CN218933745U

CN218933745U - Corner trowelling device for building waterproof engineering

Info

Publication number: CN218933745U
Application number: CN202320034557.1U
Authority: CN
Inventors: 王月园; 王普
Original assignee: Weihai Putian Purification Engineering Co ltd
Current assignee: Weihai Putian Purification Engineering Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-04-28
Anticipated expiration: 2033-01-06

Abstract

The utility model provides a corner trowelling device for building waterproof engineering, which comprises a handheld machine body and a peripheral dust collector; the handheld machine body comprises a machine shell, a polishing motor is arranged in the machine shell, an output shaft of the polishing motor is connected with a cross mounting frame, a millstone seat is fixedly connected below the cross mounting frame, and a polishing disc is arranged on the millstone seat; the motor shaft sleeve is fixedly connected with the lower part of the shell, threads are arranged on the outer surface of the motor shaft sleeve, and the dust hood is connected onto the motor shaft sleeve through the threads. The utility model provides a peripheral device of the air suction related structure, thereby remarkably reducing the weight of the hand-held body and the burden of the tool on the arm. The grinding disc with larger size can be configured through the cross mounting frame, and the working efficiency can be remarkably improved compared with the small grinding disc of the existing handheld trowelling device. Compared with the prior art that a dust suction mechanism is arranged in the middle of the polishing disc, the dust suction cover is capable of fully covering the polishing disc, dust suction is more comprehensive and thorough, and the overflow situation of dust is effectively reduced.

Description

Corner trowelling device for building waterproof engineering

Technical Field

The utility model relates to the technical field of building corner trowelling devices, in particular to a corner trowelling device for building waterproof engineering.

Background

Before the building waterproof engineering begins, trowelling treatment is needed to be carried out on the bottom surface of the building, so that the flatness of the bottom surface of the building is guaranteed, and the waterproof effect is improved. Trowelling machines in common use today include both cart-type and hand-held trowelling machines. Cart type is commonly used for ground flatness polishing, and hand-held type is used for wall flatness polishing. In the use, the polishing can produce more dust and spread in the room, lead to the air quality in room to descend, the cleanliness reduces, still causes harmful effects to the respiratory tract health of polishing workman. Thus, some hand-held trowelling devices with dust extraction function have emerged.

The utility model patent with the publication number of CN214169837U discloses a corner trowelling device for building waterproof engineering, which drives a rotary vane to rotate through a rotating motor, and discharges air in an operation box through an exhaust hole, so that negative pressure is formed in the operation box and a square groove, dust particles generated in the process of trowelling operation of a machine body driving each friction plate are sucked into the square groove under the action of gas pressure, pass through a conveying pipe and finally are collected on a storage bag, the probability that the dust particles generated in the trowelling operation process float to the air is reduced, and the air quality is further improved. However, the negative pressure air suction structure and the power source are integrated on the handheld trowelling device, so that the weight of the trowelling device is obviously increased, the burden on the arm is increased, and the handheld trowelling device is difficult to hold for a long time. And dust collection inlet sets up in the bottom of the polishing dish central authorities, can appear the dust absorption incompletely, and the condition that the dust overflowed appears.

Disclosure of Invention

The utility model aims at providing a corner trowelling device for building waterproof engineering aims at solving the problem among the above-mentioned prior art.

The embodiment of the application provides a corner trowelling device for building waterproof engineering, which comprises a handheld machine body and a peripheral dust collector; the hand-held machine body comprises a machine shell, a polishing motor is arranged in the machine shell, and a hand-held handle is arranged outside the machine shell; an output shaft of the polishing motor is connected with a cross mounting frame, the lower part of the cross mounting frame is fixedly connected with a millstone seat, and a polishing disc is arranged on the millstone seat;

the motor shaft sleeve is fixedly connected to the lower part of the shell, and the output shaft sleeve of the polishing motor is arranged in the motor shaft sleeve; the outer surface of the motor shaft sleeve is provided with threads, and the motor shaft sleeve is connected with a dust hood through the threads; the dust hood is covered on the outer side of the millstone seat, and the diameter of the bottom of the dust hood is larger than that of the millstone seat; the dust hood is provided with a dust collection outlet, the dust collection outlet is connected with a suction corrugated pipe, and the other end of the suction corrugated pipe is connected to the peripheral dust collector.

Further, the cross mounting frame comprises four cross rods which form a cross, one ends of the four cross rods are fixed together through a cross connector, the other ends of the four cross rods are distributed in a radial mode, and each cross rod is fixedly connected with the grinding disc seat through a connecting sleeve.

Further, a fixed groove is formed in the middle of the cross connector, and an output shaft of the polishing motor is fixedly connected in the fixed groove.

Further, the millstone seat, the cross mounting frame and the dust hood are all made of plastics.

Further, the peripheral dust collector comprises a vehicle body shell, and rollers are arranged at the bottom of the vehicle body shell; an exhaust fan is arranged in the vehicle body, an air inlet filter disc and a dust filtering bag are arranged in the direction of an air inlet of the exhaust fan, an air inlet is formed in a vehicle body shell above the dust filtering belt, the air inlet is communicated with the dust filtering bag, and an air suction corrugated pipe is fixedly connected to the air inlet; an air outlet filter disc is arranged on the vehicle body shell in the air outlet direction of the exhaust fan.

Further, a front blocking cover and a rear blocking cover are arranged on the vehicle body shell; the front baffle cover is positioned at the dust filtering bag; the back retaining cover is positioned at the exhaust fan.

Further, the hand-held handle comprises a bar-shaped straight handle and a ring-shaped grip, and the grip is positioned opposite to the straight handle.

Further, the diameter of the millstone seat is 600-800mm, and the diameter of the bottom of the dust hood is 700-900mm.

The beneficial effects of the utility model are as follows: the hand-held machine body only has basic structures such as the motor, the millstone seat and the like, and the air suction related structure is externally arranged, so that the weight of the hand-held machine body can be obviously reduced, and the burden of using tools on arms is reduced. In addition, the grinding disc with larger size can be configured through the cross mounting frame, and the working efficiency can be remarkably improved compared with the small grinding disc of the existing handheld trowelling device. Compared with the prior art that the dust suction mechanism is arranged in the middle of the polishing disc, the dust suction cover is comprehensive and thoroughly in dust suction, and the dust overflow condition is effectively reduced.

Drawings

Fig. 1 is a schematic cross-sectional view of a hand-held device according to the present utility model.

Fig. 2 is a schematic diagram of the overall structure of the grinding disc seat.

Figure 3 is a schematic view of the overall structure of the peripheral vacuum cleaner.

In the figure: 1. an air suction bellows; 2. a housing; 3. a cross mounting rack; 4. a millstone seat; 5. connecting sleeves; 6. a motor shaft sleeve; 7. a dust hood; 8. a dust collection outlet; 9. a straight handle; 10. a grip; 11. a vehicle body case; 12. a roller; 13. an exhaust fan; 14. an air inlet filter disc; 15. a dust filtering bag; 16. an air inlet; 17. an air outlet filter disc; 18. a cross connector.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a corner trowelling device for building waterproof engineering, includes handheld organism and peripheral hardware dust catcher, and the workman holds handheld organism and carries out the work of polishing during the use, and peripheral hardware dust catcher is put subaerial at operational environment. The hand-held machine body is connected with the peripheral dust collector through the suction corrugated pipe 1.

For handheld organism, as shown in fig. 1 and 2, handheld organism includes casing 2, installs the motor of polishing in the casing 2, and the output shaft of motor of polishing cross mounting bracket 3, the below fixed connection mill seat 4 of cross mounting bracket 3, through the rotation of motor drive cross mounting bracket 3 of polishing, and then drive the mill seat 4 rotation with cross mounting bracket 3 fixed connection, install the mill of polishing of different precision on the mill seat 4, can realize the operation of trowelling to the wall. Because the hand-held machine body needs to be held, the machine body structure is simplified on the basis of meeting the basic functions, so that the machine body is light. Because the size of the polishing disc used in the utility model is large and can be 600-800mm, the stability of the traditional hand-held machine polishing disc connection mode is poor.

The cross mounting frame 3 comprises four cross rods which form a cross, one ends of the four cross rods are fixed together through cross connectors 18, the other ends of the four cross rods are distributed in a radial mode, and each cross rod is fixedly connected with the grinding disc seat 4 through a connecting sleeve 5. A fixed slot is formed in the middle of the cross connector 18, and an output shaft of the polishing motor is fixedly connected in the fixed slot. The cross mounting frame 3 increases the contact area with the millstone seat 4, and can stably transmit torque.

A motor shaft sleeve 6 is fixedly connected below the shell 2, and an output shaft sleeve of the polishing motor is arranged in the motor shaft sleeve 6; the outer surface of the motor shaft sleeve 6 is provided with threads, and the motor shaft sleeve 6 is connected with a dust hood 7 through threads. The dust hood 7 is covered on the outer side of the millstone seat 4, the diameter of the hood bottom of the dust hood 7 is larger than that of the millstone seat 4 and can be 700-900mm, a dust collection outlet 8 is formed in the dust hood 7, the dust collection outlet 8 is connected with the air suction corrugated pipe 1, and the other end of the air suction corrugated pipe 1 is connected to a peripheral dust collector. Therefore, the dust hood 7 can completely cover the polishing disc, and flying dust generated by polishing is directly sucked away under the action of suction force and is not easy to diffuse to the outside.

The outer part of the casing 2 is provided with a hand-held handle. The hand-held handle comprises a bar-shaped straight handle 9 and a ring-shaped grip 10, wherein the grip 10 is positioned opposite to the straight handle 9 so as to be convenient for two hands of a worker to use.

The millstone seat 4, the cross mounting frame 3 and the dust hood 7 are all made of plastics, so that the whole millstone seat is light and convenient to hold and use.

For the peripheral dust collector, as shown in fig. 3, the peripheral dust collector comprises a vehicle body shell 11, and a roller 12 is arranged at the bottom of the vehicle body shell 11; an exhaust fan 13 is arranged in the vehicle body, an air inlet filter sheet 14 and a dust filtering bag 15 are arranged in the direction of an air inlet of the exhaust fan 13, an air inlet 16 is formed in a vehicle body shell 11 above the dust filtering bag 15, the air inlet 16 is communicated with the dust filtering bag 15, and the air suction corrugated pipe 1 is fixedly connected to the air inlet 16; an air outlet filter piece 17 is arranged on the vehicle body shell 11 in the air outlet direction of the exhaust fan 13. The peripheral dust collector is dragged on the ground to generate suction force to suck dust generated by polishing into the dust filtering bag 15 for collection. The rear gas is filtered by the air inlet filter 14 and the air outlet filter 17 in sequence and then discharged.

The vehicle body shell 11 is provided with a front baffle cover and a rear baffle cover; the front baffle cover is positioned at the dust filtering bag 15, and the dust filtering bag 15 can be taken out for cleaning by opening the front baffle cover. The rear baffle cover is positioned at the exhaust fan 13, and the state of the exhaust fan 13 can be observed by opening the rear baffle cover, so that the repair is convenient.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The corner trowelling device for the building waterproof engineering is characterized by comprising a handheld machine body and an external dust collector; the hand-held machine body comprises a machine shell, a polishing motor is arranged in the machine shell, and a hand-held handle is arranged outside the machine shell; an output shaft of the polishing motor is connected with a cross mounting frame, the lower part of the cross mounting frame is fixedly connected with a millstone seat, and a polishing disc is arranged on the millstone seat;

2. The corner trowelling device for building waterproof engineering according to claim 1, wherein the cross mounting frame comprises four cross rods which form a cross, one ends of the four cross rods are fixed together through cross connectors, the other ends of the four cross rods are distributed in a radial mode, and each cross rod is fixedly connected with the grinding disc seat through a connecting sleeve.

3. The corner trowelling device for building waterproof engineering according to claim 2, wherein a fixing groove is formed in the middle of the cross connector, and an output shaft of the polishing motor is fixedly connected in the fixing groove.

4. The corner trowelling device for building waterproof engineering according to claim 1, wherein the millstone base, the cross mounting frame and the dust hood are all made of plastics.

5. The corner trowelling device for construction waterproof engineering according to claim 1, wherein the peripheral dust collector comprises a vehicle body shell, and rollers are arranged at the bottom of the vehicle body shell; an exhaust fan is arranged in the vehicle body, an air inlet filter disc and a dust filtering bag are arranged in the direction of an air inlet of the exhaust fan, an air inlet is formed in a vehicle body shell above the dust filtering belt, the air inlet is communicated with the dust filtering bag, and an air suction corrugated pipe is fixedly connected to the air inlet; an air outlet filter disc is arranged on the vehicle body shell in the air outlet direction of the exhaust fan.

6. The corner trowelling device for construction waterproof engineering according to claim 5, wherein a front blocking cover and a rear blocking cover are arranged on the vehicle body shell; the front baffle cover is positioned at the dust filtering bag; the back retaining cover is positioned at the exhaust fan.

7. The corner trowelling device for construction and waterproofing works according to claim 1, wherein said hand-held grip comprises a straight grip in the form of a bar and a grip in the form of a loop, said grip being located opposite said straight grip.

8. The corner trowelling device for building waterproof engineering according to claim 1, wherein the diameter of the millstone seat is 600-800mm, and the diameter of the bottom of the dust hood is 700-900mm.