阅读说明：本技术 地坪研磨机 (Terrace grinder ) 是由 周献华 李雁峰 张坤 于 2020-04-13 设计创作，主要内容包括：本发明提供了一种地坪研磨机,包括：主体支架；磨盘,与主体支架连接,磨盘具有用于研磨地面的第一位置和用于更换设置在其上的研磨件的第二位置；第一移动轮,设置在主体支架上；第二移动轮,与主体支架连接,第二移动轮具有沿地面移动的行走位置和远离地面的避让位置；其中,地坪研磨机具有用于研磨地面的第一工作状态和用于行驶或更换研磨件的第二工作状态,在磨盘处于第一位置且第二移动轮处于避让位置时,地坪研磨机处于第一工作状态；在磨盘处于第二位置且第二移动轮处于行走位置时,地坪研磨机处于第二工作状态。本发明的地坪研磨机解决了现有技术中的地坪研磨机不便于更换刀头且不便移动的问题。(The present invention provides a terrace grinder, comprising: a main body support; a grinding disc connected with the main body bracket, wherein the grinding disc is provided with a first position for grinding the ground and a second position for replacing the grinding piece arranged on the grinding disc; the first moving wheel is arranged on the main body bracket; the second moving wheel is connected with the main body bracket and is provided with a walking position moving along the ground and an avoiding position far away from the ground; the floor grinding machine has a first working state for grinding the ground and a second working state for driving or replacing the grinding piece, and is in the first working state when the grinding disc is in the first position and the second moving wheel is in the avoiding position; when the grinding disc is at the second position and the second movable wheel is at the walking position, the floor grinding machine is in a second working state. The floor grinding machine solves the problems that a tool bit of the floor grinding machine in the prior art is inconvenient to replace and move.)

1. A floor grinding machine, comprising:

a main body support;

a grinding disc connected with the main body bracket, wherein the grinding disc is provided with a first position for grinding the ground and a second position for replacing the grinding piece arranged on the grinding disc, and the grinding disc is switchably arranged between the first position and the second position;

the first moving wheel is arranged on the main body bracket;

the second moving wheel is connected with the main body support, the second moving wheel is provided with a walking position moving along the ground and an avoiding position far away from the ground, and the second moving wheel is arranged between the walking position and the avoiding position in a switchable manner;

wherein the floor grinding machine has a first operating state for grinding the ground and a second operating state for driving or replacing the grinding member, the floor grinding machine being in the first operating state when the grinding disc is in the first position and the second moving wheel is in the avoiding position; when the grinding disc is in the second position and the second movable wheel is in the walking position, the floor grinding machine is in the second working state.

2. The floor grinding machine of claim 1, further comprising:

the telescopic piece is connected with the main body support and the grinding disc, and at least part of the telescopic piece is arranged in a telescopic mode so as to drive the grinding disc to be switched between the first position and the second position.

3. The floor grinding machine of claim 2, further comprising:

the first connecting end of the first supporting piece is hinged with the grinding disc, and the second connecting end of the first supporting piece is hinged with the main body bracket; the telescopic piece is hinged with the first supporting piece, and the joint of the telescopic piece and the first supporting piece is positioned between the first connecting end and the second connecting end.

4. The floor grinding machine of claim 3, wherein the first support includes a first support and a second support, the first support and the second support being obliquely disposed; one end of the first supporting part is connected with the second supporting part, and the other end of the first supporting part is hinged with the grinding disc; one end of the second supporting part, which is far away from the first supporting part, is hinged with the main body bracket; the extensible member with first supporting part with the main part support is all articulated, so that the mill coil rotate the second supporting part with the junction of main part support rotates.

5. The floor grinding machine of claim 2, wherein the extension member has a fixed portion and an extension portion, the extension portion is connected with the fixed portion and telescopically disposed with respect to the fixed portion, the extension portion is connected with the main body bracket, and the fixed portion is connected with the grinding disc.

6. The floor grinding machine of claim 1, further comprising:

one end of the second supporting piece is connected with the main body bracket, and the second moving wheel is arranged at the other end of the second supporting piece; the second supporting piece is rotatably arranged relative to the main body support so as to drive the second moving wheel to switch between the walking position and the avoiding position.

7. The floor grinding machine of claim 6, further comprising:

and the locking part is arranged on the main body bracket and used for locking or unlocking the second supporting piece and the main body bracket.

8. The floor grinding machine of claim 3, further comprising:

the first driving device is in driving connection with the grinding disc so as to drive the grinding disc to rotate;

wherein, the end of the first supporting piece far away from the main body bracket is connected with the first driving device.

9. The floor grinding machine of claim 1, further comprising:

and the second driving device is arranged on the main body support and is connected with the first moving wheel so as to drive the first moving wheel to rotate.

10. A floor grinding machine according to any one of claims 1 to 9, characterized in that it further comprises a water tank and a storage battery, both of which are provided on the main body bracket.

Technical Field

The invention relates to the field of building equipment, in particular to a terrace grinding machine.

Background

The floor grinding machine is an automatic device for grinding or polishing concrete ground, can be widely applied to floor construction of underground garages and industrial workshops, and is an indispensable device in the processes of epoxy floor construction, solidified floor construction and carborundum floor construction. The floor grinding machine is mainly used for removing laitance on the concrete surface (after the concrete is completely dried out) so as to carry out subsequent floor surface construction work. Terrace grinds the machine tool bit and can realize the terrace through changing different machine tool bits and polish or grind the function, for making the terrace grind and reach better grinding efficiency and grinding quality, to different ground quality, need often change tool bit (or abrasive disc).

At present, the general way of changing tool bit (or abrasive disc) is through the manual work pulling whole equipment for whole equipment is emptyd subaerial, then can change tool bit (or abrasive disc), and tool bit (or abrasive disc) need lift up equipment through the manual work again after having changed, but resume the state of operation, consume physical power very much. In addition, in order to improve the working efficiency, the floor grinding machine on the market at present shows a trend of increasing the working area, so that the self weight of the equipment is increased, and the weight of a plurality of equipment exceeds 500 kg. Therefore, the equipment is usually moved by a plurality of persons, which is time-consuming and labor-consuming, and even causes personal safety to the operator due to improper operation. In addition, the whole machine is moved to incline frequently due to frequent replacement of the polishing tool bit or the polishing sheet, and water in a water tank of the floor grinding machine is easy to overflow after the whole machine is inclined, so that the water tank of the floor grinding machine in the current market is in the same nominal size, and an operator usually adopts an extra water bucket to manually dry the water, which wastes time and labor.

In addition, the floor grinding machine on the market at present is usually supplied with power by a cable, and needs to be pushed by personnel in the transition process, so that the labor and the time are wasted.

Disclosure of Invention

The invention mainly aims to provide a terrace grinder, which aims to solve the problems that a tool bit of the terrace grinder in the prior art is inconvenient to replace and move.

In order to achieve the above object, the present invention provides an apron grinder including: a main body support; a grinding disc connected with the main body bracket, wherein the grinding disc is provided with a first position for grinding the ground and a second position for replacing the grinding piece arranged on the grinding disc, and the grinding disc is arranged between the first position and the second position in a switchable manner; the first moving wheel is arranged on the main body bracket; the second moving wheel is connected with the main body support, the second moving wheel is provided with a walking position moving along the ground and an avoiding position far away from the ground, and the second moving wheel can be arranged between the walking position and the avoiding position in a switchable manner; the floor grinding machine has a first working state for grinding the ground and a second working state for driving or replacing the grinding piece, and is in the first working state when the grinding disc is in the first position and the second moving wheel is in the avoiding position; when the grinding disc is at the second position and the second movable wheel is at the walking position, the floor grinding machine is in a second working state.

Further, the floor grinding machine further comprises: the extensible member is connected with the main body support and the grinding disc, and at least part of the extensible member is arranged in an extensible mode so as to drive the grinding disc to be switched between the first position and the second position.

Further, the floor grinding machine further comprises: the first connecting end of the first supporting piece is hinged with the grinding disc, and the second connecting end of the first supporting piece is hinged with the main body bracket; the telescopic piece is hinged with the first supporting piece, and the joint of the telescopic piece and the first supporting piece is positioned between the first connecting end and the second connecting end.

Further, the first support member includes a first support portion and a second support portion, the first support portion and the second support portion being disposed obliquely; one end of the first supporting part is connected with the second supporting part, and the other end of the first supporting part is hinged with the grinding disc; one end of the second supporting part, which is far away from the first supporting part, is hinged with the main body bracket; the extensible member is all articulated with first supporting part and main part support to make the mill rotate around the junction of second supporting part and main part support.

Furthermore, the extensible member has fixed part and pars contractilis, and pars contractilis is connected with the fixed part and relative fixed part telescopically sets up, and pars contractilis and main part support connection, fixed part and mill are connected.

Further, the floor grinding machine further comprises: one end of the second supporting piece is connected with the main body bracket, and the second moving wheel is arranged at the other end of the second supporting piece; the second supporting piece is rotatably arranged relative to the main body support to drive the second moving wheel to switch between a walking position and an avoiding position.

Further, the floor grinding machine further comprises: and the locking part is arranged on the main body bracket and used for locking or unlocking the second supporting piece and the main body bracket.

Further, the floor grinding machine further comprises: the first driving device is in driving connection with the grinding disc so as to drive the grinding disc to rotate; wherein, the end of the first supporting piece far away from the main body bracket is connected with the first driving device.

Further, the floor grinding machine further comprises: and the second driving device is arranged on the main body support and is connected with the first moving wheel so as to drive the first moving wheel to rotate.

Further, the terrace grinder also comprises a water tank and a storage battery, wherein the water tank and the storage battery are both arranged on the main body support.

The floor grinding machine comprises a main body bracket, a grinding disc, a first moving wheel and a second moving wheel; when the grinding disc is in the first position and the second moving wheel is in the avoiding position, the grinding piece on the grinding disc is in contact with the ground and the second moving wheel is not in contact with the ground, and at the moment, the floor grinding machine can grind the ground; when the mill is in the second position and the second removes the wheel and is in the walking position, the mill is apart from ground a take the altitude, and the second removes the wheel and contacts with ground jointly with first removal wheel to support this terrace and grind the machine, at this moment, can change grinding the piece, the second removes the wheel and can also drive the terrace and grind the machine and go with first removal wheel. Therefore, the floor grinding machine can realize convenient grinding piece replacement, so that the problem that the grinding piece can be replaced only by manually moving equipment in the prior art is solved, the labor intensity of operators is reduced, and the operation efficiency is improved; in addition, when the floor grinding machine is used for replacing grinding pieces, the whole machine does not need to be inclined, namely the main body support and accessories such as a water tank arranged on the main body support do not incline, and water in the water tank cannot overflow; and the position of the main body bracket can not be changed, so that the large-scale industrial dust collector can be hung outside conveniently; in addition, the floor grinding machine is convenient to walk during transition, and is time-saving and labor-saving.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic view of a floor grinding machine according to the invention in a first operating state;

FIG. 2 shows a side view of the floor grinding machine of FIG. 1;

FIG. 3 shows a top view of the floor grinding machine of FIG. 1;

FIG. 4 shows a schematic view of the floor grinding machine according to the invention in a second operating state;

FIG. 5 shows a side view of the floor grinding machine of FIG. 4;

fig. 6 shows a top view of the floor grinding machine of fig. 4.

Wherein the figures include the following reference numerals:

10. a main body support; 20. a grinding disc; 30. a grinding member; 40. a first moving wheel; 50. a second moving wheel; 60. a telescoping member; 61. a fixed part; 62. a telescopic part; 70. a first support member; 71. a first support section; 72. a second support portion; 80. a second support member; 90. a locking portion; 100. a first driving device; 110. a second driving device; 120. a water tank; 130. a storage battery; 140. a first connecting shaft; 150. a second connecting shaft; 160. a third connecting shaft; 170. a fourth connecting shaft; 180. and a fifth connecting shaft.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The present invention provides a terrace grinder, referring to fig. 1 to 6, including: a main body support 10; a grinding disc 20 connected to the main body frame 10, the grinding disc 20 having a first position for grinding the floor surface and a second position for replacing the grinding member 30 disposed thereon, the grinding disc 20 being switchably disposed between the first position and the second position; a first moving wheel 40 provided on the main body frame 10; a second moving wheel 50 connected to the main body frame 10, the second moving wheel 50 having a traveling position moving along the ground and an escape position distant from the ground, the second moving wheel 50 being switchably provided between the traveling position and the escape position; wherein the floor grinder has a first working state for grinding the ground and a second working state for driving or replacing the grinding member 30, the floor grinder being in the first working state when the grinding disc 20 is in the first position and the second moving wheel 50 is in the avoiding position; when the grinding disc 20 is in the second position and the second moving wheel 50 is in the walking position, the floor grinding machine is in the second working state.

The floor grinding machine of the present invention comprises a main body frame 10, a grinding disc 20, a first moving wheel 40, a second moving wheel 50; when the grinding disc 20 is in the first position and the second moving wheel 50 is in the avoiding position, the grinding piece 30 on the grinding disc 20 is in contact with the ground and the second moving wheel 50 is not in contact with the ground, and at the moment, the floor grinding machine can grind the ground; when mill 20 is in the second position and second movable wheel 50 is in the walking position, mill 20 is apart from ground a take the altitude, and second movable wheel 50 and first movable wheel 40 contact with ground jointly to support this terrace grinder, at this moment, can change grinding member 30, second movable wheel 50 and first movable wheel 40 can also drive the terrace grinder and travel. Therefore, the floor grinding machine can realize convenient grinding piece replacement, so that the problem that the grinding piece can be replaced only by manually moving equipment in the prior art is solved, the labor intensity of operators is reduced, and the operation efficiency is improved; in addition, when the floor grinding machine is used for replacing grinding pieces, the whole machine does not need to be inclined, namely the main body support and accessories such as a water tank arranged on the main body support do not incline, and water in the water tank cannot overflow; and the position of the main body bracket can not be changed, so that the large-scale industrial dust collector can be hung outside conveniently; in addition, the floor grinding machine is convenient to walk during transition, and is time-saving and labor-saving.

Specifically, when the grinding disc 20 is in the first position, the grinding disc 20 is used to grind the ground, when the grinding end of the grinding disc 20 is in a parallel or nearly parallel position with the ground; when the grinding disc 20 is in the second position, the grinding disc 20 is at a certain height from the ground, and the grinding end of the grinding disc 20 is inclined to the ground.

Specifically, the grinding member 30 is a tool bit or a grinding sheet, and the grinding member 30 is fixed at the bottom of the grinding disc 20; the tool bit and the grinding sheet are both consumable products and need to be replaced frequently. Wherein the tool bit is used for rough grinding, and the grinding sheet is used for fine grinding.

In this embodiment, the floor grinding machine further comprises a telescopic member 60, the telescopic member 60 is connected to both the main body support 10 and the grinding disc 20, and at least a portion of the telescopic member 60 is telescopically arranged to move the grinding disc 20 between the first position and the second position.

In this embodiment, the floor grinding machine further includes a first support 70, a first connection end of the first support 70 is hinged to the grinding disc 20, and a second connection end of the first support 70 is hinged to the main body bracket 10; the telescopic member 60 is hinged to the first support member 70, and the connection point of the telescopic member 60 and the first support member 70 is located between the first connection end and the second connection end. This arrangement causes extension 60 and first support 70 to oscillate abrasive disc 20 through a predetermined angle.

In the present 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 are obliquely disposed; one end of the first supporting part 71 is connected with the second supporting part 72, and the other end of the first supporting part 71 is hinged with the grinding disc 20; one end of the second supporting part 72 far away from the first supporting part 71 is hinged with the main body bracket 10; the extension member 60 is hinged to both the first support 71 and the main body frame 10 to allow the grinding disc 20 to rotate about the junction of the second support 72 and the main body frame 10.

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

Specifically, the first support portion 71 is hinged to the grinding disc 20 through a first connecting shaft 140, and the second support portion 72 is hinged to the main body bracket 10 through a second connecting shaft 150, so that the first support 70 swings up and down around the second connecting shaft 150.

In this embodiment, the extensible member 60 has a fixed portion 61 and an extensible portion 62, the extensible portion 62 is connected to the fixed portion 61 and is telescopically disposed with respect to the fixed portion 61, the extensible portion 62 is hinged to the main body bracket 10, and the fixed portion 61 is hinged to the grinding disc 20.

Specifically, the fixing portion 61 is hinged to the first support portion 71 by a third connecting shaft 160, and the expansion portion 62 is hinged to the main body frame 10 by a fourth connecting shaft 170.

Specifically, the telescopic member 60 is an electric cylinder or a hydraulic cylinder or a manual lead screw, and the telescopic member 60 has a telescopic function and can bear tension and pressure.

In this embodiment, the floor grinding machine further includes a second support member 80, one end of the second support member 80 is connected to the main body frame 10, and the second moving wheel 50 is provided at the other end of the second support member 80; the second supporting member 80 is rotatably disposed relative to the main body frame 10 to drive the second moving wheel 50 to switch between the traveling position and the avoiding position.

Specifically, the second supporter 80 is connected to the body bracket 10 by a fifth connecting shaft 180 so that the second supporter 80 rotates about the fifth connecting shaft 180.

In this embodiment, the floor grinding machine further includes a locking portion 90, the locking portion 90 being provided on the main body frame 10, the locking portion 90 being used to lock or unlock the second supporting member 80 with the main body frame 10.

Specifically, the locking portion 90 is an elastic pin, and this arrangement makes both locking and unlocking of the second support 80 easy.

In this embodiment, the floor grinding machine further includes a first driving device 100, the first driving device 100 is in driving connection with the grinding disc 20 to drive the grinding disc 20 to rotate; wherein, one end of the first supporting member 70 away from the main body frame 10 is connected to the first driving device 100.

Specifically, the first driving device 100 is a motor.

In this embodiment, the floor grinding machine further includes a second driving device 110, the second driving device 110 is disposed on the main body frame 10, and the second driving device 110 is connected to the first moving wheel 40 to drive the first moving wheel 40 to rotate. Such an arrangement may enable the first moving wheel 40 to drive the floor grinding machine, i.e. the first moving wheel 40 is a driving wheel.

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

Specifically, the second driving device 110 is a motor.

In this embodiment, the floor grinder further includes a water tank 120 and a storage battery 130, and both the water tank 120 and the storage battery 130 are disposed on the main body frame 10. Such an arrangement ensures that the water in the water tank 120 does not overflow and the accumulator 130 can be used to power the second driving means 110.

In specific implementation, as shown in fig. 1, when the floor grinding machine is in the first working state, the second supporting member is located at the upper left of the main body bracket and is locked by the elastic pin, so that the second supporting member and the main body bracket are relatively fixed. At the moment, the electric cylinder (i.e. the telescopic part) is in a fully extended state, the grinding disc and the tool bit (or the grinding sheet) on the grinding disc are directly contacted with the ground, when the first driving device rotates, the grinding disc is driven, and the grinding disc drives the tool bit (or the grinding sheet) to grind the ground.

In specific implementation, as shown in fig. 4, when the floor grinding machine is in the second working state, the second supporting member is located at the lower left of the main body frame and is locked by the elastic pin, so that the second supporting member and the main body frame are relatively fixed, and the second moving wheel contacts with the ground. At the moment, the electric cylinder is in a fully contracted state, and the grinding disc and the tool bit (or the grinding sheet) on the grinding disc are not in contact with the ground and are at a certain height away from the ground. The tool bit (or the grinding sheet) at the bottom of the grinding disc can be replaced very conveniently. At this time, only the positions of the grinding disc, the first driving device and the first supporting piece are inclined, but the main body bracket is in the same state as the ground state of the floor grinding machine and still in the horizontal state. Therefore, the water tank arranged on the main body bracket is also in a horizontal state, the water tank can not overflow due to the lifting of the grinding disc, and the external dust collector at the rear part of the floor grinding machine is convenient.

When the operator needs to replace the cutter head (or the grinding sheet), i.e. when the operator turns from the state shown in fig. 1 to the state shown in fig. 4, the elastic pin fixed with the main body bracket needs to be pulled out, the second supporting member swings around the fifth connecting shaft from the state shown in fig. 1 to the state shown in fig. 4, and then the elastic pin is inserted, so that the second supporting member and the main body bracket are fixed together. Then the electric cylinder is operated to retract, the grinding disc and the first support swing upwards around the second connecting shaft, when the electric cylinder is fully retracted, the grinding disc stops moving, and the lifting is completed, as shown in fig. 4. At this time, the cutter head (or the grinding sheet) can be conveniently replaced, or the machine can be used for automatic transition walking, namely, the machine can be automatically transferred from one construction site to another construction site.

When the operator finishes replacing the cutter head (or the grinding sheet) and needs to continue grinding, namely, when the operator turns to the figure 1 from the state of figure 4, the electric cylinder needs to be operated to extend outwards, the grinding disc and the first supporting piece swing downwards around the second connecting shaft, when the electric cylinder extends completely, the cutter head (or the grinding sheet) on the grinding disc is in contact with the ground, the elastic pin fixed with the main body bracket is pulled out, the first supporting piece swings to the state of figure 1 from the state of figure 4 around the fifth connecting shaft, and the elastic pin is inserted, so that the first supporting piece and the main body bracket are fixed together, as shown in figure 1.

When the operator need shift to another region from an operation point with terrace grinder, if storehouse burden first floor changes to storehouse burden second floor, because terrace grinder in this application is furnished with the battery and the second drive arrangement of walking, only need grind the machine adjustment with the terrace to the figure 4 state after, start walking switch, terrace grinder just can automatic remote walking, neither needs outside vehicle to transport, need not the manual work again and is pushing away equipment and remove, changes labour saving and time saving.

The utility model provides a terrace grinder's extensible member can promote the mill to the second position automatically, the tool bit or abrasive disc can easily be changed to the operative hand, after tool bit or abrasive disc change completion, the extensible member can descend the mill to ground automatically, whole process, terrace grinder's main part support position state can not change, easy operation is laborsaving, parts such as the water tank of installing on the main part support also can not incline, consequently, be convenient for fine use terrace grinder's water spray spraying function and external industry dust catcher etc..

The utility model provides a terrace grinder can walk automatically when the transition, need not artifical promotion, labour saving and time saving.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the floor grinding machine of the present invention comprises a main body frame 10, a grinding disc 20, a first moving wheel 40, a second moving wheel 50; when the grinding disc 20 is in the first position and the second moving wheel 50 is in the avoiding position, the grinding piece 30 on the grinding disc 20 is in contact with the ground and the second moving wheel 50 is not in contact with the ground, and at the moment, the floor grinding machine can grind the ground; when mill 20 is in the second position and second movable wheel 50 is in the walking position, mill 20 is apart from ground a take the altitude, and second movable wheel 50 and first movable wheel 40 contact with ground jointly to support this terrace grinder, at this moment, can change grinding member 30, second movable wheel 50 and first movable wheel 40 can also drive the terrace grinder and travel. Therefore, the floor grinding machine can realize convenient grinding piece replacement, so that the problem that the grinding piece can be replaced only by manually moving equipment in the prior art is solved, the labor intensity of operators is reduced, and the operation efficiency is improved; in addition, when the floor grinding machine is used for replacing grinding pieces, the whole machine does not need to be inclined, namely the main body support and accessories such as a water tank arranged on the main body support do not incline, and water in the water tank cannot overflow; and the position of the main body bracket can not be changed, so that the large-scale industrial dust collector can be hung outside conveniently; in addition, the floor grinding machine is convenient to walk during transition, and is time-saving and labor-saving.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.