Crack repair machine for road works
The multi-stage filtration system and scraper structure solve the problem of filter clogging, achieving efficient absorption of harmful gases and crack repair.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JINZHU TRANSPORTATION CONSTR
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-07
AI Technical Summary
The filters of existing crack repair machines are prone to clogging, and impurities falling off affect the filling effect, resulting in poor absorption of harmful gases.
A multi-stage filtration system was designed, including a second and third filter plate, a scraper and a fixed frame structure. Impurities are intercepted and removed by the scraper and the reciprocating filter plate, and harmful gases are absorbed by the activated carbon box.
It improves the absorption of harmful gases, reduces the impact of impurities on the sealant, and ensures the quality and efficiency of crack repair.
Smart Images

Figure CN224468202U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway repair technology, and in particular to a crack repair machine for highway engineering. Background Technology
[0002] Highways usually refer to asphalt roads. Asphalt roads are various types of pavement constructed by mixing road asphalt materials with mineral materials. After highways are put into use, due to continuous pressure over the years and lack of maintenance, asphalt pavement often develops cracks after long-term use. In order to prevent cracks from spreading further with the erosion of rainwater and the increase of vehicle load, crack repair devices are usually used to repair the cracks in a timely manner.
[0003] A search revealed that the Chinese patent "Crack Repair Machine for Highway Engineering" (authorization announcement number "CN 220643803 U") utilizes a negative pressure fan to absorb harmful gases generated by the newly laid material through a filter screen inside a square box when filling cracks. The filter screen can also filter and intercept branches or stones on the road. The absorbed harmful gases are then discharged from the outlet through the activated carbon in the filter box via the air supply pipe, thus completing the filtration of harmful gases, reducing air pollution during construction, and minimizing harm to the health of construction workers.
[0004] Although the aforementioned application can absorb and filter harmful gases generated during repairs, the large amount of dust and impurities on the road surface can easily clog the filter screen during the interception process, affecting the absorption effect of harmful gases. Furthermore, some impurities may fall onto the crack filling material under their own weight during the filtration process, thus affecting the filling effect of the cracks. Utility Model Content
[0005] Therefore, it is necessary to provide a crack repair machine for highway engineering to address the problems that a large number of impurities can easily cause filter clogging, affecting the absorption of harmful gases, and that some impurities may fall onto the crack filling material under their own weight during the filtration process, thus affecting the filling effect of cracks.
[0006] Includes: a mobile frame, the top of which is provided with a repair mechanism;
[0007] The filtration mechanism includes an activated carbon box mounted on a movable frame, a fan mounted at the bottom of the activated carbon box, an arc-shaped plate fixedly connected to one side of the movable frame, a fixed box fixedly connected to the outer surface of the arc-shaped plate, a first filter plate slidably connected to the inner wall of the fixed box, a connecting pipe connecting the top of the fixed box to the air inlet of the fan, multiple suction pipes connected to one side of the fixed box, the end of the suction pipe away from the fixed box passing through the arc-shaped plate and fixedly connected to a second filter plate, and a receiving frame mounted on the lower end of the inner surface of the arc-shaped plate.
[0008] In one embodiment, the filtration mechanism further includes a mounting rod slidably connected to the inner wall of a fixed box. A fixed frame is mounted on the top of the mounting rod, and multiple evenly distributed scrapers are fixedly connected to the inner wall of the fixed frame. The tops of the scrapers contact the bottom of the first filter plate, and multiple evenly distributed third filter plates are fixedly connected to the bottom of the fixed frame. The overall shape of the third filter plates is ridge-shaped. The multiple third filter plates help to intercept some impurities in the gas, reducing the impurity content filtered by the first filter plate.
[0009] In one embodiment, a motor is fixedly connected to the side of the fixed box away from the arc-shaped plate. The output shaft of the motor passes through the fixed box and is fixedly connected to a reciprocating lead screw. A slider is mounted on the surface of the reciprocating lead screw, and the top end of the slider is fixedly connected to the bottom end of the mounting rod. This facilitates driving the fixed frame to move multiple scrapers and multiple third filter plates reciprocally in the horizontal direction.
[0010] In one embodiment, the mesh diameter of the second filter plate is larger than that of the first filter plate, and the mesh diameter of the third filter plate is the same as that of the first filter plate. This facilitates multi-stage filtration of the inhaled gas.
[0011] In one embodiment, the surface of the receiving frame is curved into an arc shape, and the receiving frame is installed to the arc-shaped plate by bolts. This ensures that the receiving frame can receive larger impurities while reducing the resistance of the receiving frame to gas flow.
[0012] In one embodiment, the top two sides of the scraper form an angle with the vertical plane. This ensures the scraper effectively removes impurities from the bottom of the first filter plate while reducing the friction between the top of the scraper and the bottom of the first filter plate.
[0013] In one embodiment, a sliding rod is fixedly connected to one side of the bottom of the fixed frame. The surface of the sliding rod is slidably connected to the inner wall of the mounting rod, and the vertical cross-section of the sliding rod is convex. This ensures the stability of the fixed frame when the mounting rod drives it to reciprocate.
[0014] In one embodiment, the suction pipe is angled, and the end of the suction pipe away from the fixed box has a funnel-shaped opening. This facilitates better absorption of harmful gases from the discharged sealant. Beneficial effects
[0015] 1. In the above-mentioned filtration mechanism, when harmful gases in the discharged sealant are drawn in, filtered, and purified, larger impurities in the drawn-in gas are intercepted by the second filter plate, and larger impurities are collected by the receiving frame to prevent impurities from falling onto the sealant and affecting the crack filling effect. Multiple third filter plates help to intercept some impurities in the gas, reducing the impurity content of the gas filtered by the first filter plate. By driving multiple scrapers and multiple third filter plates to move back and forth, the scrapers can continuously scrape the impurities attached to the bottom of the first filter plate, ensuring the normal ventilation operation of the first filter plate. During the reciprocating movement of multiple third filter plates, the gas will continuously blow away the impurities trapped inside the third filter plates, ensuring the normal ventilation operation of the third filter plates and improving the absorption effect of the device on harmful gases during operation.
[0016] 2. Setting the third filter plate in a ridge shape helps to better retain the impurities filtered by the third filter plate on the inner side of the third filter plate during its reciprocating movement. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[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 filter mechanism structure of this utility model;
[0020] Figure 3 This is a sectional view of the fixing box of this utility model;
[0021] Figure 4 This is an exploded view of the first filter plate, the fixing frame, and the third filter plate of this utility model;
[0022] Figure 5 This is a schematic diagram of the mounting rod installation structure of this utility model.
[0023] Figure label:
[0024] 100. Movable frame; 200. Repair mechanism; 300. Filtration mechanism; 310. Activated carbon box; 311. Fan; 320. Arc plate; 330. Fixed box; 331. First filter plate; 332. Connecting pipe; 333. Suction pipe; 334. Second filter plate; 340. Receiving frame; 350. Mounting rod; 360. Fixed frame; 361. Scraper; 362. Third filter plate; 363. Slide rod; 370. Motor; 371. Reciprocating screw; 372. Slider. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0030] The following is combined Figures 1-5 This invention describes a crack repair machine for highway engineering.
[0031] In one embodiment, a crack repair machine for highway engineering includes: a mobile frame 100, with a repair mechanism 200 disposed at the top of the mobile frame 100;
[0032] The filtration mechanism 300 includes an activated carbon box 310 mounted on a movable frame 100. A fan 311 is installed at the bottom of the activated carbon box 310. An arc-shaped plate 320 is fixedly connected to one side of the movable frame 100. A fixed box 330 is fixedly connected to the outer surface of the arc-shaped plate 320. A first filter plate 331 is slidably connected to the inner wall of the fixed box 330. A connecting pipe 332 connects the top of the fixed box 330 to the air inlet of the fan 311. Multiple suction pipes 333 are connected to one side of the fixed box 330. The end of the suction pipe 333 away from the fixed box 330 passes through the arc-shaped plate 320 and is fixedly connected to a second filter plate 334. A receiving frame 340 is installed at the lower end of the inner surface of the arc-shaped plate 320. The activated carbon box 310 is filled with activated carbon.
[0033] It should be noted that the repair mechanism 200 includes: a material bin for storing the crack filling material; an engine as the power source for the crack filling machine; a transmission device to transmit the engine's power to various working parts; a heating device to heat the crack filling material, such as asphalt or sealant, to bring it to a suitable construction temperature; a delivery pump to deliver the crack filling material from the material bin to the discharge pipe; a piping system connecting the material bin, delivery pump, and discharge pipe to ensure the crack filling material can flow smoothly inside the equipment; and a discharge pipe with a discharge nozzle at its end.
[0034] When repairing cracks using the repair mechanism 200, the sealant in the hopper is heated to a suitable temperature and then the heated sealant is delivered to the discharge pipe using a delivery pump and injected into the crack through the discharge nozzle. After the sealant cools and solidifies in the crack, it fills the crack and acts as a sealant.
[0035] The operating principle of the repair mechanism 200 is based on existing known technology and is a known crack repair device. The technical solution of this application is aimed at the problem of adsorbing and purifying harmful gases during crack repair. Therefore, the internal structure of the repair mechanism 200 is not labeled or described in detail. The repair mechanism 200 is drawn with reference to existing crack repair equipment.
[0036] In this embodiment, the air inlet of the fan 311 is connected to the bottom of the activated carbon box 310, and the top of the activated carbon box 310 is connected to the air outlet pipe.
[0037] The overall shape of the arc plate 320 is a half-circle ring. There is a certain gap between the bottom of the arc plate 320 and the ground, which does not affect the normal movement of the device.
[0038] like Figure 3 , Figure 4 and Figure 5 As shown, the filtration mechanism 300 also includes a mounting rod 350 slidably connected to the inner wall of the fixed box 330. A fixed frame 360 is mounted on the top of the mounting rod 350. A plurality of evenly distributed scrapers 361 are fixedly connected to the inner wall of the fixed frame 360. The top of the scrapers 361 contacts the bottom of the first filter plate 331. A plurality of evenly distributed third filter plates 362 are fixedly connected to the bottom of the fixed frame 360. The overall shape of the third filter plates 362 is ridge-shaped. A sliding rod 363 is fixedly connected to one side of the bottom of the fixed frame 360. The surface of the sliding rod 363 is slidably connected to the inner wall of the mounting rod 350, and the vertical cross-section of the sliding rod 363 is convex.
[0039] In this embodiment, the top end of the mounting rod 350 is provided with a sliding groove that matches the sliding rod 363. After the sliding rod 363 and the mounting rod 350 are installed, the top end of the scraper 361 contacts the bottom end of the first filter plate 331, and one end of the mounting rod 350 is slidably connected to the inner wall of the fixed box 330, thereby continuing to limit the movement path of the mounting rod 350.
[0040] One end of the fixed box 330 is provided with a detachable cover plate. When the cover plate is installed with the fixed box 330, the two ends of the first filter plate 331 and the two ends of the fixed frame 360 contact one side of the cover plate and one side of the inner wall of the fixed box 330, respectively, thereby limiting the first filter plate 331 and preventing the fixed frame 360 from moving longitudinally.
[0041] like Figure 3 and Figure 5 As shown, a motor 370 is fixedly connected to the side of the fixed box 330 away from the arc plate 320. The output shaft of the motor 370 passes through the fixed box 330 and is fixedly connected to a reciprocating screw 371. A slider 372 is installed on the surface of the reciprocating screw 371. The top end of the slider 372 is fixedly connected to the bottom end of the mounting rod 350.
[0042] In this embodiment, after the slide bar 363 and the mounting rod 350 are installed, the motor 370 is started by the controller. The output shaft of the motor 370 drives the reciprocating screw 371 to rotate, thereby driving the slider 372 to drive the mounting rod 350, the slide bar 363 and the fixed frame 360 to reciprocate synchronously.
[0043] like Figure 2 and Figure 4 As shown, the mesh diameter of the second filter plate 334 is larger than that of the first filter plate 331, and the mesh diameter of the third filter plate 362 is the same as that of the first filter plate 331.
[0044] In this embodiment, when the device is running, the second filter plate 334 performs preliminary filtration on the intake air and intercepts larger impurities in the intake air.
[0045] like Figure 3 As shown, the surface of the receiving frame 340 is curved into an arc shape, and the receiving frame 340 is installed with the arc plate 320 by bolts.
[0046] In this embodiment, when it is necessary to clean the impurities inside the receiving frame 340, the receiving frame 340 can be unmounted from the arc plate 320 by means of bolts, and then the impurities can be cleaned.
[0047] like Figure 4 As shown, the top two sides of the scraper 361 form an angle with the vertical plane. This reduces the contact area between the scraper 361 and the first filter plate 331.
[0048] like Figure 2 As shown, the suction pipe 333 is inclined, and the end of the suction pipe 333 away from the fixed box 330 has a funnel-shaped opening.
[0049] In this embodiment, the second filter plate 334 is inclined, and the center point of the receiving frame 340 and the center point of the second filter plate 334 are located on the same vertical plane. Therefore, when larger impurities are intercepted and fall off by the second filter plate 334, they will enter the receiving frame 340.
[0050] Working Principle: The device is moved to the required position, and the repair mechanism 200 is moved along the crack trajectory by the moving frame 100 to carry out the repair work. At the same time, the fan 311 in the filter mechanism 300 is started synchronously by the controller. At this time, under the action of the connecting pipe 332, multiple suction pipes 333 draw in external air, thereby drawing in harmful gases from the filler material discharged from the outlet and external air. During the suction process, the second filter plate 334 intercepts larger impurities in the suction air, and they fall into the receiving frame 340 under the action of the inclined surface of the second filter plate 334 and the weight of the impurities themselves. After preliminary filtration, the air enters the fixed box 330. At this time, some of the air will first pass through multiple third filter plates 362, which intercept some impurities in the gas. The suction air passes through multiple... After filtration by the third filter plate 362 and the first filter plate 331, the gas enters the activated carbon box 310 through the fan 311. The activated carbon absorbs and purifies the harmful substances in the gas, and then discharges the purified gas. During this process, the controller starts the motor 370, which, under the action of the reciprocating screw 371, slider 372, mounting rod 350 and slide rod 363, drives the fixed frame 360 to reciprocate. This, in turn, drives multiple scrapers 361 and multiple third filter plates 362 to reciprocate. During the movement, the scrapers 361 scrape the impurities attached to the bottom of the first filter plate 331, thus maintaining normal ventilation of the first filter plate 331. At the same time, during the movement of the multiple third filter plates 362, the gas entering the fixed box 330 continuously blows away the impurities trapped inside the third filter plates 362, thus ensuring the ventilation operation of the third filter plates 362.
[0051] When it is necessary to clean the first filter plate 331 and the multiple third filter plates 362 regularly, simply remove the cover plate from one end of the fixing box 330 and remove the first filter plate 331 and the fixing frame 360 from the fixing box 330 horizontally to perform cleaning.
[0052] Note: An L-shaped rod is fixedly connected to the inner side of the fixed box 330. The end of the reciprocating screw 371 away from the rotating shaft of the motor 370 is rotatably connected to one side of the L-shaped rod. Corrugated covers are fixedly connected to both sides of the slider 372. The ends of the two corrugated covers away from the slider 372 are fixedly connected to one side of the L-shaped rod and one side of the inner side of the fixed box 330, respectively. The corrugated covers are rubber components. The reciprocating screw 371 is located inside the corrugated covers. When the device is running, the reciprocating screw 371 is protected by the corrugated covers.
[0053] The reciprocating screw 371 is represented by two threaded grooves with the same pitch and opposite directions, connected at both ends by a transition curve. The rotation of the reciprocating screw 371 causes the side of the spiral groove to push the moving block placed in the spiral groove to make axial reciprocating motion. Therefore, when the reciprocating screw 371 rotates, it will drive the slider 372 to reciprocate in the horizontal direction.
[0054] It should be noted that the fan 311 and motor 370 mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the fan 311 and motor 370 can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.
[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0056] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A crack repair machine for highway engineering, characterized in that, include: A mobile frame (100) is provided with a repair mechanism (200) at its top. The filtration mechanism (300) includes an activated carbon box (310) mounted on a movable frame (100). A fan (311) is installed at the bottom of the activated carbon box (310). An arc plate (320) is fixedly connected to one side of the movable frame (100). A fixed box (330) is fixedly connected to the outer surface of the arc plate (320). A first filter plate (331) is slidably connected to the inner wall of the fixed box (330). A connecting pipe (332) is connected between the top of the fixed box (330) and the air inlet of the fan (311). A plurality of suction pipes (333) are connected to one side of the fixed box (330). The end of the suction pipe (333) away from the fixed box (330) passes through the arc plate (320) and is fixedly connected to a second filter plate (334). A receiving frame (340) is installed at the lower end of the inner surface of the arc plate (320).
2. The crack repair machine for highway engineering according to claim 1, characterized in that, The filtration mechanism (300) further includes an installation rod (350) slidably connected to the inner wall of the fixed box (330). A fixed frame (360) is installed at the top of the installation rod (350). A plurality of evenly distributed scrapers (361) are fixedly connected to the inner wall of the fixed frame (360). The top of the scraper (361) contacts the bottom of the first filter plate (331). A plurality of evenly distributed third filter plates (362) are fixedly connected to the bottom of the fixed frame (360). The overall shape of the third filter plate (362) is ridge-shaped.
3. The crack repair machine for highway engineering according to claim 1, characterized in that, A motor (370) is fixedly connected to the side of the fixed box (330) away from the arc plate (320). The output shaft of the motor (370) passes through the fixed box (330) and is fixedly connected to a reciprocating screw (371). A slider (372) is installed on the surface of the reciprocating screw (371). The top end of the slider (372) is fixedly connected to the bottom end of the mounting rod (350).
4. The crack repair machine for highway engineering according to claim 2, characterized in that, The mesh diameter of the second filter plate (334) is larger than that of the first filter plate (331), and the mesh diameter of the third filter plate (362) is the same as that of the first filter plate (331).
5. The crack repair machine for highway engineering according to claim 1, characterized in that, The surface of the receiving frame (340) is curved into an arc shape, and the receiving frame (340) is installed with the arc plate (320) by bolts.
6. The crack repair machine for highway engineering according to claim 2, characterized in that, The top two sides of the scraper (361) form an angle with the vertical plane.
7. The crack repair machine for highway engineering according to claim 2, characterized in that, A sliding rod (363) is fixedly connected to one side of the bottom end of the fixed frame (360). The surface of the sliding rod (363) is slidably connected to the inner wall of the mounting rod (350), and the vertical cross section of the sliding rod (363) is "convex".
8. The crack repair machine for highway engineering according to claim 1, characterized in that, The suction pipe (333) is inclined, and the end of the suction pipe (333) away from the fixed box (330) has a flared opening.