Highway subgrade maintenance device
By designing a filler head conversion mechanism and a ball bearing rotating groove, the roadbed maintenance device solves the problem of low efficiency in adapting to damage of different sizes, achieving efficient and safe roadbed maintenance and extending the service life of highways.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHONGQIANG CONSTR ENG
- Filing Date
- 2025-09-03
- Publication Date
- 2026-05-19
AI Technical Summary
Existing roadbed maintenance equipment is difficult to adapt efficiently to damage of different sizes, resulting in low operating efficiency, material waste and increased costs. Furthermore, there are safety hazards associated with stopping the machine to replace the discharge head during periods of high traffic volume.
A roadbed maintenance device was designed, which adopts a filling head conversion mechanism, including large and small discharge heads. The design of ball bearings and rotating grooves enables rapid switching. Combined with the structure of pump body, conduit and transfer box, it can efficiently adapt to roadbed damage of different sizes. The use of micro motor and sealing design of movable pipe ensures the stability and accuracy of material delivery.
It enables rapid switching of the discharge head without stopping the machine, improving maintenance efficiency, reducing material waste, lowering operating costs, avoiding traffic congestion and safety hazards, and extending the service life of the road.
Smart Images
Figure CN224259169U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway subgrade maintenance technology, specifically a highway subgrade maintenance device. Background Technology
[0002] As the core infrastructure of the transportation system, the traffic capacity and service life of highways directly depend on the stability and bearing capacity of the roadbed. As the load-bearing foundation of the highway structure, the roadbed bears the vehicle load and environmental load transmitted by the road surface. It is exposed to the natural environment for a long time and is susceptible to various diseases caused by complex factors, which has become a key bottleneck restricting the service performance of highways.
[0003] During the long-term service of highways, the roadbed is prone to various types and sizes of damage due to factors such as vehicle loads, changes in ambient temperature, and rainwater erosion. These damages manifest as large cracks and potholes, as well as small gaps and minor damage near the curb and corners. If these damages are not maintained in a timely manner, they will gradually expand and affect the structural stability of the highway, shortening its service life.
[0004] Most devices are equipped with only a single type of discharge head. When maintaining large cracks and potholes, if a small discharge head is used, it is necessary to fill the holes repeatedly, resulting in extremely low work efficiency and making it difficult to meet the needs of rapid repair of large-area damage. When maintaining small gaps or corner areas, if a large discharge head is used, it is easy to cause problems such as overflow of maintenance materials and inaccurate filling. This not only wastes materials but also requires subsequent cleaning work, increasing maintenance costs. Some devices with replaceable discharge heads can adapt to different scenarios to a certain extent, but the replacement process requires stopping the machine to remove the old discharge head and install the new one. The operation is cumbersome and time-consuming. Especially in highway maintenance operations with high traffic volume, the long downtime will exacerbate traffic congestion and pose safety hazards.
[0005] Therefore, a highway subgrade maintenance device is proposed to address the above problems. Utility Model Content
[0006] The purpose of this utility model is to provide a highway subgrade maintenance device to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A highway subgrade maintenance device includes a main body of equipment, an electrical control box installed on the outside of the main body of equipment, a material discharge mechanism provided on the outside of the main body of equipment, the material discharge mechanism including a pump body, a transfer box and a material guide pipe, and a filling head conversion mechanism provided on the outside of the material guide pipe;
[0009] The filling head conversion mechanism includes a connecting cover, the inside of which is provided with a rotating groove. A through pipe is fixedly connected to the outside of the connecting cover, and a large discharge head and a small discharge head are fixedly connected to the outside of the through pipe. A ball bearing is rotatably connected inside the rotating groove, and a first through hole and a second through hole are provided inside the ball bearing.
[0010] As a further optimization of this utility model, the pump body is fixedly connected to the outside of the main body of the equipment, and the feed end of the pump body is fixedly connected to the inside of the main body of the equipment. A conduit is fixedly connected to the outside of the pump body, a connecting pipe is fixedly connected to the outside of the transfer box, a regulating valve is fixedly connected to the end of the connecting pipe away from the transfer box, a flow pipe is fixedly connected to the top of the regulating valve, and a flexible hose is fixedly connected to the outside of the flow pipe.
[0011] As a further optimization of this utility model, a stabilizing plate is fixedly connected to the outer side of the connecting cover, a micro motor is fixedly connected to the bottom of the stabilizing plate, a rotating shaft is fixedly connected to the output end of the micro motor, and a movable tube is fixedly connected to the outer side of the connecting cover.
[0012] As a further optimization of this utility model, the transfer box is fixedly connected to the outside of the main body of the equipment, the connecting cover is fixedly connected to the bottom of the guide pipe, and the two are in a connected state, and the outer side of the ball is in close contact with the inner wall of the rotating groove.
[0013] As a further optimization of this utility model, the following features are provided: the through pipes are symmetrically distributed on the outside of the connecting cover; the large discharge head and the small discharge head are symmetrically distributed on the outside of the connecting cover through the through pipes; the first through hole and the second through hole are connected and arranged in an L-shape; and the diameters of the first through hole, the second through hole, the guide pipe, and the through pipe are matched.
[0014] As a further optimization of this utility model, the end of the conduit away from the pump body is fixedly connected to the inside of the transfer box, and the flow tube is fixedly connected to the outside of the main body of the equipment.
[0015] As a further optimization of this utility model, the micro motor is fixedly connected to the outside of the connecting cover by a stabilizing plate, the rotating shaft passes through the inside of the movable tube, and the end of the rotating shaft away from the micro motor is fixedly connected to the outside of the ball bearing, and a sealing ring is provided between the rotating shaft and the movable tube.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] In this invention, the symmetrical distribution design of the large and small discharge heads in the filling head conversion mechanism can be adapted to the filling of large cracks and potholes in the roadbed, as well as the fine maintenance of small gaps and corner areas. For example, the large discharge head can be used to improve filling efficiency for large-area damage to the roadbed, while the small discharge head can be switched to ensure filling accuracy for small gaps near the curb. There is no need to replace the entire set of equipment, which improves the adaptability of the device to different maintenance scenarios. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the side structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the outer structure of the filling head conversion mechanism of this utility model;
[0021] Figure 4 This is a schematic diagram of the internal structure of the connecting cover of this utility model;
[0022] Figure 5 This is a schematic diagram of the outer structure of the material discharge mechanism of this utility model;
[0023] Figure 6 This utility model Figure 4 Enlarged view of the structure at point A in the middle.
[0024] In the diagram: 1. Main body of the equipment; 2. Electrical control box; 3. Discharge mechanism; 31. Pump body; 32. Conduit; 33. Transfer box; 34. Connecting pipe; 35. Regulating valve; 36. Flow pipe; 37. Hose; 38. Guide pipe; 4. Filling head conversion mechanism; 41. Connecting cover; 42. Rotating groove; 43. Through pipe; 44. Large discharge head; 45. Small discharge head; 46. Stabilizing plate; 47. Micro motor; 48. Rotating shaft; 49. Movable pipe; 410. Ball bearing; 411. Through hole No. 1; 412. Through hole No. 2. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0027] Please see Figures 1-6 This utility model provides a technical solution:
[0028] A roadbed maintenance device includes a main body 1, an electrical control box 2 installed on the outside of the main body 1, a discharge mechanism 3 provided on the outside of the main body 1, the discharge mechanism 3 includes a pump body 31, a transfer box 33 and a guide pipe 38, and a filling head conversion mechanism 4 provided on the outside of the guide pipe 38.
[0029] The filling head conversion mechanism 4 includes a connecting cover 41, the inside of which is provided with a rotating groove 42. A through pipe 43 is fixedly connected to the outside of the connecting cover 41. A large discharge head 44 and a small discharge head 45 are fixedly connected to the outside of the through pipe 43. A ball bearing 410 is rotatably connected inside the rotating groove 42. A first through hole 411 and a second through hole 412 are provided inside the ball bearing 410.
[0030] It should be noted that: a stabilizing plate 46 is fixedly connected to the outside of the connecting cover 41, a micro motor 47 is fixedly connected to the bottom of the stabilizing plate 46, a rotating shaft 48 is fixedly connected to the output end of the micro motor 47, a movable tube 49 is fixedly connected to the outside of the connecting cover 41, the transfer box 33 is fixedly connected to the outside of the main body 1 of the equipment, the connecting cover 41 is fixedly connected to the bottom of the guide tube 38, and the two are in a connected state, and the outer side of the ball 410 is tightly attached to the inner wall of the rotating groove 42.
[0031] Furthermore: the through pipe 43 is symmetrically distributed on the outside of the connecting cover 41. The large discharge head 44 and the small discharge head 45 are symmetrically distributed on the outside of the connecting cover 41 through the through pipe 43. The first through hole 411 and the second through hole 412 are connected and are arranged in an L-shape. The diameters of the first through hole 411, the second through hole 412 and the guide pipe 38 are matched with the diameters of the through pipe 43. The end of the guide pipe 32 away from the pump body 31 is fixedly connected to the inside of the transfer box 33. The flow pipe 36 is fixedly connected to the outside of the main body 1 of the equipment.
[0032] Furthermore, the structure of "ball bearing 410 rotating within rotating groove 42, driven by rotating shaft 48 and sealed with movable tube 49" is not only for achieving the rotation function, but more importantly, to ensure the "sealing" of asphalt transportation. The gap between the two needs to be controlled within the range of 0.1-0.3mm to prevent asphalt leakage from the gap. At the same time, the bending angle of the L-shaped first through hole 411 and the second through hole 412 needs to be precisely matched with the distribution angle of the through pipe 43, such as both being 90°, to ensure that the ball bearing 410 can quickly align with the guide pipe 38 and the through pipe 43 after rotation, reducing asphalt residue during the switching process.
[0033] Specifically: the connecting cover 41 is fixed to the bottom of the guide pipe 38 and connected, and the through pipe 43 is symmetrically distributed on the outside of the connecting cover 41. The "fixed connection" design of the guide pipe 38 and the connecting cover 41 requires the use of flange connection to ensure that the asphalt will not leak from the connection when it is transported under high pressure. At the same time, the "symmetrical distribution" of the through pipe 43 is not only for the aesthetic layout, but more importantly, it is to balance the weight of the connecting cover 41 and ensure the stable operation of the ball bearing 410 in the rotating groove 42, thereby improving the overall stability of the device from the perspective of structural balance.
[0034] Meanwhile, the pump body 31 is directly connected to the interior of the transfer box 33 through the conduit 32, and both are fixed to the outside of the main body 1. The core logic of this structural design is "short path transportation + fixed installation". The short path conduit 31 can reduce the heat loss of asphalt during transportation, while the fixed installation prevents the conduit 32 from falling off due to vibration during the operation of the pump body 31. From a structural perspective, this ensures the "thermal stability" and "connection reliability" of asphalt transportation. At the same time, the transfer box 33, as a "buffer node", can be designed according to actual operation requirements, reserving space for subsequent structural optimization.
[0035] As a further implementation of this solution, the pump body 31 is fixedly connected to the outside of the equipment body 1, and the feed end of the pump body 31 is fixedly connected to the inside of the equipment body 1. A conduit 32 is fixedly connected to the outside of the pump body 31, and a connecting pipe 34 is fixedly connected to the outside of the transfer box 33. A regulating valve 35 is fixedly connected to the end of the connecting pipe 34 away from the transfer box 33. A flow pipe 36 is fixedly connected to the top of the regulating valve 35, and a flexible hose 37 is fixedly connected to the outside of the flow pipe 36.
[0036] It should be noted that: the micro motor 47 is fixedly connected to the outside of the connecting cover 41 by the stabilizing plate 46, the rotating shaft 48 passes through the inside of the movable tube 49, and the end of the rotating shaft 48 away from the micro motor 47 is fixedly connected to the outside of the ball 410. A sealing ring is provided between the rotating shaft 48 and the movable tube 49.
[0037] Furthermore, the regulating valve 35 is connected to the transfer box 33 via the connecting pipe 34 and to the hose 37 via the flow pipe 36. This structure forms a combination of "rigid regulation + flexible conveying". The regulating valve 35 can achieve automated flow regulation through the electrical control box 2. For example, different flow rates can be matched according to the specifications of the discharge head. The large discharge head 44 corresponds to a large flow rate, and the small discharge head 45 corresponds to a small flow rate. The flexible nature of the hose 37 makes it convenient for operators to adjust the angle and position of the guide pipe 38. It is especially suitable for maintenance operations in areas with irregular roadbed damage, solving the problem that "rigid pipes cannot flexibly adapt to complex working surfaces".
[0038] Work process: Before the device is put into operation, the operator inputs the maintenance operation parameters through the electrical control box 2. The electrical control box 2, as the core control unit, transmits the instructions synchronously to the pump body 31 and the micro motor 47 to ensure that each execution component starts according to the preset parameters, and at the same time monitors the equipment operation status in real time to avoid operation failure.
[0039] When the pump body 31 receives the instruction from the electrical control box 2, its feed end draws the curing material from inside the main body 1 of the equipment. After being pressurized by the pump body 31, the material is conveyed to the outer fixed conduit 32. The curing material enters the transfer box 33 through the conduit 32. The transfer box 33 plays a buffering and stabilizing role to avoid pressure fluctuations affecting the filling effect. Then the material flows to the regulating valve 35 through the connecting pipe 34 on the outside of the transfer box 33. The operator can accurately control the amount of curing material conveyed by the electrical control box 2 or manually adjust the regulating valve 35 to adapt to the needs of different width roadbed gaps. After the curing material is regulated, it enters the flexible hose 37 through the flow pipe 36. The hose 37 can adjust the conveying angle according to the working scene, and finally conveys the material to the guide pipe 38 to prepare for the subsequent filling operation.
[0040] Next, based on the dimensions of the roadbed gaps, the operator sends a conversion command to the micro motor 47 via the electrical control box 2. The micro motor 47 is fixed to the outside of the connecting cover 41 by the stabilizing plate 46. After starting, it drives the output shaft 48 to rotate. The shaft 48 passes through the interior of the movable tube 49, which is fixedly connected to the connecting cover 41. The sealing ring between the shaft 48 and the movable tube 49 can prevent material leakage. When rotating, it drives the ball bearings 410 fixed at the end to rotate synchronously in the rotating groove 42 inside the connecting cover 41. Since the ball bearings 410 have an L-shaped and interconnected opening with a diameter that matches the guide tube 38 and the through tube 43, the ball bearings 410 have a No. 1 through tube. When the large discharge head 44 is required, the micro motor 47 drives the ball bearing 410 to rotate so that the first through hole 411 aligns with the outlet of the guide tube 38 and the second through hole 412 aligns with the through tube 43 connecting the large discharge head 44, forming a material channel of "guide tube 38 → first through hole 411 → second through hole 412 → large discharge head 44". If it is necessary to switch to the small discharge head 45, the micro motor 47 drives the ball bearing 410 to rotate in the opposite direction so that the second through hole 412 aligns with the through tube 43 connecting the small discharge head 45. The whole process does not require disassembly or replacement of parts, which can greatly improve the work efficiency.
[0041] Finally, after the filling head and channel are switched, the maintenance material in the guide pipe 38 enters the corresponding through pipe 43 through the through hole inside the ball bearing 410, and is eventually squeezed out evenly from the large discharge head 44 or the small discharge head 45 and filled into the roadbed gaps. During the operation, the operator can adjust the position of the discharge head through the hose 37 to ensure that the maintenance material fills the gaps without voids. After the material solidifies, it can achieve the maintenance effects of roadbed reinforcement and seepage prevention, thereby extending the service life of the highway.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A highway subgrade maintenance device, comprising a main body (1), characterized in that: An electrical control box (2) is installed on the outside of the main body (1) of the equipment. A discharge mechanism (3) is provided on the outside of the main body (1). The discharge mechanism (3) includes a pump body (31), a transfer box (33) and a guide pipe (38). A filling head conversion mechanism (4) is provided on the outside of the guide pipe (38). The filling head conversion mechanism (4) includes a connecting cover (41), the inside of which is provided with a rotating groove (42). A through pipe (43) is fixedly connected to the outside of the connecting cover (41). A large discharge head (44) and a small discharge head (45) are fixedly connected to the outside of the through pipe (43). A ball bearing (410) is rotatably connected inside the rotating groove (42). A first through hole (411) and a second through hole (412) are provided inside the ball bearing (410).
2. The highway subgrade maintenance device according to claim 1, characterized in that: The pump body (31) is fixedly connected to the outside of the equipment body (1), and the feed end of the pump body (31) is fixedly connected to the inside of the equipment body (1). A conduit (32) is fixedly connected to the outside of the pump body (31), and a connecting pipe (34) is fixedly connected to the outside of the transfer box (33). A regulating valve (35) is fixedly connected to the end of the connecting pipe (34) away from the transfer box (33). A flow pipe (36) is fixedly connected to the top of the regulating valve (35), and a hose (37) is fixedly connected to the outside of the flow pipe (36).
3. The highway subgrade maintenance device according to claim 1, characterized in that: A stabilizing plate (46) is fixedly connected to the outside of the connecting cover (41), a micro motor (47) is fixedly connected to the bottom of the stabilizing plate (46), a rotating shaft (48) is fixedly connected to the output end of the micro motor (47), and a movable tube (49) is fixedly connected to the outside of the connecting cover (41).
4. A highway subgrade maintenance device according to claim 1, characterized in that: The transfer box (33) is fixedly connected to the outside of the main body (1) of the equipment, the connecting cover (41) is fixedly connected to the bottom of the guide pipe (38), and the two are in a connected state. The outer side of the ball (410) is closely attached to the inner wall of the rotating groove (42).
5. A highway subgrade maintenance device according to claim 1, characterized in that: The through pipe (43) is symmetrically distributed on the outside of the connecting cover (41). The large discharge head (44) and the small discharge head (45) are symmetrically distributed on the outside of the connecting cover (41) through the through pipe (43). The first through hole (411) and the second through hole (412) are in a connected state and are arranged in an L-shape. The diameters of the first through hole (411), the second through hole (412), the guide pipe (38), and the through pipe (43) are compatible.
6. A highway subgrade maintenance device according to claim 2, characterized in that: The end of the conduit (32) away from the pump body (31) is fixedly connected to the inside of the transfer box (33), and the flow pipe (36) is fixedly connected to the outside of the equipment body (1).
7. A highway subgrade maintenance device according to claim 3, characterized in that: The micro motor (47) is fixedly connected to the outside of the connecting cover (41) by a stabilizing plate (46). The rotating shaft (48) passes through the inside of the movable tube (49), and the end of the rotating shaft (48) away from the micro motor (47) is fixedly connected to the outside of the ball (410). A sealing ring is provided between the rotating shaft (48) and the movable tube (49).