Dustproof device for constructional engineering

Abstract

The utility model discloses a dust-proof device for constructional engineering, which belongs to the technical field of dust prevention of constructional engineering and comprises a bottom plate for mounting a cutting device, and the cutting device comprises a motor, a cutting knife and a rotating shaft II connected with the output end of the motor and the cutting knife. A protective shell used for containing the cutting knife and an outer shell used for containing the motor are installed on the bottom plate, the protective shell is communicated with the outer shell, a filtering device is further arranged on the bottom plate, and a connecting pipe communicated with an inner cavity of the protective shell is connected to the filtering device so that air in the protective shell can be sucked into the filtering device. The dust removal device has the advantage of being convenient to move and remove dust.

Description

Technical Field

[0001] The utility model relates to the technical field of dust prevention in construction engineering, in particular to a dust prevention device for construction engineering. Background Art

[0002] Construction engineering refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. Among them, housing buildings refer to projects with roofs, beams, columns, walls, foundations, and internal spaces that can meet people's needs for production, living, learning, and public activities.

[0003] In the process of existing construction projects, construction workers often need to use handheld cutting machines to make grooves and cut on building walls. The cutting machines will generate a lot of dust in the process of cutting. Under the impact of the cutting machines, the dust will quickly spread around the cutting position. Construction workers will inhale the dust during work, which will have a certain impact on their health. Therefore, in the process of construction, there are often fixed dust prevention devices, which can generally only deal with dust in a certain area. The dust removal effect is not good for construction over a long distance, and the dust prevention device is large in size and not easy to move, which makes the device inconvenient to use.

[0004] Chinese patent document CN216935220U3 discloses a dust prevention device for construction engineering, including a water tank, a dust suction pipe is installed on the water tank through a bearing, a guide fan is fixedly connected to the inside of the dust suction pipe, a forward and reverse motor is fixedly connected to the water tank, the output shaft of the forward and reverse motor is fixedly connected to a spur gear, the outer side of the dust suction pipe is fixedly connected to an outer gear ring, the lower end of the water tank is fixedly connected to a moving box, the inside of the moving box is slidably connected to a lifting plate, a tension spring is arranged on the lifting plate, and a universal wheel is installed on the lifting plate. The above device is equipped with structures such as a water tank, an expansion cover and a forward and reverse motor. During use, the air with dust can be sucked into the water inside the water tank through the guide fan, and the dust can be adsorbed by the water. After adsorption, the water can be directly replaced, thereby avoiding the need to clean the filter device. However, the above patent document still has the following defects during use:

[0005] During use, the above patent document moves the device to a designated area where dust removal is required. During the construction process, since the device cannot be close to the construction location where dust is generated, a large amount of dust still flies to areas outside the device and cannot be collected. Especially in the process of continuous moving construction, the device is not convenient for moving dust removal. Utility Model Content

[0006] The utility model provides a dustproof device for construction engineering to solve the problem of inconvenient mobile dust removal.

[0007] According to one aspect of the utility model, a dustproof device for construction engineering is provided, comprising a base plate for installing a cutting device, the cutting device comprising a motor, a cutting knife and a rotating shaft connecting the output end of the motor and the cutting knife, a protective shell for accommodating the cutting knife and an outer shell for accommodating the motor are installed on the base plate, the protective shell and the outer shell are connected, and a filtering device is also provided on the base plate, the filtering device is connected to a connecting pipe connected to the inner cavity of the protective shell, so as to suck the air in the protective shell into the filtering device.

[0008] Optionally, the filtering device includes a shell cover, a ventilation pipe connected to the connecting pipe is connected to the shell cover, and a fan and a filter plate are arranged in the ventilation pipe.

[0009] Optionally, a scraping assembly for scraping dust off the surface of the filter plate is disposed in the shell cover, and the scraping assembly includes a scraper disposed close to the surface of the filter plate and a driving member for driving the scraper to reciprocate along the surface of the filter plate.

[0010] Optionally, the driving member includes a spring and a cam, the cam is fixedly connected to a rotating shaft 1, and the rotating shaft 1 is connected to a rotating shaft 2 through a transmission device, and a guide rod cooperating with the cam is provided on the scraper; the guide rod is slidably penetrated on the ventilation pipe along the length direction to push the scraper away from the cam under the drive of the cam; one end of the spring is connected to the scraper and the other end is connected to the ventilation pipe to drive the scraper to reset.

[0011] Optionally, the transmission device includes pulleys respectively arranged on the first rotating shaft and the second rotating shaft, and a belt is tensioned between the two pulleys.

[0012] Optionally, a connecting shell for accommodating a transmission device is provided between the shell cover and the shell.

[0013] Optionally, the scraper, spring and guide rod are symmetrically arranged on both sides of the filter plate to clean both sides of the filter plate at the same time, and the two guide rods cooperate with the same cam.

[0014] Optionally, a collecting assembly is disposed in the shell cover, the collecting assembly includes a collecting shell, the collecting shell is provided with an inclined groove corresponding to the position of the scraper, the inclined groove penetrates the collecting shell, extends to the inside of the collecting shell and is connected with the inner cavity of the collecting shell.

[0015] Optionally, the collecting shell is slidably connected to the shell cover and the ventilation pipe, and a connecting plate is connected to the collecting shell. The connecting plate passes through the shell cover and extends to the outside of the shell cover and is connected to a baffle.

[0016] Optionally, one end of the collecting shell away from the baffle is rotatably connected to a rotary cover, and the inner cavity of the collecting shell is opened and closed by rotating the rotary cover.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] The utility model arranges the filtering device at the upper end of the bottom plate and connects it with the protective shell, and directly sucks and filters the dust generated by the cutting in the process of cutting with the cutting knife. The filtering device is close to the construction position where the dust is generated, and directly performs dust removal, so as to prevent a large amount of dust from flying to the area outside the device and being unable to be collected. When the cutting device moves, the filtering device will also move accordingly, so as to achieve the purpose of sucking and processing the dust while cutting, and realize the purpose of mobile dust removal.

[0019] The utility model discloses a device for using, utilizes the driving force of cutting knife to drive rotation, realizes downward squeezing of two guide rods, can realize downward movement of scraper, thereby scrapes off dust on the surface of spring during dust filtering, avoids the through holes on the surface of filter plate being clogged by dust due to long-term use, affects the efficiency of dust treatment, when away from guide rod, the position of spring can be reset under the action of spring, thereby realizes repeated up and down movement of scraper, continuously scrapes off dust on the surface of filter plate, realizes linkage, reduces power source, and reduces device cost.

[0020] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic cutaway diagram of the overall structure of the utility model;

[0024] Figure 3 It is a schematic cross-sectional view of the overall structure of the filter device of the utility model;

[0025] Figure 4 For the utility model Figure 3 The enlarged schematic diagram at A in the middle;

[0026] Figure 5 It is a schematic cross-sectional view of the overall structure of the collection component of the present invention.

[0027] Legend:

[0028] 1. Protective shell; 2. Bottom plate; 3. Filter device; 4. Collecting assembly; 5. Cutting knife; 6. Outer shell; 7. Handle; 8. Connecting pipe; 31. Shell cover; 32. Rotating shaft 1; 33. Ventilation pipe; 34. Scraping assembly; 35. Fan; 51. Rotating shaft 2; 321. Cam; 341. Guide rod; 342. Scraper; 343. Spring; 344. Filter plate; 41. Baffle; 42. Connecting plate; 43. Inclined groove; 44. Collecting shell; 45. Rotating cover. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] The embodiment of the present application discloses a dust prevention device for construction engineering.

[0032] Reference Figure 1 The dustproof device for construction engineering includes a base plate 2 for installing a cutting device, the cutting device includes a motor, a cutting knife 5 and a rotating shaft 51 connecting the output end of the motor and the cutting knife 5, a protective shell 1 for accommodating the cutting knife 5 and a shell 6 for accommodating the motor are installed on the base plate 2, the protective shell 1 and the shell 6 are connected, and a filtering device 3 is also provided on the base plate 2, and a connecting pipe 8 connected to the inner cavity of the protective shell 1 is connected to the filtering device 3 to suck the air in the protective shell 1 into the filtering device 3.

[0033] During the specific implementation of the utility model, the device is placed on the surface of the object to be cut, and then the motor is started to drive the cutting knife 5 to rotate and start cutting the object, and then the filtering device 3 is started. During the cutting process, the dust generated by the cutting knife 5 is sucked into the filtering device 3 for filtering treatment by using the filtering device 3, and the filtered air is then discharged to the outside. During the treatment process, the dust filtering component inside the filtering device 3 is continuously treated to avoid clogging of the through holes on the filter plate 344 affecting the filtering efficiency. During the cutting process of the mobile device, the dust can also be treated while achieving the purpose of mobile dust removal.

[0034] Reference Figure 2Specifically, the filtering device 3 includes a shell cover 31, a vent pipe 33 connected to the connecting pipe 8 is connected to the shell cover 31, and a fan 35 and a filter plate 344 are arranged in the vent pipe 33. When the cutting work is in progress, the dust and air generated by the cutting are sucked into the protective shell 1 and transmitted to the vent pipe 33 in the shell cover 31 through the connecting pipe 8. The suction force of the fan 35 ensures that the air and dust can flow continuously, thereby improving the filtering efficiency. The filter plate 344 intercepts dust particles and only allows clean air to pass through, and finally is discharged to the outside of the device through the vent pipe 33, thereby keeping the air at the construction site clean.

[0035] Reference Figure 3 and Figure 4 Furthermore, a scraping assembly 34 for scraping dust off the surface of the filter plate 344 is disposed in the shell cover 31. The scraping assembly 34 includes a scraper 342 disposed close to the surface of the filter plate 344 and a driving member that drives the scraper 342 to reciprocate along the surface of the filter plate 344. During operation, the driving member—usually including a cam 321 or a similar mechanical mechanism controlled by a motor—pushes the scraper 342 to move back and forth on the filter plate 344. This reciprocating action enables the scraper 342 to effectively scrape off adhered dust and particles from the surface of the filter plate 344, preventing the filter holes from being blocked, thereby maintaining the filtration efficiency and air flow. The purpose of this design is to ensure that the filtration system can continue to operate without performance degradation due to dust accumulation, especially in high dust environments. It helps extend the service life of the filter and reduces the maintenance requirements caused by reduced filtration efficiency.

[0036] Specifically, the driving member includes a spring 343 and a cam 321. The cam 321 is fixedly connected to the rotating shaft 32. The rotating shaft 32 is connected to the rotating shaft 2 51 through a transmission device. The scraper 342 is provided with a guide rod 341 that cooperates with the cam 321. The guide rod 341 is slidably penetrated on the ventilation pipe 33 along the length direction to push the scraper 342 away from the cam 321 under the drive of the cam 321. One end of the spring 343 is connected to the scraper 342 and the other end is connected to the ventilation pipe 33 to drive the scraper 342 to reset. When the motor is started, it can drive the rotating shaft 2 51 to rotate accordingly, and under the action of the transmission device, it can drive the rotating shaft 1 32 to rotate, which can drive the cam 321 to rotate. When the extended part of the cam 321 contacts the connecting block on the upper part of the two guide rods 341, the two guide rods 341 are squeezed and move downward, which can push the scrapers 342 on the front and rear sides to slide downward, and the dust on the surface of the filter plate 344 can be scraped off. At this time, a number of springs 343 are stretched, and when the extended part of the cam 321 is away from the guide rod 341, the connecting blocks on the upper ends of the two guide rods 341 are no longer subjected to the squeezing force, and rebound and reset under the action of a number of springs 343, driving the two scrapers 342 to reset together, waiting for the next downward movement, and thus repeatedly moving up and down to scrape off the dust on the surface of the filter plate 344, thereby avoiding clogging of the through holes on the surface of the filter plate 344 after long-term use, which affects the dust filtering and the dust treatment effect.

[0037] Furthermore, the scraper 342, the spring 343 and the guide rod 341 are symmetrically arranged on both sides of the filter plate 344 to clean both sides of the filter plate 344 at the same time, and the two guide rods 341 cooperate with the same cam 321. By symmetrically arranging the scraper 342, both sides of the filter plate 344 can be cleaned at the same time, which not only improves the cleaning efficiency, but also ensures uniform cleaning of both sides of the filter plate 344, avoiding low filtering efficiency on one side and affecting the overall air circulation and dust filtering effect.

[0038] The transmission device includes pulleys respectively arranged on the rotating shaft 1 32 and the rotating shaft 2 51, and a belt is arranged between the two pulleys. This transmission mode allows the rotation energy of the motor to be efficiently converted into the action of the cam 321, and then the scraper 342 is pushed to move back and forth on the filter plate 344 through the guide rod 341 connected to the cam 321. The main function of this arrangement is to ensure that the scraping mechanism in the filter device 3 can work stably and continuously.

[0039] In a specific embodiment, the diameter of the pulley located at the front is much larger than the diameter of the pulley located at the rear, and the transmission belt wraps the two pulleys together. The pulley with a larger diameter is fixedly connected to the rotating shaft 1 32, and the pulley with a smaller diameter is fixedly connected to the rotating shaft 2 51. In order to achieve rapid rotation of the cutting knife 5, the rotation speed of the cam 321 is slower than the rotation speed of the cutting knife 5.

[0040] Further, a connection shell for accommodating the transmission device is provided between the shell cover 31 and the shell 6. The connection shell provides a protective space for installing and fixing the transmission belt and the pulley, which protects the transmission device from external factors such as dust, water and other substances that may interfere with the normal operation of the device.

[0041] Reference Figure 5 In order to collect dust, a collection assembly 4 is arranged in the shell cover 31. The collection assembly 4 includes a collection shell 44. The collection shell 44 is provided with an inclined groove 43 corresponding to the position of the scraper 342. The inclined groove 43 penetrates the collection shell 44 and extends to the inside of the collection shell 44 and communicates with the inner cavity of the collection shell 44. The inclined groove 43 in the collection shell 44 corresponds to the position of the scraper 342, ensuring that the dust scraped from the filter plate 344 can be directly guided into the inclined groove 43. These inclined grooves 43 are designed to start from the scraper 342, extend into the inside of the collection shell 44, and be connected to the inner cavity of the collection shell 44, so that the dust slides into the collection shell 44 along the inclined groove 43 under the action of gravity and dynamic force. The main function of this design is to improve the localization and concentration of dust collection, reduce the dispersion of dust inside the equipment, thereby improving the filtering efficiency and maintenance convenience.

[0042] The collecting shell 44 is slidably connected to the shell cover 31 and the vent pipe 33. A connecting plate 42 is connected to the collecting shell. The connecting plate passes through the shell cover 31 and extends to the outside of the shell cover 31 and is connected to the baffle 41. The end of the collecting shell 44 away from the baffle 41 is rotatably connected to the rotating cover 45. The inner cavity of the collecting shell 44 is opened and closed by rotating the rotating cover 45. Further, referring to the figure, the two collecting shells 44 are slidably connected to the shell cover 31 and the vent pipe 33, and the two inclined grooves 43 correspond to the positions of the scrapers 342 on the same side;

[0043] It can be seen from this that when the two scrapers 342 scrape the dust on the surface of the filter plate 344, the dust will fall into the corresponding inclined grooves 43 and be placed in the collection shell 44 for unified collection. Under the action of the inclined grooves 43, after the dust enters the collection shell 44, when the device is tilted, the dust is not easy to come out from the inclined grooves 43. After using it for a period of time, the baffle 41 can be pulled forward, and the collection shell 44 can be driven to slide forward by the connecting plate 42 to take out the collection component 4 from the inside of the device. Then, the rotating cover 45 can be rotated to pour out the filtered dust, and then the baffle 41 can be pushed to install the collection shell 44 into the shell cover 31. During use, the two baffles 41 are fixedly connected to the shell cover 31 by the buckles in the prior art. When the collection component 4 is pulled out, it can be fixed by contacting the buckle. Similarly, the rotating cover 45 and the collection shell 44 on the same side are also fixedly connected by the buckles in the prior art, and this buckle can also release the fixation of the rotating cover 45 and the collection shell 44.

[0044] It should be noted that the specific installation method of the motor and the fan 35, the circuit connection method and the control method used in the present invention are all conventional designs, and the present invention will not elaborate on them in detail.

[0045] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dust prevention device for construction engineering, characterized in that: The invention comprises a base plate (2) for mounting a cutting device, the cutting device comprising a motor, a cutting blade (5) and a second rotating shaft (51) connecting the output end of the motor and the cutting blade (5), a protective shell (1) for accommodating the cutting blade (5) and an outer shell (6) for accommodating the motor are mounted on the base plate (2), the protective shell (1) and the outer shell (6) are connected, and a filtering device (3) is also arranged on the base plate (2), the filtering device (3) is connected to a connecting pipe (8) connected to the inner cavity of the protective shell (1), so as to suck the air in the protective shell (1) into the filtering device (3).

2. The dust-proof device for construction engineering according to claim 1, characterized in that: The filtering device (3) comprises a shell cover (31), a ventilation pipe (33) communicating with a connecting pipe (8) is connected to the shell cover (31), and a fan (35) and a filter plate (344) are arranged in the ventilation pipe (33).

3. The dust prevention device for construction engineering according to claim 2, characterized in that: A scraping assembly (34) for scraping dust off the surface of the filter plate (344) is arranged in the shell cover (31), and the scraping assembly (34) comprises a scraper (342) arranged in close contact with the surface of the filter plate (344) and a driving member for driving the scraper (342) to reciprocate along the surface of the filter plate (344).

4. The dust prevention device for construction engineering according to claim 3, characterized in that: The driving member comprises a spring (343) and a cam (321); the cam (321) is fixedly connected to a first rotating shaft (32); the first rotating shaft (32) is transmission-connected to a second rotating shaft (51) via a transmission device; a guide rod (341) matching with the cam (321) is arranged on the scraper (342); the guide rod (341) is slidably arranged on the vent pipe (33) along the length direction so as to push the scraper (342) away from the cam (321) under the drive of the cam (321); one end of the spring (343) is connected to the scraper (342) and the other end is connected to the vent pipe (33) so as to drive the scraper (342) to reset.

5. The dust prevention device for construction engineering according to claim 4, characterized in that: The transmission device comprises pulleys respectively arranged on the first rotating shaft (32) and the second rotating shaft (51), and a belt is tensioned between the two pulleys.

6. The dust prevention device for construction engineering according to claim 5, characterized in that: A connecting shell for accommodating a transmission device is provided between the shell cover (31) and the shell (6).

7. The dust prevention device for construction engineering according to claim 4, characterized in that: The scraper (342), the spring (343) and the guide rod (341) are symmetrically arranged on both sides of the filter plate (344) to clean both sides of the filter plate (344) at the same time, and the two guide rods (341) cooperate with the same cam (321).

8. The dust prevention device for construction engineering according to claim 2, characterized in that: A collecting assembly (4) is arranged inside the shell cover (31), and the collecting assembly (4) comprises a collecting shell (44). The collecting shell (44) is provided with an inclined groove (43) corresponding to the position of the scraper (342), and the inclined groove (43) penetrates the collecting shell (44), extends to the inside of the collecting shell (44), and is in communication with the inner cavity of the collecting shell (44).

9. The dust prevention device for construction engineering according to claim 8, characterized in that: The collecting shell (44) is slidably connected to the shell cover (31) and the vent pipe (33); a connecting plate (42) is connected to the collecting shell (44); the connecting plate (42) penetrates the shell cover (31), extends to the outside of the shell cover (31), and is connected to a baffle (41).

10. The dust prevention device for construction engineering according to claim 9, characterized in that: One end of the collection shell (44) away from the baffle (41) is rotatably connected to the rotary cover (45), and the inner cavity of the collection shell (44) is opened and closed by rotating the rotary cover (45).

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