JP7256882B2 - floor polisher - Google Patents

Description

This application claims priority from a patent application entitled "Floor Grinder", filed with the Chinese Patent Office on April 13, 2020, with application number 202010286974.6 .

The present application relates to the technical field of construction work, and in particular to floor sanders.

Floor polishing machine is an automated equipment for polishing or polishing concrete ground, which can be widely applied in underground parking lot and industrial factory floor construction, in the process of epoxy floor construction, hardened floor construction and emery floor construction. It is an essential device. Floor sanders are primarily used to develop subsequent floor construction operations by removing the laitance of the concrete surface (after the concrete has dried completely). A floor polisher can realize the function of floor polishing or polishing by exchanging different machine bits. For floor sanding, it is necessary to change the bit (or sanding plate) frequently for different ground qualities in order to reach good sanding efficiency and sanding quality.

Currently, the common method of changing the bit (or abrasive plate) is to manually move the entire device so that the entire device falls to the ground, and then the bit (or abrasive plate) can be changed. After replacing the bit (or polishing plate), manually lifting the device and returning it to a working state is very exhausting. In addition, in order to improve work efficiency, the working area of the floor polishing machine on the market is becoming larger and larger, and the weight of the machine itself is getting heavier and heavier. Many machines already weigh more than 500kg. . Therefore, generally only a few people can operate the device, which is cumbersome and poses a hazard to the operator's personal safety if the operation is improper. In addition, the frequent movements and tilting of the entire machine due to frequent replacement of the polishing bits or polishing plates make it easy for the water tank in the floor sander to overflow after the entire machine is tilted. Thus, the water tanks of current commercially available floor sanders are not very useful and the operator typically uses a separate water trough to manually pour the water, which is cumbersome.

In addition, the floor sanding machines on the current market are generally powered by cables and need to be manually pushed in the process of changing locations, which is labor intensive.

SUMMARY OF THE INVENTION The main object of the present application is to provide a floor grinder that solves the problems of the prior art floor grinders of inconvenient bit change and inconvenient movement.

To achieve the above objectives, the present application provides a floor grinder. The floor sanding machine has a main body holder, a first position for sanding the ground and a second position for exchanging the sanding tool which is connected to the main body holder, and is switchable between the first position and the second position. A polishing disk installed, a first moving wheel installed on the main body holder, and connected to the main body holder, having a running position moving along the ground and a retracting position away from the ground, and switching between the running position and the retracted position. a second moving wheel that can be installed, the floor sanding machine has a first working state of sanding the ground and a second working state of traveling or changing the sanding tool, the sanding disc being in the first position. and the second travel wheel is in the retracted position, the floor sander is in the first working state, and when the abrasive disc is in the second position and the second travel wheel is in the travel position, the floor sander is in the second be in working condition.

Further, the floor sanding machine further includes a telescoping device, the telescoping device being connected to the body holder and the abrasive disc and at least partially adapted to interlock with the abrasive disc to switch the abrasive disc between the first position and the second position. is telescopically installed.

Further, the floor sander further includes a first support having a first connection end jointed to the abrasive disc and a second connection end jointed to the main body holder, wherein the telescoping device is connected to the first support. The location jointed to and connecting the telescoping device and the first support is located between the first connecting end and the second connecting end.

Further, the first support includes a first support and a second support installed at an angle to each other, the first support having one end connected to the second support. , the other end of which is jointly connected to the abrasive disc, and the end of the second support remote from the first support is jointly connected to the main body holder, the telescoping device connecting the abrasive disc to the second support and the main body holder. The first support and the body holder are jointed so as to rotate about the connection.

Further, the telescopic part has a fixed part and a telescopic part, the telescopic part is connected to the fixed part and telescopically installed with respect to the fixed part, the telescopic part is connected to the main body holder, and the fixed part is attached to the polishing disc. Connected.

Further, the floor polishing machine further includes a second support, one end of the second support is connected to the main body holder, the second moving wheel is installed at the other end of the second support, and the second The support is rotatably installed with respect to the main body holder so as to switch the second moving wheel between the running position and the retracted position in conjunction with the second moving wheel.

In addition, the floor sander further includes a lock installed on the body holder for locking or unlocking to fix the mutual position of the second support and the body holder.

Further, the floor sander further includes a first drive drivingly connected to the abrasive disc so that the abrasive disc rotates in conjunction with the abrasive disc, the end remote from the body holder of the first support being the first drive. Connected to the drive.

Further, the floor polishing machine further includes a second driving device, which is installed on the body holder and connected to the first moving wheel so that the first moving wheel rotates in conjunction with the first moving wheel. be done.

In addition, the floor polishing machine further includes a water box and a battery, which are installed on the body holder.

The floor grinder of the present application includes a body holder, an abrasive disc, a first travel wheel, and a second travel wheel. When the abrasive disc is in the first position and the second wheel is in the retracted position, the abrasive tool on the abrasive disc is in contact with the ground and the second wheel is not in contact with the ground. At this time, the floor sander can sand the ground. When the abrasive disk is at the second position and the second moving wheel is at the running position, the abrasive disk leaves the ground at a certain height, and the second moving wheel and the first moving wheel are both in contact with the ground. Support the floor grinder. At this time, the polishing tool can be replaced, and the second moving wheel and the first moving wheel can drive the floor polishing machine to run. As can be seen from this, the floor sanding machine can easily replace the sanding tool, solving the conventional work method in which the sanding tool cannot be replaced without manually moving the machine, and reducing the labor intensity of the operator. can be reduced to improve work efficiency. In addition, the floor polisher does not need to tilt the entire device when replacing the polishing tool, that is, there is no tilting due to the main body holder and additional parts such as the water box installed thereon, and the water in the water box does not need to be tilted. does not cause overflow. In addition, since the position of the main body holder does not change, it becomes easy to hang a large industrial vacuum cleaner outside. In addition, the floor polisher can be easily moved when changing places, saving time and labor.

The drawings in the specification, which form part of the present application, are used for a further understanding of the present application, and the schematic examples of the present application and their descriptions are used for the interpretation of the present application and are not intended to unduly limit the present application. do not have.

1 shows a schematic diagram of a floor sanding machine of the present application in a first working state; FIG. 2 shows a side view of the floor sander in FIG. 1; FIG. 2 shows a plan view of the floor sanding machine in FIG. 1; FIG. Fig. 2 shows a schematic diagram of the floor sanding machine of the present application in a second working state; Figure 5 shows a side view of the floor sander in Figure 4; Figure 5 shows a plan view of the floor sander in Figure 4;

It should be explained that the embodiments in this application and the features in the embodiments can be combined with each other unless contradicted. The present application will be described in detail below by combining embodiments with reference to the drawings.

The present application provides a floor sanding machine, referring to FIGS. 1 to 6, the floor sanding machine includes a main body holder 10 and a first position connected to the main body holder 10 for sanding the ground and installed thereon. a polishing disc 20 having a second position for exchanging the polishing tool 30 to be used and installed switchably between the first position and the second position; and a first moving wheel 40 installed on the main holder 10. , a second moving wheel 50 connected to the main body holder 10 and having a running position to move along the ground and a retracted position away from the ground, and is installed switchably between the running position and the retracted position, and polishes the floor. The machine has a first working state for sanding the ground and a second working state for traveling or changing the sanding tool 30, with the sanding disc 20 in the first position and the second wheel 50 retracted. When in position, the floor sander is in the first working state, and when the abrasive disc 20 is in the second position and the second wheel 50 is in the travel position, the floor sanding machine is in the second working state.

The floor grinder of the present application includes a body holder 10, a grinding disc 20, a first moving wheel 40, and a second moving wheel 50. When the abrasive disk 20 is in the first position and the second wheel 50 is in the retracted position, the abrasive tool 30 on the abrasive disk 20 contacts the ground and the second wheel 50 does not contact the ground. At this time, the floor sander can sand the ground. When the abrasive disk 20 is at the second position and the second moving wheel 50 is at the running position, the abrasive disk 20 leaves the ground at a certain height, and the second moving wheel 50 and the first moving wheel 40 are both on the ground. supports the floor sander in contact with the At this time, the polishing tool 30 can be replaced, and the second moving wheel 50 and the first moving wheel 40 can drive the floor polishing machine to run. As can be seen from this, the floor sanding machine can easily replace the sanding tool, solving the conventional work method in which the sanding tool cannot be replaced without manually moving the machine, and reducing the labor intensity of the operator. can be reduced to improve work efficiency. In addition, the floor polisher does not need to tilt the entire device when replacing the polishing tool, that is, there is no tilting due to the main body holder and additional parts such as the water box installed thereon, and the water in the water box does not need to be tilted. does not cause overflow. In addition, since the position of the main body holder does not change, it becomes easy to hang a large industrial vacuum cleaner outside. In addition, the floor polisher can be easily moved when changing places, saving time and labor.

Specifically, when the abrasive disc 20 is in the first position, the abrasive disc 20 is used to polish the ground, with the polishing edge of the abrasive disc 20 being parallel or nearly parallel to the ground. When the abrasive disc 20 is in the second position, the abrasive disc 20 leaves a certain height from the ground, and the polishing edge of the abrasive disc 20 is inclined with respect to the ground.

Specifically, the abrasive tool 30 is a bit or abrasive plate, and the abrasive tool 30 is fixed to the bottom of the abrasive disc 20 . Both the bit and the polishing plate are consumables and must be replaced on a regular basis. Among them, the bit is used for rough polishing, and the polishing plate is used for fine polishing.

In this embodiment, the floor polisher further includes an extension 60 . The telescoping device 60 is connected to both the main body holder 10 and the abrasive disc 20, and is at least partially telescopically installed so as to drive the abrasive disc 20 to switch between the first position and the second position.

In this embodiment, the floor polisher further includes a first support 70 . A first connection end of the first support 70 is jointly connected to the abrasive disc 20 , and a second connection end of the first support 70 is jointly connected to the body holder 10 . The elastic device 60 is jointly connected to the first support device 70, and the connection part with the first support device 70 is located between the first connection end and the second connection end. With such installation, the abrasive disc 20 is driven by the telescoping device 60 and the first support 70 to swing within a predetermined angle.

In this embodiment, the first support 70 includes a first support 71 and a second support 72, and the first support 71 and the second support 72 form an angle with each other. Installed. The first support portion 71 has one end connected to the second support portion 72 and the other end jointly connected to the abrasive disc 20 . An end portion of the second support portion 72 away from the first support portion 71 is joint-connected to the main body holder 10 . The telescoping device 60 is jointly connected to either the first support 71 or the body holder 10 so that the abrasive disc 20 rotates around the joint of the second support 72 and the body holder 10 .

Specifically, the first support portion 71 and the second support portion 72 are installed at a predetermined angle.

Specifically, the first support 71 is jointly connected to the abrasive disk 20 by a first connection shaft 140 so that the first support 70 can swing up and down around the second connection shaft 150, and the second The support portion 72 is joint-connected to the main body holder 10 by the second connection shaft 150 .

In this embodiment, the telescopic device 60 has a fixed part 61 and an elastic part 62, and the elastic part 62 is connected to the fixed part 61 and installed to be telescopic with respect to the fixed part 61. As shown in FIG. The expandable part 62 is jointly connected to the body holder 10 , and the fixed part 61 is jointly connected to the polishing disk 20 .

Specifically, the fixed portion 61 is joint-connected to the first support portion 71 by the third connection shaft 160 , and the expandable portion 62 is joint-connected to the main body holder 10 by the fourth connection shaft 170 .

Specifically, the telescopic device 60 is an electric cylinder, a hydraulic cylinder, or a manual screw.

In this embodiment, the floor polisher further includes a second support 80 . One end of the second support 80 is connected to the body holder 10 , and the second moving wheel 50 is provided at the other end of the second support 80 . The second support 80 is rotatably installed with respect to the main body holder 10 so as to drive the second moving wheel 50 and switch between the running position and the retracted position.

Specifically, the second support 80 is connected to the body holder 10 by a fifth connection shaft 180 so as to rotate around the fifth connection shaft 180 .

In this embodiment, the floor polisher further includes a locking portion 90 . The locking part 90 is installed on the main body holder 10 and used to lock or unlock the second support 80 and the main body holder 10 so as to fix their mutual positions.

Specifically, the locking portion 90 is an elastic pin. This installation facilitates locking and unlocking of the second support 80 .

In this embodiment, the floor sanding machine further includes a first driving device 100 . A first drive 100 is drivingly connected with the abrasive disc 20 to drive the abrasive disc 20 into rotation. Here, the end of the first support 70 remote from the main body holder 10 is connected to the first drive device 100 .

Specifically, the first driving device 100 is an electric motor.

In this embodiment, the floor sanding machine further includes a second driving device 110 . The second driving device 110 is installed on the body holder 10 and connected to the first moving wheel 40 so as to drive the first moving wheel 40 to rotate. With such an installation, the floor grinder is driven by the first moving wheel 40 to run. That is, the first moving wheel 40 becomes a driving wheel.

Specifically, the second moving wheel 50 is a swivel wheel.

Specifically, the second drive device 110 is an electric motor.

In this embodiment, the floor polisher further includes a water box 120 and a battery 130 . Both the water box 120 and the battery 130 are installed in the body holder 10 . Such installation ensures that the water in the water box 120 does not overflow, and the battery 130 is used to power the second driving device 110 .

In the specific implementation, as shown in FIG. 1, when the floor sanding machine is in the first working state, the second support is on the upper left of the body holder and is locked by the elastic pin, thereby: The second support and body holder are fixed relative to each other. At this time, the electric cylinder (or telescoping device) is fully extended and the abrasive disc and bit (or abrasive plate) on it are in direct contact with the ground. As the first drive rotates, it drives the abrasive disc and a bit (or abrasive plate) is driven onto the abrasive disc to grind the ground.

In the specific implementation, as shown in FIG. 4, when the floor sanding machine is in the second working state, the second support is on the lower left side of the main body holder and locked by the elastic pin, so that: The second support and body holder are fixed relative to each other. The second moving wheel then contacts the ground. At this time, the electric cylinder is fully retracted and the grinding disc and bit (or grinding plate) above it are not in contact with the ground and are at a certain height away from the ground. The bit (or abrasive plate) at the bottom of the abrasive disc can then be replaced very easily. At this time, only the polishing disc, the first driving device, and the first support are tilted, and the main body holder is still in the horizontal state, which is consistent with the state when the floor polishing machine polishes. Therefore, the water box attached to the main body holder is also in a horizontal state, and water does not overflow when the polishing disc is pulled up, which is advantageous for hanging the vacuum cleaner outside the rear of the floor polishing machine.

When the operator replaces the bit (or polishing plate), that is, when the state shown in FIG. 1 is to be changed to the state shown in FIG. 1 to 4 around the five connecting shafts, and then insert elastic pins to fix the second support and the body holder. Next, the electric cylinder is actuated to retract, thereby causing the abrasive disc to swing upward about the second connecting axis together with the first support. When the electric cylinder is fully retracted, as shown in FIG. 4, motion of the abrasive disc stops and the lift is completed. At this time, it can be used to easily replace the bit (or grinding plate) or to automatically change the location of the equipment, i.e., automatically change from one construction site to another. is.

When the operator finishes exchanging the bit (or polishing plate) and wants to continue polishing, that is, when the state of FIG. 4 changes to that of FIG. The disk will swing downward about the second connecting axis together with the first support. When the electric cylinder is fully extended, the bit (or grinding plate) on the grinding disk will come into contact with the ground, and will come out of the elastic pin fixed with the body holder to connect the first support to the fifth connecting shaft. 4 from the state shown in FIG. 4 to the state shown in FIG. 1, and insert the elastic pin, thereby fixing the first support member and the main body holder as shown in FIG.

When an operator wants to transfer the floor sander from one work point to another work point, for example, from basement floor 1 to basement floor 2, the floor sander in the present application is equipped with a running battery and a second floor. Since it is equipped with two driving devices, after adjusting the floor sanding machine to the state shown in FIG. Since there is no need to transport the device by an external vehicle, and there is no need for people to move the device, it is possible to save time and labor when changing locations.

The telescoping device of the floor sander of the present application can automatically lift the sanding disc to the second position, allowing the operator to comfortably change the bit or sanding plate. The telescoping device automatically lowers the abrasive disc to the ground after a bit or abrasive plate change is complete. During the whole process, the position of the main body holder of the floor polishing machine does not change, the operation is simple and labor-saving, and the parts such as the water box attached to the main body holder do not tilt, so the water fountain spray of the floor polishing machine It is advantageous for frequent use such as functional and externally hung industrial vacuum cleaners.

The floor polishing machine of the present application can automatically travel when changing places, so it does not need to be pushed by a person, saving time and labor.

From the above description, it can be seen that the above embodiments of the present application have the following technical effects.

The floor grinder of the present application includes a body holder 10 , a grinding disc 20 , a first moving wheel 40 and a second moving wheel 50 . When the abrasive disk 20 is in the first position and the second wheel 50 is in the retracted position, the abrasive tool 30 on the abrasive disk 20 contacts the ground and the second wheel 50 does not contact the ground. At this time, the floor sander can sand the ground. When the abrasive disk 20 is at the second position and the second moving wheel 50 is at the running position, the abrasive disk 20 leaves the ground at a certain height, and the second moving wheel 50 and the first moving wheel 40 are both on the ground. supports the floor sander in contact with the At this time, the polishing tool 30 can be replaced, and the second moving wheel 50 and the first moving wheel 40 can also drive the floor polishing machine to run. As can be seen from this, the floor sanding machine can easily replace the sanding tool, solving the conventional work method in which the sanding tool cannot be replaced without manually moving the machine, and reducing the labor intensity of the operator. can be reduced to improve work efficiency. In addition, the floor polisher does not need to tilt the entire device when replacing the polishing tool, that is, there is no tilting due to the main body holder and additional parts such as the water box installed thereon, and the water in the water box does not need to be tilted. does not cause overflow. In addition, since the position of the main body holder does not change, it becomes easy to hang a large industrial vacuum cleaner outside. In addition, the floor polisher can be easily moved when changing places, saving time and labor.

The above are only preferred embodiments of the present application and are not intended to limit the present application, and the present application may have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall all fall within the protection scope of the present application.

Claims (9)

A floor sanding machine,
body holder,
a polishing disc connected to the main body holder, having a first position for polishing the ground and a second position for exchanging the polishing tool, and installed switchably between the first position and the second position;
a first moving wheel installed on the body holder;
a second moving wheel connected to the main body holder, having a running position moving along the ground and a retracted position away from the ground, and installed switchably between the running position and the retracted position;
The floor sanding machine has a first working state of sanding the ground and a second working state of traveling or replacing the sanding tool, wherein the sanding disc is in the first position and the second wheel is retracted. position, the floor sander is in a first working state, and when the abrasive disc is in the second position and the second travel wheel is in the running position, the floor sander is in the second working state. become a state,
The floor polisher further includes a second support,
one end of the second support is connected to the body holder, the second moving wheel is installed at the other end of the second support;
The second support is rotatably installed in a vertical plane with respect to the body holder so as to switch the second moving wheel between the running position and the retracted position in conjunction with the second moving wheel,
When the second support is interlocked with the second moving wheel and rotates in a vertical plane so as to switch the second moving wheel between the running position and the retracted position, the positional state of the body holder changes. do not
A floor polishing machine characterized by: The floor polisher further includes an elastic device,
The telescoping device is connected to the main body holder and the abrasive disc, and is at least partially telescopically installed so as to switch the abrasive disc between the first position and the second position in conjunction with the abrasive disc. ,
The abrasive disc is in the first position and is in contact with the ground when the telescoping device is in the extended state, and the abrasive disc is in the second position and is in contact with the ground when the telescoping device is in the contracted state. 2. A floor sander according to claim 1, wherein the floor sander is spaced apart from the . The floor sander further comprises a first support having a first connection end jointed to the abrasive disc and a second connection end jointed to the main body holder,
The telescoping device is jointly connected to the first support device, and the location of connection between the telescoping device and the first support device is located between the first connecting end and the second connecting end. 3. The floor sanding machine according to claim 2, characterized in that: the first support includes a first support and a second support installed to form an angle with each other;
one end of the first support is connected to the second support and the other end is jointly connected to the abrasive disc;
an end portion of the second support part away from the first support part is joint-connected to the main body holder;
The telescoping device is jointly connected to the first support and the body holder such that the abrasive disc rotates around the connection of the second support and the body holder. The floor polisher according to claim 3. The elastic device has a fixed part and an elastic part,
the expandable part is connected to the fixed part and is installed so as to be expandable/contractible with respect to the fixed part;
The telescopic part is connected to the main body holder,
3. A floor sander according to claim 2, wherein the fixed portion is connected to the abrasive disc. The floor polisher further includes a lock unit,
The floor according to claim 1 , wherein the locking part is installed on the main body holder to lock or unlock the second support and the main body holder so as to fix their mutual positions. Polishing machine. the floor sander further comprising a first drive drivingly connected to the abrasive disc such that the abrasive disc rotates in conjunction with the abrasive disc;
4. A floor sander according to claim 3, wherein the end of said first support remote from said body holder is connected to said first drive. The floor polisher further includes a second drive,
2. The second driving device is installed on the main body holder and connected to the first moving wheel so that the first moving wheel rotates in conjunction with the first moving wheel. The floor sanding machine described in . the floor polisher further comprising a water box and a battery;
The floor polisher according to any one of claims 1 to 8 , wherein the water box and the battery are installed in the body holder.

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