotatably installed between the two connecting plates 32 through a pin. A hand-tightening bolt 35 is fitted onto the screw 33. Two baffles 34 are symmetrically fixedly installed on the outer wall of the other end of the second semicircular sleeve 30.

[0046] By rotating the hand-tightening bolt 35 on the screw 33 and pressing the end of the hand-tightening bolt 35 against the two baffles 34, the first semicircular sleeve 29 and the second semicircular sleeve 30 can be closed and locked together to form a circular sleeve that can rotate on the ring body 27. The operation is simple and the disassembly and assembly are convenient.

[0047] Specific combination Figure 6 Furthermore, the locking mechanism includes a slider 37 that is movably mounted on the end of the grip 36. A locking block 38 is fixedly provided at the end of the slider 37 facing outward from the grip 36. The locking block 38 is adapted to the locking groove 28. A spring 39 is provided inside the grip 36. A lever 40 is movably mounted on the outer wall of the grip 36 through a sliding groove 41. The end of the lever 40 located inside the grip 36 is fixedly connected to the slider 37.

[0048] By moving the slider 37 via the lever 40, the spring 39 can be compressed and the locking block 38 can be retracted into the handle 36. When the locking block 38 is aligned with the required slot 28, the lever 40 is released, and the locking block 38 will be inserted into the corresponding slot 28 under the action of the spring 39, so as to position the handle 36 on the outside of the ring 27, so that the handle 36 cannot rotate relative to the storage tube 1, ensuring the stability of the handle 36 during the use of the equipment, and at the same time, it is convenient for users to adjust the orientation of the handle 36 on the storage tube 1 according to their usage habits.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A road surface repair device for highway maintenance, characterized in that: The system includes a storage pipe (1), with a detachable sealing connection to the front end of the storage pipe (1) and a detachable sealing connection to the rear end of the storage pipe (1) and a connecting sleeve (12). A geared motor (18) is fixedly installed on the outer wall of the connecting sleeve (12). The output shaft of the geared motor (18) is inserted into the storage pipe (1) and then fixedly connected to a square rod (20). A rotating shaft (10) is provided inside the storage pipe (1). A spiral blade (11) is fixedly provided on the outer peripheral wall of the rotating shaft (10). One end of the rotating shaft (10) facing the geared motor (18) is sleeved on the square rod (20) through a square hole (21). The other end of the spiral blade (11) is fixedly connected to a round rod (42). The storage tube (1) has an opening at one end facing the injection nozzle (2) with a retainer (8) adapted to the round rod (42). The outer wall of the connecting sleeve (12) is fixedly fitted with a cover (22). The geared motor (18) is located inside the cover (22). The outer wall of the cover (22) is fixedly fitted with a handle (24). The handle (24) is fitted with a speed control switch (25). The geared motor (18) is electrically connected to the speed control switch (25). The outer surface of the storage tube (1) is fixedly connected to the feed pipe (26) near the rear end. The feed pipe (26) is used to connect to the storage hopper or the suction hose. The outer wall of the storage tube (1) is fixedly fitted with a handle (36) near the front end.

2. The road surface repair device for highway maintenance according to claim 1, characterized in that: The outer wall of the storage tube (1) is fixedly sleeved with a sleeve (13). The outer wall of the sleeve (13) is provided with a plurality of second positioning grooves (14). The outer wall of the storage tube (1) is sleeved with an internal thread sleeve (17). The sleeve (13) is located inside the connecting sleeve (12). The internal thread sleeve (17) is fitted onto the outer wall of the connecting sleeve (12). The inner wall of the connecting sleeve (12) and the corresponding positions of the second positioning grooves (14) are fixedly provided with second positioning blocks (15). The second positioning blocks (15) are adapted to the second positioning grooves (14).

3. The road surface repair device for highway maintenance according to claim 1, characterized in that: The connecting sleeve (12) is provided with a second sealing gasket (16). One side of the second sealing gasket (16) abuts against the inner wall of the connecting sleeve (12), and the other side of the outer wall of the second sealing gasket (16) abuts against the rear end face of the storage tube (1).

4. A road surface repair device for highway maintenance according to claim 1, characterized in that: The injection nozzle (2) is threaded onto the front end of the storage tube (1). A first sealing gasket (3) is provided inside the injection nozzle (2). One side of the outer wall of the first sealing gasket (3) abuts against the inner wall of the injection nozzle (2), and the other side of the outer wall of the first sealing gasket (3) abuts against the front end face of the storage tube (1).

5. A road surface repair device for highway maintenance according to claim 1, characterized in that: The retainer (8) includes a ring (4), which is located in the front opening of the storage tube (1). Multiple first positioning blocks (5) are fixedly provided on the outer peripheral wall of the ring (4). A collar (7) is fixedly connected to the inner wall of the ring (4) by multiple connecting rods (6). The inner diameter of the collar (7) is adapted to the outer diameter of the round rod (42). Multiple first positioning grooves (9) are opened on the front end face of the storage tube (1). The first positioning blocks (5) are located in the corresponding first positioning grooves (9).

6. A road surface repair device for highway maintenance according to claim 5, characterized in that: The cross-section of the connecting rod (6) is spindle-shaped, and the inner wall of the opening at one end of the ring (4) facing the storage tube (1) is conical.

7. A road surface repair device for highway maintenance according to claim 1, characterized in that: The connecting sleeve (12) has a through hole at its center that is compatible with the output shaft of the geared motor (18). A sealing ring (19) is embedded in the through hole. The output shaft of the square rod (20) passes through the sealing ring (19). The inner wall of the sealing ring (19) is in contact with the outer wall of the output shaft of the geared motor (18).

8. A road surface repair device for highway maintenance according to claim 1, characterized in that: The storage tube (1) has a ring (27) fixedly fitted on its outer wall near its front end. The outer wall of the ring (27) has multiple slots (28) distributed in a circular pattern. The handle (36) is detachably connected to the ring (27) through a quick-release mechanism. The handle (36) is provided with a locking mechanism that is compatible with the slots (28).

9. A road surface repair device for highway maintenance according to claim 8, characterized in that: The quick-release mechanism includes a first semicircular sleeve (29) and a second semicircular sleeve (30). The first semicircular sleeve (29) is fixedly connected to the handle (36). One end of the first semicircular sleeve (29) and the second semicircular sleeve (30) are hinged to each other through a hinge seat (31). Two connecting plates (32) are symmetrically fixedly installed on the outer wall of the other end of the first semicircular sleeve (29). A screw (33) is rotatably installed between the two connecting plates (32) through a pin shaft. A hand-tightening bolt (35) is fitted on the screw (33). Two baffles (34) are symmetrically fixedly installed on the outer wall of the other end of the second semicircular sleeve (30).

10. A road surface repair device for highway maintenance according to claim 8, characterized in that: The locking mechanism includes a slider (37) that is movably mounted on the end of the handle (36). A locking block (38) is fixedly provided on the end of the slider (37) facing outward from the handle (36). The locking block (38) is adapted to the locking groove (28). A spring (39) is provided inside the handle (36). A lever (40) is movably mounted on the outer wall of the handle (36) through a sliding groove (41). The end of the lever (40) located inside the handle (36) is fixedly connected to the slider (37).

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