External facade low-dust polishing device

Abstract

The utility model discloses an exterior facade low-dust grinding device which comprises a first motor and a grinding piece installed at the output end of the first motor and further comprises a shell, a cover body, a dust collection bag and a fan. The first motor is arranged in the shell, the cover body is connected with the shell, the grinding disc is covered with the cover body, the cover body is connected with the shell, and the cover body is communicated with the interior of the shell through a pipeline; and the fan and the dust collection bag are both arranged in the shell. According to the grinding device, diffusion and falling of dust can be effectively reduced in the outer vertical face grinding process, the influence of the dust on the environment and operators is remarkably reduced, and meanwhile the burden of cleaning work after grinding is relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a polishing device technical field, specifically is a kind of low-dust polishing device of outer facade. BACKGROUND

[0002] The outer facade polishing is a common building construction technology, which is widely used in the process of exterior wall decoration, maintenance and renovation. Since the outer facade is a vertical structure, the traditional polishing method usually uses manual polishing machine for operation. The operator needs to stand on the scaffold or basket, and polish the facade one by one by moving the polishing machine.

[0003] During the polishing process, a large amount of dust will be generated with the separation of the grinding material. These dusts usually spread downward under the action of gravity, causing serious impact on the working environment and the surrounding environment. Since the dust particles are extremely fine and the spread range is wide, not only the construction site is polluted, but also the health of the construction personnel may be harmed, increasing the difficulty of cleaning work. In addition, the gravity settlement of dust will gather on the ground and other building components, further increasing the complexity of subsequent cleaning. Therefore, how to reduce the spread of dust generated during polishing has become a problem to be solved. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a low-dust polishing device for outer facade, aiming at solving the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a low-dust polishing device for outer facade, comprising a first motor and a grinding disc mounted on the output end of the first motor, the low-dust polishing device for outer facade further comprising a housing, a cover, a dust bag and a fan; the first motor is arranged in the housing, the cover is connected with the housing, and the cover is arranged outside the grinding disc, the cover is connected with the housing, and the cover is communicated with the inside of the housing through a pipeline; the fan and the dust bag are arranged in the inside of the housing, wherein the fan can adsorb the dust in the cover into the dust bag in the housing through the pipeline when it is started.

[0006] Preferably, the fan comprises a second motor, a fan blade and two connecting pieces; the two connecting pieces are connected with the second motor, and the sides of the two connecting pieces away from the second motor are connected with the inner wall of the housing.

[0007] Preferably, the housing comprises a hand-held part and a mounting part, the hand-held part is threadedly connected with the mounting part, the first motor is arranged in the mounting part, and the cover is connected with the mounting part.

[0008] Preferably, an installation part is fixedly installed inside the hand-held part, and the dust collecting bag is detachably connected with the installation part.

[0009] Preferably, the dust collecting bag comprises a bag body, an installation ring and a connecting rod, the bag body is fixedly connected with the installation ring, and the connecting rod penetrates through the installation ring and is fixedly connected with the installation ring; the installation part is in a ring structure, an inner wall of the installation part is provided with a clamping groove, a side of the installation part close to the installation part is provided with a notch in communication with the clamping groove, and a limiting protrusion is arranged in the clamping groove.

[0010] Preferably, an air outlet is arranged on the hand-held part.

[0011] Preferably, an auxiliary handle is further connected with the shell.

[0012] Preferably, a switch for controlling the first motor and the fan is arranged on the shell.

[0013] Advantages

[0014] The utility model provides a kind of low-dust polishing device of facade, the utility model in polishing process, the dust generated is limited in local range by cover body, and under the suction force of fan, it is entered the inside of shell by cover body and pipeline, finally is collected in dust collecting bag.Dust collecting bag can be removed for cleaning or replacement after polishing work is completed.The polishing device can effectively reduce the diffusion and drop of dust in facade polishing process, significantly reduce the influence of dust on environment and operator, also reduce the burden of cleaning work after polishing. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic view of the low-dust polishing device of facade of the utility model.

[0016] Figure 2 It is the explosion structure schematic view of the low-dust polishing device of facade of the utility model.

[0017] Figure 3 It is the cross-sectional structure schematic view of the low-dust polishing device of facade of the utility model.

[0018] Figure 4 It is the explosion structure schematic view of the dust collecting bag and installation part of the low-dust polishing device of facade of the utility model.

[0019] REFERENCE SIGNS

[0020] 1 - first motor, 2 - abrasive sheet, 3 - housing, 31 - hand-held portion, 311 - air outlet, 32 - mounting portion, 33 - mounting member, 331 - clamping groove, 332 - notch, 333 - protrusion, 4 - cover, 41 - pipeline, 5 - dust collection bag, 51 - bag body, 52 - mounting ring, 53 - connecting rod, 6 - fan, 61 - second motor, 62 - fan blade, 63 - connecting member, 7 - switch, 8 - auxiliary handle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides a kind of facade low dust polishing device, to solve the problem of dust diffusion in prior art facade polishing seriously.The device includes first motor 1, abrasive sheet 2, housing 3, cover 4, pipeline 41, dust collection bag 5 and fan 6.

[0023] The first motor 1 is installed in the housing 3, and the output end of the first motor 1 is connected to the abrasive sheet 2, for driving the abrasive sheet 2 to rotate to complete the polishing operation.The cover 4 is fixedly connected with the housing 3, and the cover 4 is covered outside the abrasive sheet 2, for limiting the diffusion of dust during polishing.The cover 4 is communicated with the inside of the housing 3 through the pipeline 41, to provide a channel for dust collection.

[0024] The fan 6 and the dust collection bag 5 are both installed in the housing 3, wherein the fan 6 is used to generate suction, and the dust generated in the cover 4 is sucked into the inside of the housing 3 through the pipeline 41, and finally collected into the dust collection bag 5.The dust collection bag 5 is used to contain dust, for subsequent cleaning.

[0025] In use, the operator holds the housing 3, and starts the first motor 1 and the fan 6.The first motor 1 is started, driving the abrasive sheet 2 to rotate, and the abrasive sheet 2 contacts the facade wall or wall component to polish the surface thereof.During polishing, the dust generated is limited in a local range by the cover 4, and under the action of the suction of the fan 6, enters the inside of the housing 3 through the cover 4 and the pipeline 41, and is finally collected in the dust collection bag 5.The dust collection bag 5 can be taken out for cleaning or replacement after polishing is completed.The polishing device can effectively reduce the diffusion and falling of dust during facade polishing, significantly reduces the influence of dust on the environment and the operator, and also reduces the burden of cleaning work after polishing.

[0026] In the embodiment, the fan 6 is arranged inside the housing 3 to provide suction force to suck dust generated in the polishing process into the housing 3 through the cover 4 and the pipeline 41 and collect the dust in the dust collecting bag 5. The fan 6 comprises a second motor 61, a fan blade 62 and two connecting members 63.

[0027] The second motor 61 is used to drive the fan blade 62 to rotate to generate suction force. The fan blade 62 is mounted on the output shaft of the second motor 61 and can rotate at high speed to generate strong airflow suction force for efficient collection of dust generated in the polishing process. The two connecting members 63 are arranged on the two sides of the second motor 61 respectively to support and fix the second motor 61 in a stable position in the housing 3. One end of the connecting member 63 is connected with the second motor 61, and the other end is fixedly connected with the inner wall of the housing 3, so that the second motor 61 and the fan blade 62 remain stable during operation to avoid affecting the suction efficiency of the fan 6 due to vibration or movement.

[0028] In the embodiment, the housing 3 comprises a hand-held part 31 and a mounting part 32. The hand-held part 31 is threadedly connected with the mounting part 32, which can be quickly assembled and disassembled to facilitate disassembly and cleaning of the device.

[0029] The mounting part 32 is arranged at the front end of the housing 3 and used to mount the first motor 1 and the cover 4. The mounting part 32 is provided with two independent spaces, i.e. a containing space for containing the first motor 1 and a dust collecting space in communication with the inside of the hand-held part 31. The containing space is used to mount the first motor 1 and provide protection for the first motor 1 to avoid dust entering to affect the normal work of the first motor 1. The output end of the first motor 1 extends out of the containing space and is connected with the abrasive disc 2. The dust collecting space is used to collect dust transported through the pipeline 41 and is connected with the dust collecting bag 5 to contain the dust. The containing space and the dust collecting space are isolated by a partition plate and are not in communication with each other to ensure that dust does not enter the working area of the first motor 1 and to ensure the operation stability and service life of the motor.

[0030] The hand-held part 31 is designed as the rear end part of the housing 3 to facilitate the operator to hold and operate. The threaded connection of the hand-held part 31 with the mounting part 32 can not only firmly fix, but also facilitate disassembly. When the inside of the hand-held part 31, the dust collecting space and the dust collecting bag 5 need to be cleaned, the operator only needs to rotate and disassemble the hand-held part 31 to conveniently take out the dust collecting bag 5 or clean and maintain the related parts.

[0031] One end of the pipeline 41 is connected with the cover 4 to collect dust generated inside the cover 4, and the other end extends into the dust collecting space in the mounting part 32 to ensure that the dust can be smoothly transported into the dust collecting bag 5. This design effectively improves the dust collection efficiency of the device through reasonable layout and space isolation, and facilitates subsequent cleaning and maintenance work.

[0032] Through the above design, the structure of the shell 3 is reasonable, which can not only meet the convenience of operation, but also ensure the separation of the internal space, avoid dust pollution of the electrical elements in the device, and improve the stability and service life of the polishing device. In addition, the detachable design realized by screw connection significantly improves the maintenance convenience of the device.

[0033] In the present embodiment, the inside of the handheld part 31 is fixedly installed with a mounting piece 33, and the dust collection bag 5 is connected with the mounting piece 33 in a detachable manner, so as to realize convenient installation and removal of the dust collection bag 5.

[0034] The dust collection bag 5 comprises a bag body 51, a mounting ring 52 and a connecting rod 53. The bag body 51 is used for collecting dust generated in the polishing process, and is made of high-strength air-permeable fiber material, such as polyester or nylon, which has good wear resistance, durability and air permeability, and can effectively filter dust particles and prevent leakage. The mounting ring 52 is fixed at the opening of the bag body 51 to ensure that the bag body 51 remains stable in shape during installation or removal. The connecting rod 53 penetrates through the mounting ring 52 and is fixedly connected therewith, and is used for installation and positioning of the bag body 51. The bag body 51 can be made of high-strength air-permeable fiber material, such as polyester, nylon or polypropylene non-woven fabric.

[0035] The mounting piece 33 has a circular ring structure and is fixed inside the handheld part 31. The inner wall of the mounting piece 33 is provided with a clamping groove 331 for accommodating the connecting rod 53 and realizing connection and positioning. An opening 332 is formed in the side of the mounting piece 33 close to the mounting part 32 and communicates with the clamping groove 331, which facilitates the installation and removal operation of the dust collection bag 5. In addition, a limiting protrusion 333 is arranged in the clamping groove 331 for rotation limiting of the connecting rod 53. The limiting protrusion 333 can be made of elastic material, such as rubber or silicone, which can provide sufficient limiting effect and effectively avoid damage to the connecting rod 53.

[0036] When the dust collection bag 5 is removed, the operator can pinch and rotate the connecting rod 53 to move the connecting rod 53 in the clamping groove 331 until the connecting rod 53 is aligned with the opening 332. At this time, the connecting rod 53 can be directly removed from the opening 332 to realize convenient disassembly of the dust collection bag 5. During installation, the connecting rod 53 is first aligned with the opening 332, and then the connecting rod 53 is inserted into the clamping groove 331, and then the connecting rod 53 is rotated to pass over the limiting protrusion 333 and be fixed in place. The limiting protrusion 333 can effectively prevent the connecting rod 53 from accidentally loosening during use, and ensure the installation stability of the dust collection bag 5.

[0037] An air outlet 311 is arranged on the handheld part 31 for discharging the airflow generated during the operation of the fan 6. The position of the air outlet 311 is reasonably designed, which can smoothly discharge the airflow of the fan 6, prevent the accumulation of air in the shell 3, and ensure the normal operation of the device.

[0038] The shell 3 is externally connected with an auxiliary handle 8, which is fixedly connected with the shell 3 through bolts or buckle structures. The setting of the auxiliary handle 8 can provide an additional support point for the operator, facilitating two-handed holding operation, thereby effectively reducing the operation fatigue, improving the use stability and safety of the device. The surface of the auxiliary handle 8 is designed with anti-skid texture or coated with rubber material to enhance the comfort and reliability of holding.

[0039] In addition, the shell 3 is provided with a switch 7 for controlling the start-stop operation of the first motor 1 and the fan 6. The switch 7 adopts an integrated control design, which can start the first motor 1 and the fan 6 separately or simultaneously, facilitating flexible adjustment of the running state of the device according to different working conditions. The position of the switch 7 is set at a position which is easy to reach for the operator, improving the convenience of operation.

[0040] It should be noted that, in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations.

Claims

1. A facade low-dust polishing device comprising a first motor (1) and a polishing disc (2) mounted on the output end of the first motor (1), characterized in that, Also include the shell (3), cover (4), dust bag (5) and fan (6); The first motor (1) is arranged in the shell (3), the cover (4) is connected with the shell (3), and the cover (4) is covered outside the grinding disc (2), the cover (4) is connected with the shell (3), and the cover (4) is communicated with the inside of the shell (3) through pipeline (41); The fan (6) and the dust bag (5) are arranged in the inside of the shell (3), wherein the fan (6) can be started to adsorb the dust in the cover (4) to the dust bag (5) in the shell (3) through the pipeline (41).

2. The facade low-dust polishing device according to claim 1, characterized in that The fan (6) includes a second motor (61), a fan blade (62) and two connecting pieces (63); Two connecting pieces (63) are connected with the second motor (61), and the sides, away from the second motor (61), of the two connecting pieces (63) are connected with the inner wall of the shell (3).

3. The facade low-dust polishing device according to claim 1, characterized in that, The shell (3) includes a hand-held part (31) and a mounting part (32), the hand-held part (31) is threadedly connected with the mounting part (32), the first motor (1) is arranged in the mounting part (32), and the cover (4) is connected with the mounting part (32).

4. The facade low-dust polishing device according to claim 3, characterized in that The inside of the hand-held part (31) is fixedly provided with a mounting piece (33), and the dust bag (5) is detachably connected with the mounting piece (33).

5. The facade low-dust polishing device according to claim 4, characterized in that The dust bag (5) includes a bag body (51), a mounting ring (52) and a connecting rod (53), the bag body (51) is fixedly connected with the mounting ring (52), and the connecting rod (53) penetrates through the mounting ring (52) and is fixedly connected with the mounting ring (52); The mounting piece (33) is in a circular ring structure, the inner wall of the mounting piece (33) is provided with a clamping groove (331), one side of the mounting piece (33), close to the mounting part (32), is provided with a notch (332) in communication with the clamping groove (331), and the clamping groove (331) is provided with a limiting protrusion (333).

6. The facade low-dust polishing device according to claim 3, characterized in that An air outlet (311) is arranged on the hand-held part (31).

7. The facade low-dust polishing device according to claim 1, characterized in that An auxiliary handle (8) is further connected to the shell (3).

8. The facade low-dust polishing device according to claim 1, characterized in that A switch (7) is arranged on the shell (3) for controlling the first motor (1) and the fan (6).

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