A maintenance structure for old roadbeds with widening and splicing functions and its application method

Abstract

This application discloses a roadbed maintenance structure and its usage method with a widening and splicing function, belonging to the field of roadbed maintenance. It includes a frame, with a first drive wheel and a second drive wheel respectively mounted on both sides of the bottom of the frame. A U-shaped handle is welded to the upper end of the frame. An asphalt storage tank for storing and releasing asphalt is mounted on the top of the frame via a welded first bracket. A dispensing adjustment component with a widening and splicing function is installed inside the frame. The dispensing adjustment component includes a T-shaped baffle slidably connected inside the frame for controlling the amount of asphalt dispensed from the asphalt storage tank. This application, by setting up the dispensing adjustment component, controls the degree of asphalt dispensing from the asphalt storage tank. Simultaneously, the movement of the T-shaped baffle controls the overall specifications of the V-shaped trowel, giving the V-shaped trowel a widening function. This allows the V-shaped trowel in this application to be adjusted for use according to different maintenance areas.

Description

Technical Field

[0001] This application relates to the field of old roadbed maintenance, and more specifically, to an old roadbed maintenance structure with widening and splicing function and its usage method. Background Technology

[0002] The quality of the roadbed directly affects the quality and performance of the road surface. Therefore, after the roadbed is laid, it needs to be repaired and maintained using roadbed repair and maintenance devices to facilitate the normal progress of subsequent construction. Generally, it is maintained using materials such as mortar and concrete.

[0003] Chinese invention patent CN 117144761 A discloses a roadbed maintenance device for highway engineering, belonging to the field of highway engineering. It includes a mounting plate, a fixed outer shell fixedly connected to the top of the mounting plate, a motor fixedly connected to the top of the fixed outer shell, a rotating rod fixedly connected to the output end of the motor, the rotating rod extending through the fixed outer shell and the mounting plate to the underside of the mounting plate, and multiple stirring rods fixedly connected to the side wall of the inner part of the rotating rod within the fixed outer shell. A connecting rod is rotatably connected to the bottom of the mounting plate, and a squeegee is fixedly connected to the bottom of the connecting rod. The connecting rod is located on one side of the rotating rod, and a fixed gear is fixedly sleeved on the connecting rod. However, in the highway maintenance process described in the above application, the squeegee has a single specification, making it difficult to adjust according to the size of the maintenance area. If the maintenance area is large, the squeegee application will result in poor smoothing effect. Summary of the Invention

[0004] This invention addresses the problem in existing technologies where the screed plate has a single specification, making it impossible to adjust to different maintenance areas. This results in poor screeding performance when the maintenance area is large. Therefore, this invention proposes a maintenance structure for old roadbeds with widening and splicing capabilities, along with its usage method. This allows for adjustment of the screed plate specifications, improving the screeding effect.

[0005] To achieve the above objectives, this application provides an old roadbed maintenance structure with widening splicing function, including a frame, a first drive wheel and a second drive wheel respectively mounted on the bottom two sides of the frame, a U-shaped handle welded to the upper end of the frame, an asphalt storage tank for storing and releasing asphalt mounted on the top of the frame via a welded first bracket, and a delivery adjustment component with widening splicing function mounted inside the frame.

[0006] The dispensing adjustment assembly includes a T-shaped baffle that is slidably connected inside the vehicle frame for controlling the amount of asphalt dispensed into the asphalt storage tank, and a first spring piece for resetting the T-shaped baffle is fitted between the T-shaped baffle and the vehicle frame.

[0007] A pull rod is slidably connected inside a U-shaped handle, and a nylon cloth strip is fixed on the pull rod. The end of the nylon cloth strip away from the pull rod is fixed to a T-shaped baffle.

[0008] A V-shaped squeegee is mounted in the vehicle frame via a second bracket. The top of the V-shaped squeegee has a through groove. Both sides of the V-shaped squeegee are rotatably connected to widening plates via first rotating rods. A gear is fixed to the top of the first rotating rod. The V-shaped squeegee has two embedded first hydraulic chambers. One end of each of the two first hydraulic chambers is slidably connected to a hydraulic locking rod that meshes with the gear. The other ends of the two first hydraulic chambers are connected to and fixed with a first liquid storage bladder assembled in the through groove.

[0009] Preferably, two guide rollers for changing the transmission direction of the nylon tape are rotatably connected inside the frame. The nylon tape on the pull rod passes through the two guide rollers in a staggered manner and is fixed to the T-shaped baffle. By changing the transmission direction of the nylon tape through the two guide rollers, and by staggering the passage through the two guide rollers, the nylon tape can be kept in a taut state.

[0010] Preferably, the V-shaped smoothing plate has two symmetrically arranged second hydraulic chambers embedded inside. One end of each of the two second hydraulic chambers is slidably connected to a hydraulic support rod, and the other end of each of the two second hydraulic chambers is connected to and fixed with a second liquid storage bladder assembled in a through groove. When the widening plates on both sides of the V-shaped smoothing plate rotate and unfold, the second liquid storage bladders are compressed, causing the hydraulic support rods to extend and support the back of the widening plates, thereby increasing the strength of the widening plates.

[0011] Preferably, the first support is equipped with a mixing assembly that provides a mixing effect to the asphalt storage tank. The mixing assembly includes an L-shaped mixing rod rotatably connected to the asphalt storage tank, a turntable rotatably connected to the first support, a second rotating rod rotatably connected to the first support via a support block, and a third rotating rod fixed between the two second drive wheels. The L-shaped mixing rod has a movable groove, and a cylindrical rod slidably connected to the front end of the turntable is fixed in the movable groove. The second rotating rod is connected to the turntable and the third rotating rod via a first transmission belt and a second transmission belt, respectively. When the second drive wheel rotates, the third rotating rod connected in its middle will drive the second rotating rod to rotate via the second transmission belt. The second rotating rod will drive the turntable to rotate via the first transmission belt. At this time, the cylindrical rod on the turntable will move in the movable groove, thereby causing the L-shaped mixing rod to swing left and right to mix the asphalt in the asphalt storage tank and prevent the asphalt in the asphalt storage tank from clumping.

[0012] Preferably, the length of the movable groove is greater than the vertical movement path of the cylindrical rod, and the width of the movable groove is greater than the diameter of the cylindrical rod.

[0013] Preferably, a preliminary flattening assembly is installed inside the frame near the first drive wheel. The preliminary flattening assembly includes a counterweight mounted on the frame via a third bracket. A flattening roller is rotatably connected to the bottom of the third bracket via two telescopic rods, and the two telescopic rods are connected to the third bracket via a second spring. The counterweight increases the weight at the rear of the frame, and this weight is transferred to the flattening roller, improving its flattening effect.

[0014] Preferably, the flattening roller has multiple rectangular grooves inside, and each rectangular groove is movably connected to an impact cylindrical rod. When the flattening roller rotates, the multiple impact cylindrical rods inside it will undergo different displacements, thereby creating multiple impact effects to further enhance the flattening effect of the flattening roller.

[0015] A method for using an old roadbed maintenance structure with widening and splicing functions includes the following steps:

[0016] Step 1: Hold the U-shaped handle and push the equipment to the area that needs maintenance. During the movement of the equipment, the mixing component connected to the second drive wheel will continuously stir the molten asphalt in the asphalt storage tank to prevent clumping.

[0017] Step 2: After the equipment is moved to a suitable position, the discharge port at the bottom of the asphalt storage tank is located above the maintenance area. At this time, by controlling the movement of the T-shaped baffle in the feeding adjustment component, the molten asphalt in the asphalt storage tank can be fed out. The amount of asphalt fed out can be adjusted according to the size of the maintenance area.

[0018] Step 3: While starting to apply asphalt, continue to move the entire mobile equipment and use the V-shaped trowel in the application adjustment component to gather and squeeze the applied asphalt into the maintenance area for repair work;

[0019] Step 4: If the maintenance area is large, the widening plates on both sides of the V-shaped trowel can be rotated and unfolded by moving the T-shaped baffle a second time. At this time, the amount of asphalt dispensed in the asphalt storage box increases, and the shrinking and squeezing area of ​​the V-shaped trowel increases, which can adapt to the roadbed with a large maintenance area.

[0020] Step 5: During the equipment movement, the laid asphalt is initially flattened by the flattening rollers in the initial flattening component;

[0021] Step Six: After maintenance, loosen the pull rod, and the equipment will reset under the rebound force of the two first spring plates.

[0022] The advantages of this application are:

[0023] (1) This application controls the amount of asphalt added to the asphalt storage tank by setting up a dispensing adjustment component. At the same time, it can also control the overall specifications of the V-shaped trowel by moving the T-shaped baffle, so that the V-shaped trowel has the function of widening. This allows the V-shaped trowel in this application to be adjusted and used according to different maintenance areas.

[0024] (2) By setting up a mixing assembly, when the second drive wheel rotates, the third rotating rod connected in the middle will drive the second rotating rod to rotate through the second transmission belt. The second rotating rod will drive the turntable to rotate through the first transmission belt. At this time, the cylindrical rod on the turntable will move in the movable groove, thereby causing the L-shaped mixing rod to swing left and right to mix the asphalt in the asphalt storage tank and prevent the asphalt in the asphalt storage tank from clumping.

[0025] (3) This application uses a preliminary flattening component to perform preliminary flattening operation on the maintenance area where asphalt is laid. At the same time, when the flattening roller rotates, the multiple impact cylinders inside it will undergo displacement in different states, thereby forming multiple impact effects to further improve the flattening effect of the flattening roller. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0027] Figure 1 This is a three-dimensional structural diagram of the entire invention from a frontal view.

[0028] Figure 2 This is a three-dimensional structural diagram of the entire invention from a bottom-view perspective.

[0029] Figure 3 This is a schematic diagram of the structure of the dispensing and adjusting component of the present invention.

[0030] Figure 4 This is a schematic diagram of the V-shaped trowel plate and its connection structure of the present invention.

[0031] Figure 5 This is a schematic diagram of the working state of the V-shaped trowel plate and the widened plate of the present invention.

[0032] Figure 6 This is a schematic diagram showing the position of the stirring component of the present invention.

[0033] Figure 7 This is a schematic diagram of the stirring assembly of the present invention.

[0034] Figure 8 This is a schematic diagram of the preliminary flattening component of the present invention.

[0035] Figure 9 This is a cross-sectional schematic diagram of the flattening roller of the present invention.

[0036] In the above image,

[0037] 100. Frame; 200. First drive wheel; 300. Second drive wheel; 400. U-shaped handle; 500. Asphalt storage tank; 900. First support frame;

[0038] 600. Dispensing and adjusting assembly; 610. T-shaped baffle; 620. First spring; 630. Pull rod; 640. Nylon tape; 650. Guide roller; 660. Second bracket; 670. V-shaped squeegee; 680. First rotating rod; 690. Widening plate; 6100. Gear; 6110. First hydraulic chamber; 6120. First liquid storage bladder; 6130. Hydraulic toothed rod; 6140. Second hydraulic chamber; 6150. Hydraulic support rod; 6160. Second liquid storage bladder;

[0039] 700. Stirring assembly; 710. L-shaped stirring rod; 720. Movable groove; 730. Turntable; 740. Cylindrical rod; 750. Second rotating rod; 760. First transmission belt; 770. Second transmission belt; 780. Third rotating rod;

[0040] 800. Preliminary flattening assembly; 810. Third support; 820. Counterweight; 830. Telescopic rod; 840. Second spring; 850. Flattening roller; 860. Rectangular groove; 870. Impact cylindrical rod. Detailed Implementation

[0041] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0042] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0043] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0044] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0045] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example 1

[0047] See Figures 1-5 This embodiment provides a roadbed maintenance structure with widening and splicing function, including a frame 100. A first drive wheel 200 and a second drive wheel 300 are respectively mounted on the bottom two sides of the frame 100. A U-shaped handle 400 is welded to the upper end of the frame 100. A limiting plate is connected to the U-shaped handle 400 by two elastic telescopic rods. Figure 3 In the upper left area), an asphalt storage tank 500 for storing and releasing asphalt is assembled on the top of the frame 100 via a welded first bracket 900. A discharge port with a circular structure is provided at the bottom of the asphalt storage tank 500. A dispensing adjustment component 600 with a widening splicing function is assembled inside the frame 100.

[0048] The dispensing adjustment component 600 includes a T-shaped baffle 610 slidably connected inside the frame 100 for controlling the amount of asphalt dispensed into the asphalt storage tank 500. The T-shaped baffle 610 is located at the discharge port at the bottom of the asphalt storage tank 500, and the area of ​​the T-shaped baffle 610 at the bottom of the asphalt storage tank 500 has a circular plate structure. When the T-shaped baffle 610 is completely in contact with the discharge port at the bottom of the asphalt storage tank 500, it can completely block the discharge port. A first spring piece 620 for resetting the T-shaped baffle 610 is assembled between the T-shaped baffle 610 and the frame 100.

[0049] A pull rod 630 is slidably connected within the U-shaped handle 400. A nylon fabric tape 640 is fixed to the pull rod 630. The end of the nylon fabric tape 640 away from the pull rod 630 is fixed to a T-shaped baffle 610. Two guide rollers 650 are rotatably connected within the frame 100 to change the transmission direction of the nylon fabric tape 640. The nylon fabric tape 640 on the pull rod 630 passes through the two guide rollers 650 in a staggered manner and is fixed to the T-shaped baffle 610. The transmission direction of the nylon fabric tape 640 is changed by the two guide rollers 650. At the same time, the staggered passage through the two guide rollers 650 can keep the nylon fabric tape 640 in a taut state.

[0050] It is worth noting that in this application, a V-shaped squeegee 670 is mounted inside the vehicle frame 100 via a second bracket 660. The top of the V-shaped squeegee 670 has a through slot, designed to facilitate the movement of the T-shaped baffle 610. Both sides of the V-shaped squeegee 670 are rotatably connected to widening plates 690 via first rotating rods 680. The first rotating rods 680 are rotatably connected to the V-shaped squeegee 670, and the widening plates 690 are fixed to the first rotating rods 680. A gear 6100 is fixed to the top of the first rotating rods 680. The V-shaped squeegee 670 has two embedded first hydraulic chambers 6110. One end of each of the two first hydraulic chambers 6110 is slidably connected to a hydraulic locking rod 6130 that meshes with a gear 6100. Movement of the hydraulic locking rod 6130 drives the gear 6100 and its bottom first rotating rod 680 to rotate, thereby controlling the widening plate 690 to rotate and unfold. The other ends of the two first hydraulic chambers 6110 are connected to and fixed with a first liquid storage bladder 6120 assembled in a through groove. After the liquid in the 0 container enters the first hydraulic chamber 6110, it can rotate the widening plate 690 by 180 degrees. The dispensing adjustment component 600 controls the amount of asphalt dispensed into the asphalt storage tank 500. Simultaneously, the movement of the T-shaped baffle 610 controls the overall dimensions of the V-shaped trowel 670, giving it a widening function. This allows the V-shaped trowel 670 to be adjusted for use in maintenance areas of different sizes. The V-shaped trowel 670 has two internally embedded... Two symmetrically arranged second hydraulic chambers 6140 are connected to a hydraulic support rod 6150 at one end of each second hydraulic chamber 6140. The other end of each second hydraulic chamber 6140 is connected to and fixed with a second liquid storage bladder 6160 assembled in a through groove. When the widening plates 690 on both sides of the V-shaped squeegee 670 rotate and unfold, the second liquid storage bladder 6160 will be squeezed, causing the hydraulic support rod 6150 to extend out to support the back of the widening plate 690 and to improve the strength of the widening plate 690.

[0051] Further, see Figures 6-7 In this application, the first support 900 is equipped with a mixing assembly 700 that provides a mixing effect to the asphalt storage tank 500. The mixing assembly 700 includes an L-shaped mixing rod 710 rotatably connected inside the asphalt storage tank 500, a turntable 730 rotatably connected to the first support 900, a second rotating rod 750 rotatably connected to the first support 900 via a support block, and a third rotating rod 780 fixed between the two second drive wheels 300. See reference [link to relevant documentation]. Figure 7The turntable 730 is rotatably connected to its back L-shaped plate via a rotating rod (not shown) on its back. The L-shaped plate is mounted on the first bracket 900. The L-shaped stirring rod 710 has a movable groove 720. A cylindrical rod 740 is fixedly slidably connected to the front end of the turntable 730 within the movable groove 720. The length of the movable groove 720 is greater than the vertical movement path of the cylindrical rod 740, and the width of the movable groove 720 is greater than the diameter of the cylindrical rod 740. The second rotating rod 750 is connected to the rotating rod (not shown) on the back of the turntable 730 via a first transmission belt 760. The second rotating rod 750 is connected to the rotating rod (not shown) on the back of the turntable 730 via a second transmission belt. The belt 770 is connected to the third rotating rod 780. When the second drive wheel 300 rotates, the third rotating rod 780 connected in the middle will drive the second rotating rod 750 to rotate through the second transmission belt 770. The second rotating rod 750 will drive the turntable 730 to rotate through the first transmission belt 760. At this time, the cylindrical rod 740 on the turntable 730 will slide in the movable groove 720. Since the cylindrical rod 740 is in a circular motion, under the action of the movable groove 720, the cylindrical rod 740 will drive the L-shaped stirring rod 710 to swing left and right to stir the asphalt in the asphalt storage tank 500 and prevent the asphalt in the asphalt storage tank 500 from clumping.

[0052] Furthermore, see Figures 8-9 In this application, a preliminary flattening assembly 800 is installed inside the frame 100 near the first drive wheel 200. The preliminary flattening assembly 800 includes a counterweight 820 mounted on the frame 100 via a third bracket 810. A flattening roller 850 is rotatably connected to the bottom of the third bracket 810 via two telescopic rods 830. The flattening roller 850 is at the same height as the first drive wheel 200, so when the first drive wheel 200 rotates on the ground, the flattening roller 850 also rotates on the ground. The two telescopic rods 830 and the third bracket 810 are connected to the frame 100. The components 0 are connected by a second spring 840. The weight of the rear of the frame 100 is increased by the counterweight 820. At the same time, this weight is transmitted to the flattening roller 850, which improves the flattening effect of the flattening roller 850. The flattening roller 850 has multiple rectangular grooves 860 inside. Each rectangular groove 860 is movably connected to an impact cylindrical rod 870. When the flattening roller 850 rotates, the multiple impact cylindrical rods 870 inside it will undergo different displacements, thereby forming multiple impact effects to further improve the flattening effect of the flattening roller 850.

[0053] A method for using an old roadbed maintenance structure with widening and splicing functions includes the following steps:

[0054] Step 1: Hold the U-shaped handle 400 and push the equipment to the area requiring maintenance. During the movement of the equipment, as the second drive wheel 300 rotates, the third rotating rod 780 connected in the middle of the two second drive wheels 300 will rotate. Then, the third rotating rod 780 will drive the second rotating rod 750 to rotate through the second transmission belt 770. The second rotating rod 750 will drive the turntable 730 to rotate through the first transmission belt 760. At this time, the cylindrical rod 740 on the turntable 730 will slide in the movable groove 720. Since the cylindrical rod 740 is in a circular motion, under the action of the movable groove 720, the cylindrical rod 740 will drive the L-shaped stirring rod 710 to swing left and right to stir the asphalt in the asphalt storage tank 500 and prevent the asphalt in the asphalt storage tank 500 from clumping.

[0055] Step Two: After the equipment is moved to a suitable position, the bottom discharge port of the asphalt storage tank 500 is located above the maintenance area. When the maintenance area is small, pull the lever 630 to the limit plate. At this time, the lever 630 pulls the nylon belt 640 to move, which in turn moves the T-shaped baffle 610. This creates an open gap between the T-shaped baffle 610 and the bottom discharge port of the asphalt storage tank 500, allowing the molten asphalt inside the asphalt storage tank 500 to flow out through this gap. The outflow of asphalt is relatively small at this time, suitable for use when the maintenance area is small. When the maintenance area... When the area is large, after pulling the lever 630 to the limit plate, continue pulling the lever 630 until it can no longer be pulled. At this time, the T-shaped baffle 610 is pulled a certain distance again. The gap between the T-shaped baffle 610 and the bottom discharge port of the asphalt storage tank 500 is widened again, allowing the molten asphalt in the asphalt storage tank 500 to flow out through this gap. At this time, the amount of asphalt flowing out is large, which is suitable for use when the maintenance area is large. By changing the pulling distance of the lever 630, the amount of asphalt added can be changed, so that this application can adjust the amount of asphalt added according to the size of the maintenance area.

[0056] Step 3: While starting to apply asphalt, continue to move the entire mobile equipment. The V-shaped trowel 670 inside the application adjustment component 600 gathers and squeezes the applied asphalt into the maintenance area. In Step 2, when the maintenance area is small, the displacement distance of the T-shaped baffle 610 is very short and will not contact the internal structure of the V-shaped trowel 670. Therefore, the V-shaped trowel 670 body gathers and smooths the asphalt for repair work.

[0057] Step 4: When the maintenance area is large in Step 2, the displacement distance of the T-shaped baffle 610 is relatively long. Therefore, after the T-shaped baffle 610 moves, it will first squeeze the first liquid storage bladder 6120. At this time, the liquid in the first liquid storage bladder 6120 will enter the first hydraulic chamber 6110. At this time, the liquid pressure in the first hydraulic chamber 6110 will increase, which will push the hydraulic toothed rod 6130 to extend. Since the hydraulic toothed rod 6130 is in a meshing state with the gear 6100, it will drive the gear 6100 to rotate. At the same time, the first rotating rod 680 fixed to the gear 6100 will drive the widening plate 690 to rotate, so that the widening plates 690 on both sides of the V-shaped screed 670 will rotate and unfold. Since the amount of asphalt added to the asphalt storage tank 500 increases at this time, the closing and squeezing area of ​​the V-shaped screed 670 after being widened by the two widening plates 690 increases, which can adapt to the roadbed with a large maintenance area.

[0058] Step 5: During the movement of the equipment, the flattening roller 850 inside the initial flattening component 800 rolls along with the equipment. The weight of the rear of the frame 100 is increased by the counterweight 820, and this weight is transmitted to the flattening roller 850 to improve its flattening effect. At the same time, when the flattening roller 850 rotates, the multiple impact cylinders 870 inside it will undergo different displacements, thereby forming multiple impact effects to further improve the flattening effect of the flattening roller 850. The flattening roller 850 rolls and compacts the paved asphalt.

[0059] Step Six: After the maintenance of the old roadbed is completed, release the tie rod 630. At this time, the T-shaped baffle 610 will be reset under the rebound force of the two first spring plates 620. At this time, asphalt will no longer be released. At the same time, the reset of the T-shaped baffle 610 will drive the nylon cloth tape 640 to reset.

[0060] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A roadbed maintenance structure with widening splicing function, comprising a frame (100), wherein a first drive wheel (200) and a second drive wheel (300) are respectively mounted on the bottom two sides of the frame (100), a U-shaped handle (400) is welded to the upper end of the frame (100), and an asphalt storage tank (500) for storing and releasing asphalt is mounted on the top of the frame (100) via a welded first bracket (900), and a delivery adjustment component (600) with widening splicing function is installed inside the frame (100). Its features are, The dispensing adjustment assembly (600) includes a T-shaped baffle (610) slidably connected inside the frame (100) for controlling the amount of asphalt dispensed in the asphalt storage tank (500), and a first spring (620) for resetting the T-shaped baffle (610) is fitted between the T-shaped baffle (610) and the frame (100). A pull rod (630) is slidably connected within a U-shaped handle (400), and a nylon cloth strip (640) is fixed on the pull rod (630). One end of the nylon cloth strip (640) away from the pull rod (630) is fixed to a T-shaped baffle (610). A V-shaped squeegee (670) is mounted in the frame (100) via a second bracket (660). The top of the V-shaped squeegee (670) has a through slot. Both sides of the V-shaped squeegee (670) are rotatably connected to a widening plate (690) via a first rotating rod (680). A gear (6100) is fixed at the top of the first rotating rod (680). The V-shaped squeegee (670) has two embedded first hydraulic chambers (6110). One end of each of the two first hydraulic chambers (6110) is slidably connected to a hydraulic toothed rod (6130) that meshes with the gear (6100). The other end of each of the two first hydraulic chambers (6110) is connected to and fixed with a first liquid storage bladder (6120) mounted in the through slot. The frame (100) is rotatably connected to two guide rollers (650) for changing the transmission direction of the nylon tape (640). The nylon tape (640) on the pull rod (630) passes through the two guide rollers (650) in sequence and is fixed on the T-shaped baffle (610). The V-shaped smear plate (670) has two symmetrically arranged second hydraulic chambers (6140) embedded inside. One end of each of the two second hydraulic chambers (6140) is slidably connected to a hydraulic support rod (6150), and the other end of each of the two second hydraulic chambers (6140) is connected to and fixed with a second liquid storage bladder (6160) assembled in the through groove.

2. The old roadbed maintenance structure with widening and splicing function according to claim 1, characterized in that, The first support (900) is equipped with a mixing assembly (700) that provides a mixing effect to the asphalt storage tank (500). The mixing assembly (700) includes an L-shaped mixing rod (710) rotatably connected to the asphalt storage tank (500), a turntable (730) rotatably connected to the first support (900), a second rotating rod (750) rotatably connected to the first support (900) via a support block, and a third rotating rod (780) fixed between two second drive wheels (300). The L-shaped mixing rod (710) has a movable groove (720). The front end of the turntable (730) is fixed with a cylindrical rod (740) slidably connected to the movable groove (720). The second rotating rod (750) is connected to the turntable (730) and the third rotating rod (780) via a first transmission belt (760) and a second transmission belt (770), respectively.

3. The old roadbed maintenance structure with widening and splicing function according to claim 2, characterized in that, The length of the movable groove (720) is greater than the vertical movement path of the cylindrical rod (740), and the width of the movable groove (720) is greater than the diameter of the cylindrical rod (740).

4. The old roadbed maintenance structure with widening and splicing function according to claim 1, characterized in that, A preliminary flattening assembly (800) is installed inside the frame (100) near the first drive wheel (200). The preliminary flattening assembly (800) includes a counterweight (820) mounted on the frame (100) via a third bracket (810). The bottom of the third bracket (810) is rotatably connected to a flattening roller (850) via two telescopic rods (830). The two telescopic rods (830) are connected to the third bracket (810) via a second spring (840).

5. A roadbed maintenance structure with widening and splicing function according to claim 4, characterized in that, The flattening roller (850) has multiple rectangular grooves (860) inside, and each rectangular groove (860) is movably connected to an impact cylindrical rod (870).

6. A method for using an old roadbed maintenance structure with widening and splicing functions, characterized in that, The old roadbed maintenance structure with widening and splicing function as described in any one of claims 1-5 includes the following steps: Step 1: Hold the U-shaped handle (400) and push the equipment to the area that needs maintenance. During the movement of the equipment, the mixing component (700) connected to the second drive wheel (300) will continuously stir the molten asphalt in the asphalt storage tank (500) to prevent clumping. Step 2: After the equipment is moved to a suitable position, the discharge port at the bottom of the asphalt storage tank (500) is located above the maintenance area. At this time, by controlling the movement of the T-shaped baffle (610) in the feeding adjustment component (600), the molten asphalt in the asphalt storage tank (500) is fed. The amount of asphalt fed can be adjusted according to the size of the maintenance area. Step 3: While starting to apply asphalt, continue to move the entire mobile equipment and use the V-shaped trowel (670) in the application adjustment component (600) to gather and squeeze the applied asphalt into the maintenance area for repair work; Step 4: If the maintenance area is large, the widening plates (690) on both sides of the V-shaped trowel (670) are rotated and unfolded by moving the T-shaped baffle (610) twice. At this time, the amount of asphalt added to the asphalt storage box (500) increases, and the shrinking and squeezing area of ​​the V-shaped trowel (670) increases, which can adapt to the roadbed with a large maintenance area. Step 5: During the movement of the equipment, the asphalt is initially flattened by the flattening roller (850) in the initial flattening assembly (800); Step 6: After maintenance, loosen the lever (630) and reset the equipment under the rebound force of the two first spring plates (620).

Images