A waterproof construction device and method

Abstract

The present application relates to the technical field of waterproof construction, and specifically discloses a waterproof construction device and method, which includes a machine body and a mounting plate arranged on the machine body, wherein the mounting plate is sequentially provided with: a scraping assembly for scraping the building surface and gathering the scraped impurities; a crushing mechanism for crushing and refining the scraped impurities; and a dust collecting mechanism for sucking and collecting fine materials and dust on the building surface. The present application has the effect of improving the cleaning efficiency of the building surface.

Description

Technical Field

[0001] The present application relates to the field of waterproof construction technology, and in particular to a waterproof construction device and method. Background Art

[0002] Building waterproofing is a measure taken from the building materials and structures to prevent water from penetrating into the building. In the current construction process of buildings such as prefabricated buildings and unit buildings, it is often necessary to waterproof the building roof, underground buildings, and the interior rooms and water storage structures that need waterproofing.

[0003] In the related art, when waterproofing the surface of a building, it is often necessary to clean the surface of the base first. When cleaning the surface of the base, it is currently often done manually by flattening the surface of the base with a small flat shovel, and then using a broom or vacuum cleaner to remove the dust or gravel on the surface of the base. This construction method is relatively cumbersome, and the overall cleaning efficiency of the base is low, resulting in a long construction period. Summary of the invention

[0004] In order to improve the cleaning efficiency of building surfaces, the present application provides a waterproof construction equipment and method.

[0005] In the first aspect, the present application provides a waterproof construction equipment, which adopts the following technical solution:

[0006] A waterproof construction equipment comprises a body and a mounting plate arranged on the body, wherein the mounting plate is provided with: a scraping assembly for scraping the building surface and gathering the scraped impurities; a crushing mechanism for crushing and refining the scraped impurities; and a dust suction mechanism for sucking and collecting fine materials and dust on the building surface in sequence in a direction away from the moving track of the body.

[0007] By adopting the above technical scheme, when cleaning the building surface of the prefabricated building, the staff moves the machine body to scrape the building surface through the scraping component on the machine body, so as to scrape and gather impurities such as free broken sand and gravel on the building surface, concrete protrusions protruding from the building surface, and concrete fragments compacted on the building surface, and then the scraped impurities are concentratedly crushed and refined by the crushing mechanism, and the fine materials and dust formed by the refinement of the impurities are sucked and collected by the dust suction mechanism, thereby realizing rapid cleaning of the building surface and greatly improving the cleaning efficiency of the building surface.

[0008] Optionally, the scraping assembly includes a central scraper fixed at intervals at the bottom of the mounting plate and two side scrapers, and the spacing between the two side scrapers gradually increases along the moving direction of the machine body; the central scraper is placed between the two side scrapers, and a material passing gap is left between the central scraper and the two side scrapers, and the end of the central scraper away from the crushing assembly is cone-shaped.

[0009] By adopting the above technical solution, during the movement of the machine body, the side scraping plate and the central scraping plate on it perform scraping operations on the building surface, enabling impurities to quickly separate from the building surface. Since the central scraping plate is in a conical head shape and the two side scraping plates are in a flared shape, the impurities scraped off by the side scraping plate / central scraping plate can be collected at the material passing gap along the surface of the side scraping plate / central scraping plate, facilitating the subsequent centralized processing of the crushed materials by the crushing mechanism.

[0010] Optionally, the crushing mechanism includes: a crushing head movably arranged between the two side scraping plates and the central scraping plate; a driving assembly arranged on the mounting plate for driving the crushing head to reciprocate in a direction close to or away from the side scraping plate so as to press and crush the impurities gathered between the two side scraping plates by the crushing head; and a shredding assembly arranged on the mounting plate for refining the crushed materials.

[0011] By adopting the above technical solution, when the scraping and leveling assembly allows the scraped impurities to flow through the material passing gap, the driving assembly drives the crushing head to reciprocally approach the side scraping plate, so as to squeeze and crush the impurities by the crushing head and the side scraping plate, and then the shredded materials are refined by the shredding assembly, enabling the shredded materials to form fine materials and dust, which is convenient for the subsequent dust collection mechanism to centrally collect the fine materials and dust.

[0012] Optionally, the driving assembly includes: a guiding ring slidably arranged on the mounting plate in a direction close to or away from the central scraping plate, and the crushing head is fixedly connected to the guiding ring; an incomplete gear rotatably arranged on the mounting plate, and the rotation axis of the incomplete gear is consistent with the height direction of the mounting plate; a driving member arranged on the mounting plate and used for driving the incomplete gear to rotate; a rack fixed to the inner wall of the guiding ring, the length direction of the rack is consistent with the sliding direction of the guiding ring, there are two racks arranged at intervals along the radial direction of the incomplete gear, and the two racks are alternately engaged with the incomplete gear one by one.

[0013] By adopting the above technical solution, during use, the driving member drives the incomplete gear to rotate, and then the rotating incomplete gear sequentially engages the two racks, so as to drive the guiding ring to reciprocate through the two racks, and drive the crushing head to intermittently press and crush the impurities at the side walls of the two side scraping plates.

[0014] Optionally, the shredding assembly includes a shredding shaft placed between the crushing head and the dust collection mechanism, one end of the shredding shaft is fixedly connected to the end face of the incomplete gear, and a plurality of shredding blades are fixedly arranged on the circumferential side of the shredding shaft.

[0015] By adopting the above technical solution, during the continuous forward movement of the machine body, the incomplete gear drives the guide ring to move, so as to realize the crushing of the crushed materials at the side scraper by the crushing head; at the same time, the incomplete gear also drives the stirring shaft to rotate, so that the stirring shaft drives the crushing blades to further refine the crushed materials after crushing, realizing the efficient crushing of impurities.

[0016] Optionally, on the side of the side scraper facing the crushing head, a plurality of mounting grooves are arranged at intervals in a high-low shape, and a blocking strip is slidably arranged in the mounting grooves on the side scraper. An elastic member for driving the blocking strip to slide out of the inner cavity of the mounting groove is arranged in the mounting groove. One end of the blocking strip away from the elastic member fits the surface of the crushing head, and an interception net for connecting impurities is formed among the plurality of blocking strips, the side scraper and the crushing head.

[0017] By adopting the above technical solution, the plurality of arranged blocking strips can intercept large pieces of crushed materials when the crushing head is away from the side scraper, allowing the fine crushed materials to flow through the gaps between the plurality of blocking strips to the stirring blades, thus realizing the screening of large and small crushed materials between the two side scrapers, so as to facilitate the full crushing of the crushed materials by the crushing head and improve the crushing rate of the crushed materials.

[0018] Optionally, the dust suction mechanism includes: a first suction nozzle fixed on the mounting plate, and the dust extraction port of the first suction nozzle faces the central scraper between the two side scrapers; an air extraction pipe erected on the mounting plate, and a plurality of second suction nozzles communicating with the air extraction pipe are arranged at intervals on the air extraction pipe, and the second suction nozzles face the building surface; an air extraction assembly arranged on the machine body for performing air extraction and dust filtration treatment on the first suction nozzle and the air extraction pipe.

[0019] By adopting the above technical solution, during the operation of the equipment, the air extraction assembly performs suction operation, so that the first suction nozzle centrally extracts and collects the crushed materials discharged by the crushing mechanism, and the plurality of second suction nozzles extract and collect the accumulated dust in the ground pits, thus realizing the rapid cleaning of the building surface.

[0020] Optionally, the air extraction pipe is rotatably connected to the mounting plate, and the rotation axis intersects with the movement track of the machine body. A lever is fixed on the air extraction pipe, and a touch head for pushing the lever is fixed on the guide ring.

[0021] By adopting the above technical solution, during the process that the guide ring reciprocates to drive the crushing head to crush impurities, the moving guide ring also intermittently pushes the lever through the touch head, so that the lever drives the air extraction pipe to swing, facilitating the multi-angle suction of the building surface by the second nozzles on the air extraction pipe, and realizing the efficient extraction and collection of dust in the irregular pits and gaps on the building surface.

[0022] Optionally, a lifting assembly for driving the mounting plate to move up and down is arranged on the machine body.

[0023] By adopting the above technical solution, the provided lifting component can adjust the scraping height of the scraping component on the building surface; when the equipment is not used for cleaning the building surface, the lifting component drives the mounting plate away from the ground to achieve the suspended protection of the scraping component.

[0024] In a second aspect, the present application provides a waterproof construction method, adopting the following technical solution:

[0025] A waterproof construction method includes the following steps:

[0026] Step 1: Push the machine body to scrape and break the impurities on the building surface through the scraping component on the machine body, and use the dust suction mechanism to suck and collect the impurities on the building surface to achieve the cleaning of the base surface;

[0027] Step 2: Apply multiple coats of waterproof coating on the building surface alternately in different directions to form a waterproof coating layer on the building surface;

[0028] Step 3: After multiple coats of waterproof coating are dried, apply a protective coating on the waterproof coating layer.

[0029] By adopting the above technical solution, during waterproof construction, the components on the machine body cooperate to break and collect the impurities on the building surface, reducing the labor construction cost and improving the cleaning efficiency; then through multiple waterproof coating constructions and protective layer constructions, full waterproof treatment of the building surface is achieved.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. During the construction process, the scraping component on the machine body scrapes the building surface to scrape and gather impurities such as free crushed stones, concrete protrusions protruding from the building surface layer, and concrete fragments caked on the building surface on the building surface, and then the crushing mechanism centrally crushes and refines the scraped impurities, and then the dust suction mechanism sucks and collects the fine materials and dust formed by the refinement of the impurities to achieve the rapid cleaning of the building surface;

[0032] 2. When the impurities scraped by the scraping component flow through the material passing gap, the driving component drives the crushing head to reciprocally approach the side scraper to squeeze and crush the intercepted large-size impurities through the crushing head and the side scraper, and then the stirring and crushing component refines the crushed materials to form fine materials and dust, achieving the efficient crushing treatment of the impurities;

[0033] 3. During the operation of the equipment, the rotating incomplete gear drives the guide ring to reciprocate through the rack. Then, the reciprocating guide ring drives the crushing head to intermittently press the impurities at the side wall of the two side scrapers, realizing the crushing of the impurities. At the same time, the guide ring also drives the suction pipe to swing, so that the second nozzle on the suction pipe performs multi-angle suction on the building surface. The rotating incomplete gear synchronously drives the crushing shaft to further refine the crushed impurities, realizing the coordinated progress of impurity crushing and suction. Brief Description of the Drawings

[0034] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0035] Figure 2 is the structural schematic diagram of the leveling component and the dust suction mechanism in the embodiment of the present application;

[0036] Figure 3 is the sectional structural schematic diagram showing the intercepting strip and the elastic member in the side scraper;

[0037] Figure 4 is the structural schematic diagram showing the driving component.

[0038] Reference Signs: 1, body; 11, driving wheel; 12, handrail; 2, mounting plate; 21, guide plate; 3, lifting component; 31, electric push rod; 4, leveling component; 41, central scraper; 42, side scraper; 421, mounting groove; 422, elastic member; 423, intercepting strip; 43, reinforcing plate; 51, crushing head; 52, driving component; 521, guide ring; 522, incomplete gear; 523, driving member; 524, rack; 525, sliding plate; 53, crushing component; 531, crushing shaft; 532, crushing blade; 61, first suction nozzle; 62, suction pipe; 63, air extraction component; 631, dust collection box; 632, first hose; 633, second hose; 64, lever; 65, torsion spring; 7, touch head. Detailed Description of the Embodiment

[0039] The following further elaborates on the present application in conjunction with the attached Figures 1-4 drawings for a more detailed description.

[0040] The embodiment of the present application discloses a waterproof construction equipment. Refer to Figure 1The waterproof construction equipment includes a body 1, and driving wheels 11 are rotatably arranged at the four corners of the bottom of the body 1, and a handrail 12 is arranged at the tail of the body 1. In order to clean the building surface, a rectangular plate-shaped mounting plate 2 is arranged at the bottom of the body 1, and a lifting component 3 for driving the mounting plate 2 to move up and down is arranged on the body 1. A scraping component 4, a crushing mechanism and a dust suction mechanism are arranged in sequence on the mounting plate 2 along the direction away from the forward track of the body 1 (or the length direction of the mounting plate 2). The scraping component 4 is used to scrape the building surface and gather the scraped impurities; the crushing mechanism is used to crush and refine the scraped impurities; the dust suction mechanism is used to absorb and collect fine materials and dust on the building surface.

[0041] Reference Figure 1 The lifting assembly 3 includes a plurality of linear power parts vertically fixed on the body 1. The linear power parts can be any one of a cylinder, a hydraulic cylinder or an electric push rod 31. In this embodiment, the electric push rod 31 is preferably used. The piston end of the electric push rod 31 passes through the body 1 and is fixedly connected to the mounting plate 2.

[0042] Reference Figure 1 and Figure 2 In this embodiment, the scraping assembly 4 includes a central scraper 41 fixed to the bottom of the mounting plate 2 and two side scrapers 42. The two side scrapers 42 are arranged at intervals along the width direction of the mounting plate 2, and the spacing between the two side scrapers 42 gradually increases along the straight forward moving direction of the machine body 1. The central scraper 41 is placed between the two side scrapers 42, and there is a material passing gap between the central scraper 41 and the two side scrapers 42. The end of the central scraper 41 away from the crushing assembly is in a cone shape.

[0043] In another embodiment, the scraping assembly 4 includes an inclined scraper fixedly mounted on the bottom of the mounting plate 2, and the length direction of the inclined scraper intersects with the length direction of the mounting plate 2; and the crushing assembly is arranged at one end of the inclined scraper inclined away from the head of the machine body 1, so that the crushing assembly can crush the material scraped off by the inclined scraper.

[0044] Reference Figure 2 and Figure 3 , in order to crush the impurities scraped out by the leveling component 4, so that the subsequent dust collection component can fully absorb and collect the crushed materials. The crushing mechanism includes a crushing head 51, a driving component 52 and a crushing component 53. The crushing head 51 is movably arranged between the scrapers 42 on both sides and the central scraper 41; the driving component 52 and the crushing component 53 are both arranged on the mounting plate 2, and the driving component 52 is used to drive the crushing head 51 to reciprocate in the direction of approaching or moving away from the side scrapers 42, so that the crushing head 51 can press and crush the impurities gathered between the scrapers 42 on both sides during the reciprocating movement. The crushing component 53 is used to crush and refine the crushed materials.

[0045] Reference Figure 2and Figure 4 The driving assembly 52 includes a guiding ring 521, an incomplete gear 522, and a rack 524. The guiding ring 521 is slidably disposed on the mounting plate 2 in a direction approaching or departing from the central scraper 41, and the crushing head 51 is fixedly connected to one end of the guiding ring 521. The incomplete gear 522 is rotatably disposed on the mounting plate 2, and the rotation axis of the incomplete gear 522 is consistent with the height direction of the mounting plate 2.

[0046] Referring to Figure 2 , a driving member 523 is disposed on the mounting plate 2. The driving member 523 can be any one of a DC motor, an asynchronous motor, and a synchronous motor, as long as the driving member 523 can realize the rotational driving of the incomplete gear 522.

[0047] Referring to Figure 4 , the rack 524 is fixed to the inner wall of the guiding ring 521. Two racks 524 are spaced apart along the radial direction of the incomplete gear 522, and the length direction of the rack 524 is consistent with the sliding direction of the guiding ring 521. The two racks 524 are alternately engaged with the incomplete gear 522 one by one.

[0048] Referring to Figure 4 , in order to realize the stable sliding of the guiding ring 521, in this embodiment, two guiding plates 21 are fixedly spaced on the mounting plate 2. The two guiding plates 21 are both L-shaped plates, and a T-shaped sliding space is formed between the two guiding plates 21. A sliding plate 525 is fixedly disposed on a set of opposite outer sidewalls of the guiding ring 521. The sliding plate 525 has a C-shaped cross-section, and the sliding plate 525 is slidably mounted on the guiding plate 21 along the linear advancing direction of the machine body 1.

[0049] In another embodiment, a sliding rail is fixedly disposed on the mounting plate 2, and the guiding ring 521 is slidably mounted on the sliding rail along the linear advancing direction of the machine body 1.

[0050] Referring to Figure 3 , in order to facilitate the crushing treatment of large pieces of crushed materials by the crushing head 51, a plurality of mounting grooves 421 are spaced apart in a high-low shape on one side surface of the side scraper 42 facing the crushing head 51. An intercepting bar 423 is slidably disposed in the mounting groove 421 on the side scraper 42, and an elastic member 422 for driving the intercepting bar 423 to slide out of the inner cavity of the mounting groove 421 is disposed in the mounting groove 421. The elastic member 422 can be any one of a spring, a spring piece, or an elastic rubber pad, etc. In this embodiment, the elastic member 422 is selected as a spring. One end of the intercepting bar 423 away from the elastic member 422 abuts against the rear end surface of the crushing head 51, and an intercepting net for intercepting uncrushed large particle impurities is formed among the plurality of intercepting bars 423, the side scraper 42, and the crushing head 51.

[0051] Referring to Figure 1 and Figure 3, to further crush and refine the crushed materials after the crushing head 51 crushes them, a bent reinforcing plate 43 is connected to one end of the two side scrapers 42 close to the armrest 12. A crushed material refining space is formed among the reinforcing plate 43, the two side scrapers 42 and the crushing head 51. The crushing and stirring assembly 53 includes a crushing and stirring shaft 531 placed in the crushed material refining space. The upper end of the crushing and stirring shaft 531 is fixedly connected to the end face of the incomplete gear 522, and a number of crushing and stirring blades 532 are fixedly arranged on the circumferential side of the crushing and stirring shaft 531.

[0052] Refer to Figure 1 , Figure 2 and Figure 4 , to collect the finely crushed materials after crushing and refining, and to deal with the dust accumulation in a small number of pits and gaps on the construction ground. The dust suction mechanism includes a first suction nozzle 61, an air extraction pipe 62 and an air extraction assembly 63. The first suction nozzle 61 is fixedly arranged on the reinforcing plate 43 in a penetrating manner, and the dust extraction port of the first suction nozzle 61 faces the central scraper 41 between the two side scrapers 42.

[0053] Refer to Figure 1 and Figure 2 , the air extraction pipe 62 is suspended on the mounting plate 2 through a suspension bracket. A number of second suction nozzles communicating with the air extraction pipe 62 are arranged at intervals on the air extraction pipe 62 in a direction perpendicular to the moving direction of the crushing head 51, and the second suction nozzles face the building surface. The air extraction assembly 63 is arranged on the machine body 1, and the air extraction assembly 63 is used for air extraction and dust filtration treatment of the first suction nozzle 61 and the air extraction pipe 62.

[0054] Refer to Figure 1 , the air extraction assembly 63 includes a dust collection box 631 fixed on the machine body 1, a first hose 632 connecting the dust collection box 631 and the first suction nozzle 61, and a second hose 633 connecting the dust collection box 631 and the air extraction pipe 62. A number of filter mesh plates for filtering and intercepting dust and impurities in the air are arranged in the dust collection box 631, and an air extraction pump (not shown in the figure) for discharging the clean air filtered by the filter mesh plates from the dust collection box 631 is arranged on the dust collection box 631.

[0055] Due to the complex structure of the ground pits and gaps, there are complex shape situations such as pits with a converging opening and inclined inner side walls of the gaps. To improve the suction performance of the equipment for the dust accumulation in complex pits and complex gaps. The air extraction pipe 62 is rotatably installed on the suspension bracket of the mounting plate 2 through a rotating shaft, and the rotation axis of the air extraction pipe 62 is perpendicular to the linear running track of the machine body 1 (i.e., the moving track of the crushing head 51). A lever 64 is fixedly arranged at the upper end of the air extraction pipe 62, and a touch head 7 for pushing the lever 64 is fixedly arranged on the guide ring 521. A torsion spring 65 is arranged between the air extraction pipe 62 and the mounting plate 2, and the torsion spring 65 drives the lever 64 on the air extraction pipe 62 to maintain a reset vertical state when not touched by the touch head 7.

[0056] The implementation principle of a waterproof construction device and method in an embodiment of this application is as follows: When performing waterproof construction on prefabricated buildings or unit buildings, the staff push the body 1 and start the driving member 523 and the air extraction assembly 63 to make the body 1 move forward. The leveling assembly 4 on the body 1 sweeps the building surface to sweep and gather impurities such as free crushed sand and gravel on the building surface, concrete protrusions protruding from the building surface layer, and concrete fragments caked on the building surface.

[0057] The running driving member 523 drives the incomplete gear 522 to rotate. The rotating incomplete gear 522 drives the guide ring 521 to reciprocate through the rack 524. Then, the reciprocating guide ring 521 drives the crushing head 51 to intermittently press the impurities on the side walls of the two scrapers 42, realizing the crushing of the impurities.

[0058] At the same time, the rotating incomplete gear 522 also synchronously drives the crushing shaft 531 to further refine the crushed impurities. Then, the running air extraction assembly 63 performs air extraction and dust filtration treatment on the first suction nozzle 61 and the suction pipe 62, so that the first suction nozzle 61 sucks the crushed and refined materials. The suction pipe 62 swings under the push of the contact head on the guide ring, so that the second spray head on the suction pipe 62 performs multi-angle suction on the building surface, thus realizing the coordinated progress of impurity crushing and suction.

[0059] An embodiment of this application also discloses a waterproof construction method. A waterproof construction method includes the following steps:

[0060] Step 1: Push the body to scrape and crush the impurities on the building surface through the leveling assembly on the body, and perform suction collection of the impurities on the building surface through the dust collection mechanism to achieve the cleaning of the base surface.

[0061] Step 2: Apply multiple coats of waterproof coating on the building surface alternately in different directions to form a waterproof coating layer on the building surface.

[0062] Step 3: After multiple coats of waterproof coating are dried, apply a protective coating on the waterproof coating layer.

[0063] The above are all preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A waterproof construction equipment, Features: It comprises a machine body (1) and a mounting plate (2) arranged on the machine body (1), wherein the mounting plate (2) is provided in sequence along a direction away from the moving track of the machine body (1): A scraping component (4) is used to scrape the building surface and gather the scraped impurities; Crushing mechanism, used to crush and refine the scraped impurities; Dust collection mechanism, used to collect fine materials and dust on the building surface; The scraping assembly (4) comprises a central scraper (41) fixed to the bottom of the mounting plate (2) and two side scrapers (42), wherein the distance between the two side scrapers (42) gradually increases along the moving direction of the machine body (1); The central scraper (41) is placed between the scrapers (42) on both sides, and a gap for passing materials is left between the central scraper (41) and the two side scrapers (42), and the end of the central scraper (41) away from the crushing assembly is in a cone shape; The crushing mechanism comprises: A crushing head (51) is movably arranged between the scrapers (42) on both sides and the central scraper (41); A driving assembly (52) is disposed on the mounting plate (2) and is used to drive the crushing head (51) to reciprocate in a direction approaching or moving away from the side scraper (42), so that the crushing head (51) presses and crushes impurities gathered between the scrapers (42) on both sides; The crushing assembly (53) is arranged on the mounting plate (2) and is used to refine the crushed fragments.

2. A waterproof construction equipment according to claim 1, Features: The driving assembly (52) comprises: A guide ring (521) is slidably arranged on the mounting plate (2) in a direction approaching or moving away from the central scraper (41), and the crushing head (51) is fixedly connected to the guide ring (521); An incomplete gear (522) is rotatably mounted on the mounting plate (2), wherein the rotation axis of the incomplete gear (522) is consistent with the height direction of the mounting plate (2); A driving member (523) is disposed on the mounting plate (2) and is used to drive the incomplete gear (522) to rotate; A rack (524) is fixed to the inner wall of the guide ring (521); the length direction of the rack (524) is consistent with the sliding direction of the guide ring (521); two racks (524) are arranged at intervals along the radial direction of the incomplete gear (522); and the two racks (524) are alternately meshed with the incomplete gear (522) one by one.

3. A waterproof construction equipment according to claim 2, Features: The crushing assembly (53) comprises a crushing shaft (531) disposed between the crushing head (51) and the dust collecting mechanism, one end of the crushing shaft (531) being fixedly connected to the end surface of the incomplete gear (522), and a plurality of crushing blades (532) being fixedly arranged on the circumference of the crushing shaft (531).

4. A waterproof construction equipment according to claim 1, Features: One side of the side scraper (42) facing the crushing head (51) is provided with a plurality of mounting grooves (421) at intervals in a high-low shape. An intercepting bar (423) is slidably arranged in the mounting groove (421) on the side scraper (42). An elastic member (422) for driving the intercepting bar (423) to slide out of the inner cavity of the mounting groove (421) is arranged in the mounting groove (421). One end of the intercepting bar (423) away from the elastic member (422) fits against the surface of the crushing head (51). A plurality of intercepting bars (423), the side scraper (42) and the crushing head (51) enclose an intercepting net for intercepting uncrushed impurities.

5. A waterproof construction device according to claim 2, characterized in that: The dust suction mechanism includes: A first suction nozzle (61) fixed to the mounting plate (2), and the dust extraction port of the first suction nozzle (61) faces the central scraper (41) between the two side scrapers (42); An air extraction pipe (62) is arranged on the mounting plate (2), and a plurality of second suction nozzles communicating with the air extraction pipe (62) are arranged at intervals on the air extraction pipe (62), and the second suction nozzles face the building surface; An air extraction assembly (63) is arranged on the machine body (1) for performing air extraction and dust filtration treatment on the first suction nozzle (61) and the air extraction pipe (62).

6. A waterproof construction device according to claim 5, characterized in that: The air extraction pipe (62) is rotatably connected to the mounting plate (2), and the rotation axis intersects with the movement track of the machine body (1). A dial rod (64) is fixed on the air extraction pipe (62), and a touch head (7) for pushing the dial rod (64) is fixed on the guide ring (521); A torsion spring (65) for driving the air extraction pipe (62) to reset is arranged between the air extraction pipe (62) and the mounting plate (2).

7. A waterproof construction device according to claim 1, characterized in that: A lifting assembly (3) for driving the mounting plate (2) to move up and down is arranged on the machine body (1).

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