CN210879078U

CN210879078U - Dust-free polisher

Info

Publication number: CN210879078U
Application number: CN201920812447.7U
Authority: CN
Inventors: 冯力生
Original assignee: China Resources Land Ltd
Current assignee: China Resources Construction Corp; China Resources Land Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-06-30
Anticipated expiration: 2029-05-31

Abstract

The utility model belongs to the technical field of dustless polisher, a dustless polisher is disclosed, including drive assembly and polishing assembly, drive assembly includes motor, dust absorption seat and the transmission seat that connects gradually, be equipped with wind-guiding mouth and air inlet cap mouth respectively on the adjacent both sides outer wall of dust absorption seat, and the inside of dust absorption seat installs the dust absorption flabellum, the inside of transmission seat installs drive gear; the polishing assembly comprises a sand disc and a dust hood, the sand disc is arranged inside the dust hood, and the sand disc is rotatably connected with the transmission seat through a rotating shaft; the utility model discloses simplify the dismantlement operation between dustcoat main part and the annex for the dismouting operation of suction hood when specifically using is more convenient, uses the dismantlement operation as an example, and concrete operating procedure is "one draw, two change", and the annex is connected all the time on the main part in above-mentioned operation, thereby has effectively solved the problem that the annex was not convenient for deposit and lost easily after the dismantlement.

Description

Dust-free polisher

Technical Field

The utility model belongs to the technical field of dustless polisher, concretely relates to dustless polisher.

Background

A dust-free grinding machine in the prior art comprises a circular sand table and a dust suction cover, wherein the circular sand table is driven by a driving motor, and the dust suction cover is arranged outside the sand table and is connected with a dust suction device, so that dust generated in the grinding process of the sand table is sucked into the dust suction device, and dust-free grinding is realized;

however, in the conventional dust-free sander, a problem of sanding dead angles due to structural limitations exists, and in order to solve the problem, a dust hood with a specific split structure is proposed in the chinese utility model patent of CN201721020334.0, but in the process of actual use of the dust hood, the operation of separating the main part from the accessories is troublesome, and the accessories are completely separated from the main part after being disassembled, so that on one hand, the storage of the disassembled accessories is not convenient to realize, and on the other hand, the phenomenon of accessory loss easily occurs;

in addition, dustless polisher is under the state of long-term use, and its motor power's temperature can rise greatly, improves the heat dissipation with the mode of addding motor heat dissipation wheel in CN 201721019234.6's Chinese utility model patent, and motor heat dissipation wheel needs corresponding driver part to drive when using, or can arouse the increase of whole polisher energy consumption, or can arouse the increase of motor power load to the loss rate that leads to whole polisher improves.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dustless polisher to there is the comparatively trouble of suction hood dismouting and the radiating part of extra increase to solve current dustless polisher when using to improve the problem of polisher energy consumption or loss easily.

In order to achieve the above object, the utility model provides a following technical scheme: the dust-free polisher comprises a driving assembly and a polishing assembly, wherein the driving assembly comprises a motor, a dust collection seat and a transmission seat which are sequentially connected, air guide openings and air inlet cap openings are respectively formed in the outer walls of two adjacent sides of the dust collection seat, dust collection fan blades are installed inside the dust collection seat, and a transmission gear is installed inside the transmission seat; the polishing assembly comprises a sand disc and a dust hood, the sand disc is arranged inside the dust hood, and the sand disc is rotatably connected with the transmission seat through a rotating shaft; the dust hood comprises an outer hood main part, an inner hood and an outer hood accessory, the inner hood is embedded in the outer hood main part, the inner hood is rotatably connected with the outer hood main part, a dust absorption cap opening is arranged on the outer wall of one side of the inner hood and is connected with an air inlet cap opening, the outer hood accessory is installed on one side of the outer hood main part, two connecting rods are symmetrically welded on the outer wall of one side of the outer hood accessory, connecting blocks are welded at the movable ends of the two connecting rods, clamping grooves are formed at the two ends of each connecting block, two fixing seats are symmetrically welded on the outer wall of one side of the outer hood main part, connecting grooves are formed in the two fixing seats, the two connecting blocks are respectively located in the two connecting grooves, two groups of limiting devices are symmetrically arranged in the two connecting grooves and are clamped and connected with the clamping grooves, and the two groups of limiting devices respectively comprise limiting pins and rotating shafts, springs are welded at one ends of the limiting pin and the rotating shaft.

Preferably, the handle is installed at the bottom end of the dust collection seat, the air outlet channel, the separation cavity and the air guide cavity are formed in the handle, the air outlet channel is connected with the top end of the separation cavity, the air guide cavity is connected with the inner wall of one side of the separation cavity, the central pipe is welded in the separation cavity, and the flow guide rotary vane is welded on the outer wall of the central pipe.

Preferably, a conduction valve is embedded between the central pipe and the air outlet channel, a valve core is installed inside the conduction valve, a through hole is formed inside the valve core, and a push rod is welded on the outer wall of one side of the valve core.

Preferably, the movable end of the push rod is positioned outside the conduction valve, and a spring is sleeved at the position of one side of the conduction valve on the push rod.

Preferably, the outer wall of the dust collection cap opening is sleeved with a connecting threaded sleeve, and the connecting threaded sleeve is connected with the air inlet cap opening in a screwing mode.

Preferably, the dust collection cap opening is welded with a limiting ring, the limiting ring is located inside the connecting threaded sleeve, the inner wall of the connecting threaded sleeve is provided with a guide groove, and the guide groove is connected with the limiting ring in a sliding mode.

Compared with the prior art, the utility model, following beneficial effect has:

(1) the utility model discloses simplify the dismantlement operation between dustcoat main part and the annex for the dismouting operation of suction hood when specifically using is more convenient, uses the dismantlement operation as an example, and concrete operating procedure is "one draw, two changes": the 'first pulling' means pulling the accessory, thereby realizing the separation of the clamping structure between the main part and the accessory and moving the accessory to a rotatable position; the 'two turns' refers to 180 degrees of turning of the accessory, so that the accessory is attached to the non-working surface of the main part, and the main part can still be suitable for polishing corners;

in addition, the accessory is always connected to the main part in the operation, so that the problems that the accessory is inconvenient to store and easy to lose after being detached are effectively solved.

(2) The utility model realizes the auxiliary heat dissipation of the motor by separating the air flow and the dust without adding an additional driving type heat dissipation structure, thereby effectively avoiding the problems of energy consumption increase or load increase of the whole grinding machine; specifically, the separation between the airflow and the dust adopts the effect of cyclone separation, so that the separated airflow and the separated dust can be effectively discharged independently, and the motor fault caused by blowing the dust to the motor is avoided.

(3) The structure for separating the air flow from the dust is also provided with the conducting valve, so that the using state of the whole structure is effectively adjusted, and the using requirements under different loading states are met.

(4) The utility model provides an each structure is detachable connection to this guarantees can realize the change of independent part when carrying out the maintenance of polisher, reduces the cost of overhaul of this polisher.

Drawings

Fig. 1 is a side view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an expanded view of the dust hood of the present invention;

FIG. 4 is an enlarged view of FIG. 3 at B;

fig. 5 is a side view of the connecting block of the present invention;

FIG. 6 is a schematic view of the folding of the suction hood of the present invention;

FIG. 7 is a schematic structural view of the handle of the present invention;

FIG. 8 is a schematic view of a conduction valve according to the present invention;

in the figure: 1-motor, 2-dust absorption seat, 3-dust absorption fan blade, 4-dust absorption cap opening, 5-sand disc, 6-dust absorption cover, 61-outer cover main part, 611-fixing seat, 612-limiting device, 613-connecting groove, 62-inner cover, 63-outer cover accessory, 631-connecting rod, 632-connecting block, 633-clamping groove, 7-transmission seat, 8-handle, 9-air guide opening, 10-air inlet cap opening, 11-connecting screw sleeve, 12-guide groove, 13-limiting ring, 14-air outlet channel, 15-central tube, 16-guide rotary sheet, 17-separation cavity, 18-conduction valve, 19-air guide cavity, 20-spring, 21-push rod, 22-through hole and 23-valve core.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides the following technical solutions: the dust-free polisher comprises a driving assembly and a polishing assembly, wherein the driving assembly comprises a motor 1, a dust collection seat 2 and a transmission seat 7 which are sequentially connected, an air guide opening 9 and an air inlet cap opening 10 are respectively arranged on the outer walls of two adjacent sides of the dust collection seat 2, a dust collection fan blade 3 is installed inside the dust collection seat 2, and a transmission gear is installed inside the transmission seat 7;

the polishing assembly comprises a sand disc 5 and a dust hood 6, the sand disc 5 is arranged inside the dust hood 6, and the sand disc 5 is rotatably connected with a transmission seat 7 through a rotating shaft;

the dust hood 6 comprises an outer hood main part 61, an inner hood 62 and an outer hood accessory 63, the inner hood 62 is embedded in the outer hood main part 61, the inner hood 62 is rotatably connected with the outer hood main part 61, a dust cap opening 4 is arranged on the outer wall of one side of the inner hood 62, the dust cap opening 4 is connected with the air inlet cap opening 10, the outer hood accessory 63 is installed on one side of the outer hood main part 61, two connecting rods 631 are symmetrically welded on the outer wall of one side of the outer hood accessory 63, connecting blocks 632 are welded at the movable ends of the two connecting rods 631, clamping grooves 633 are respectively arranged at the two ends of each connecting block 632, two fixing seats 611 are symmetrically welded on the outer wall of one side of the outer hood main part 61, connecting grooves 613 are respectively arranged in the two connecting grooves 611, two groups of limiting devices 612 are symmetrically arranged in the two connecting grooves 613, and the limiting devices 612 are connected with the clamping grooves 633 in a clamping manner, and the two sets of limiting devices 612 respectively comprise a limiting pin and a rotating shaft, and springs are welded at one ends of the limiting pin and the rotating shaft.

In embodiment 1, as shown in fig. 3, at this time, the dust hood 6 is set to be in an unfolded use state, which is suitable for a polishing operation of a conventional wall surface or floor surface, specifically, in this state, the connection structure of the housing main part 61 and the housing accessory 63 is as shown in fig. 4, the connection block 632 is positioned at the deepest position in the connection groove 613, and is engaged with one of the limiting devices 612 with a limiting pin, and the limiting pin in the limiting device 612 has the same structure as the engaging groove 633, so that the connection block 632 is limited not to rotate, and the housing main part 61 and the housing accessory 63 are stably connected;

embodiment 2, as shown in fig. 6, at this time, the dust hood 6 is set to be in a folded use state, and is suitable for polishing operation at corners, specifically, the connecting block 632 in this state is positioned at the shallowest position in the connecting groove 613, and is engaged with another limiting device 612 having a rotating shaft, the rotating shaft is in a cylindrical structure, and the connecting block 632 is not limited, so that the connecting block 632 is in a rotatable state, thereby effectively turning over the housing attachment 63, and ensuring that one side of the housing main member 61 forms a planar structure, and polishing operation at corners can be effectively realized;

specifically, when the operation of changing between example 1 and example 2 is performed, the operation procedure is as follows: setting the embodiment 1 as an initial use state, starting the motor 1 at the moment, driving the dust collection fan blade 3 and a transmission gear in a transmission seat 7 to rotate by the motor 1 through a rotating shaft, driving a sand disc 5 to rotate by the transmission seat 7 through the rotating shaft, thereby realizing polishing operation, simultaneously generating negative suction effect on the dust collection fan blade 3 in rotation, enabling dust in the polishing process to pass through a dust collection cap opening 4 and an air inlet cap opening 10 to enter the inside of the dust collection seat 2, then discharging the dust through an air guide opening 9, forming a connection mode in a figure 3 by the outer cover main part 61 and the outer cover accessory 63 in the above process, and keeping the dust collection cover 6 as a complete circular structure at the moment;

when the corners of the wall or the ground are required to be polished, the outer cover main part 61 and the outer cover accessory 63 are required to be disassembled, the outer cover accessory 63 is pulled in the direction away from the outer cover main part 61 at the moment, the outer cover accessory 63 drives the connecting block 632 to synchronously move through the connecting rod 631, so that the connecting block 632 moves from the position located in the embodiment 1 to the position located in the embodiment 2, the connecting block 632 is in a rotatable state, then the outer cover accessory 63 is rotated by 180 degrees, the outer cover accessory 63 and the contact surface of the outer cover main part 61 form an extending connection state (as shown in fig. 6), at the moment, the exposed plane can be attached to the corners of the wall or the ground, and the corner polishing can be effectively finished.

Further, handle 8 is installed to the bottom of dust absorption seat 2, and handle 8's inside has seted up air-out passageway 14, separation chamber 17 and wind-guiding chamber 19, and air-out passageway 14 is connected with the top of separation chamber 17, and wind-guiding chamber 19 is connected with one side inner wall of separation chamber 17, and the inside welding of separation chamber 17 has center tube 15, and the welding has water conservancy diversion rotary vane 16 on the outer wall of center tube 15.

Furthermore, a conduction valve 18 is embedded between the central tube 15 and the air outlet channel 14, a valve core 23 is installed inside the conduction valve 18, a through hole 22 is formed inside the valve core 23, and a push rod 21 is welded on the outer wall of one side of the valve core 23.

Specifically, the movable end of the pushrod 21 is located outside the conduction valve 18, and the pushrod 21 is provided with a spring 20 at a position on the conduction valve 18 side.

In embodiment 3, as shown in fig. 7 to 8, the conduction valve 18 is in an initial sealed state, so that a seal is formed between the air outlet channel 14 and the separation cavity 17, at this time, dust and air flow are directly discharged after passing through the air guide cavity 19 and the separation cavity 17, and the motor 1 is suitable for an initial use state or a short-time use, and at this time, the temperature of the motor 1 is low, and auxiliary heat dissipation is not needed;

embodiment 4, the conduction valve 18 is opened to make the air outlet channel 14 and the separation cavity 17 conducted, at this time, the dust and the air flow form cyclone separation in the separation cavity 17, the separated dust is discharged from the lower end of the separation cavity 17, and the air flow passes through the central tube 15 and flows into the air outlet channel 14, and then blows to the position of the motor 1 through the air outlet channel 14, so as to accelerate the circulation of the air flow around the motor 1, thereby improving the heat dissipation effect of the motor 1 itself, and the heat dissipation device is suitable for a later stage of long-time use, at this time, the temperature of the motor 1 itself is high, and the phenomenon that the temperature of the motor 1 is too high can be effectively avoided by matching with the;

specifically, when the operation of changing between example 3 and example 4 is performed, the operation procedure is as follows: when the air cleaner is used initially or used for a short time, a user holds the handle 8 to perform the polishing operation, the push rod 21 is kept at an initial position under the limitation of the spring 20, the valve core 23 is limited to be at the initial position, and both ends of the through hole 22 form a sealed state, in this state, air flow with dust flows into the air guide cavity 19 through the air guide opening 9, then flows into the separation cavity 17 through the air guide cavity 19, and forms spiral flow under the flow guide of the flow guide rotary sheet 16, so that the separation between the air flow and the dust is realized, but the air flow cannot flow out through the central pipe 15 because the conduction valve 18 is sealed, and in this case, the air flow and the dust are both discharged from the bottom end of the separation cavity 17;

when the service life is long, one end of the push rod 21 is pressed, so that the push rod 21 moves towards the inside of the guiding valve 18, the spring 20 is compressed at the moment, meanwhile, two ends of the through hole 22 are also communicated under movement, in the state, the central pipe 15 has an effect of guiding out airflow, the separated airflow flows into the air outlet channel 14 through the central pipe 15, then the airflow is blown to the position of the motor 1 through the air outlet channel 14, auxiliary heat dissipation is realized, and the separated dust is still discharged from the bottom end of the separation cavity 17.

It is worth to be noted that the outer wall of the dust collection cap opening 4 is sleeved with a connecting threaded sleeve 11, and the connecting threaded sleeve 11 is connected with the air inlet cap opening 10 in a screwing mode.

Preferably, a limiting ring 13 is welded on the dust collection cap opening 4, the limiting ring 13 is located inside the connecting threaded sleeve 11, a guide groove 12 is formed in the inner wall of the connecting threaded sleeve 11, and the guide groove 12 is in sliding connection with the limiting ring 13.

Taking the above structure as an example, the detachable connection between each structure is realized, and the specific dismounting mode is as follows: during installation, the dust collection seat 2, the transmission seat 7 and the dust collection cover 6 are sequentially connected through bolts, the connection threaded sleeve 11 on the dust collection cap opening 4 is moved after connection is completed, one end of the connection threaded sleeve 11 is sleeved on the air inlet cap opening 10 and rotates, and therefore screwing connection of the air inlet cap opening 10 and the connection threaded sleeve 11 is achieved until the connection threaded sleeve 11 cannot move, and the limiting ring 13 is set to avoid separation of the connection threaded sleeve 11 from the dust collection cap opening 4 on one hand and achieve limiting in the screwing process on the other hand so as to ensure that the dust collection cap opening 4 and the air inlet cap opening 10 can form sealing connection; when the device is disassembled, the reverse operation of the process is carried out; the operation is simple, and the disassembly and the assembly are easy.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Dustless polisher, its characterized in that: the dust collector comprises a driving assembly and a polishing assembly, wherein the driving assembly comprises a motor (1), a dust collection seat (2) and a transmission seat (7) which are sequentially connected, an air guide opening (9) and an air inlet cap opening (10) are respectively arranged on the outer walls of two adjacent sides of the dust collection seat (2), a dust collection fan blade (3) is installed inside the dust collection seat (2), and a transmission gear is installed inside the transmission seat (7);

the polishing assembly comprises a sand disc (5) and a dust hood (6), the sand disc (5) is installed inside the dust hood (6), and the sand disc (5) is rotatably connected with the transmission seat (7) through a rotating shaft;

the dust hood (6) comprises an outer hood main part (61), an inner hood (62) and an outer hood accessory (63), the inner hood (62) is embedded into the outer hood main part (61), the inner hood (62) is rotatably connected with the outer hood main part (61), a dust suction cap opening (4) is arranged on the outer wall of one side of the inner hood (62), the dust suction cap opening (4) is connected with an air inlet cap opening (10), the outer hood accessory (63) is installed on one side of the outer hood main part (61), two connecting rods (631) are symmetrically welded on the outer wall of one side of the outer hood accessory (63), two connecting blocks (632) are welded at the movable end of each connecting rod (631), clamping grooves (633) are respectively formed at the two ends of each connecting block (632), two fixing seats (611) are symmetrically welded on the outer wall of one side of the outer hood main part (61), and connecting grooves (613) are respectively formed in the inner parts of the fixing seats (611), and two connecting blocks (632) are respectively located the inside of two connecting grooves (613), two the inside of connecting groove (613) all is equipped with two sets of stop device (612) symmetrically, stop device (612) are connected with draw-in groove (633) block, and two sets of stop device (612) include spacer pin and axis of rotation respectively, and the spring has all been welded to the one end of spacer pin and axis of rotation.

2. The dust-free sander of claim 1, wherein: handle (8) are installed to the bottom of dust absorption seat (2), and air-out passageway (14), separation chamber (17) and wind-guiding chamber (19) have been seted up to the inside of handle (8), air-out passageway (14) are connected with the top of separation chamber (17), wind-guiding chamber (19) and one side inner wall connection of separation chamber (17), and the inside welding of separation chamber (17) has center tube (15), the welding has water conservancy diversion rotary vane (16) on the outer wall of center tube (15).

3. The dust-free sander of claim 2, wherein: a conduction valve (18) is embedded between the central pipe (15) and the air outlet channel (14), a valve core (23) is installed inside the conduction valve (18), a through hole (22) is formed in the valve core (23), and a push rod (21) is welded on the outer wall of one side of the valve core (23).

4. The dust-free sander of claim 3, wherein: the movable end of the push rod (21) is positioned outside the conduction valve (18), and a spring (20) is sleeved at the position, positioned on one side of the conduction valve (18), of the push rod (21).

5. The dust-free sander of claim 1, wherein: the outer wall of the dust collection cap opening (4) is sleeved with a connecting threaded sleeve (11), and the connecting threaded sleeve (11) is connected with the air inlet cap opening (10) in a screwing mode.

6. The dust-free sander of claim 5, wherein: the welding has spacing ring (13) on dust absorption cap mouth (4), spacing ring (13) are located the inside of connecting swivel nut (11), and have seted up guide slot (12) on the inner wall of connecting swivel nut (11), guide slot (12) and spacing ring (13) sliding connection.