阅读说明：本技术 辅助锚护装置 (Auxiliary anchoring device ) 是由 仇卫建 丁永成 陈明建 弓旭峰 左岗永 张小峰 王威 阎志伟 杜玉祥 张维果 刘 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种辅助锚护装置,所述辅助锚护装置包括滑槽、滑座、支撑臂和辅助作业平台,所述滑槽包括第一侧板、第二侧板和底板,所述第一侧板和所述第二侧板上均设有第一凸出部,所述滑座包括连接板、第三侧板、第四侧板和第五侧板,所述第三侧板和所述第四侧板上均设有第二凸出部所述第二凸出部与所述连接板之间形成间隙,所述第一凸出部配合在所述间隙内,所述滑座在所述底板的长度方向位置可调,所述支撑臂的下端与所述第五侧板枢接,所述支撑臂的长度可调,所述支撑臂上设有第一驱动件以驱动所述支撑臂绕所述第五侧板枢转,所述辅助作业平台与所述支撑臂的上端枢接。本发明的辅助锚护装置具有适应性强、支护范围大、作业效率高的特点。(The invention discloses an auxiliary anchoring device, which comprises a sliding chute, a sliding seat, a supporting arm and an auxiliary operation platform, the chute comprises a first side plate, a second side plate and a bottom plate, wherein the first side plate and the second side plate are both provided with a first bulge, the sliding seat comprises a connecting plate, a third side plate, a fourth side plate and a fifth side plate, wherein a second convex part is arranged on each of the third side plate and the fourth side plate, a gap is formed between each second convex part and the connecting plate, the first bulge is matched in the gap, the position of the sliding seat in the length direction of the bottom plate is adjustable, the lower end of the supporting arm is pivoted with the fifth side plate, the length of the supporting arm is adjustable, a first driving piece is arranged on the supporting arm to drive the supporting arm to pivot around the fifth side plate, and the auxiliary operation platform is pivoted with the upper end of the supporting arm. The auxiliary anchoring and protecting device has the characteristics of strong adaptability, wide supporting range and high operating efficiency.)

1. An auxiliary anchoring device, comprising:

the sliding groove comprises a first side plate, a second side plate and a bottom plate, the first side plate and the second side plate are respectively connected with the bottom plate and are oppositely arranged in the width direction of the bottom plate, first protruding parts are arranged on the first side plate and the second side plate, and the first protruding parts extend outwards in the width direction of the bottom plate;

the sliding seat comprises a connecting plate, a third side plate, a fourth side plate and a fifth side plate, the third side plate and the fourth side plate are oppositely arranged in the width direction of the bottom plate, the connecting plate is arranged between the third side plate and the fourth side plate and is respectively connected with the third side plate and the fourth side plate, the extending direction of the connecting plate is parallel to the extending direction of the bottom plate, one end of the fifth side plate is connected with the third side plate, the other end of the fifth side plate is connected with the fourth side plate, the extending direction of the fifth side plate is orthogonal to the length direction of the bottom plate, second protruding parts are arranged on the third side plate and the fourth side plate, the second protruding parts extend inwards in the width direction of the bottom plate, a gap is formed between each second protruding part and the connecting plate, and the first protruding parts are matched in the gap, the sliding seat is adjustable in position in the length direction of the bottom plate;

the lower end of the supporting arm is pivoted with the fifth side plate, the length of the supporting arm is adjustable, a first driving piece is arranged on the supporting arm, one end of the first driving piece is hinged with the supporting arm, and the other end of the first driving piece is pivoted with the fifth side plate so as to drive the supporting arm to pivot around the fifth side plate;

the auxiliary operation platform, the auxiliary operation platform with the upper end pin joint of support arm, be equipped with the second driving piece on the support arm, the one end of second driving piece with the support arm is articulated, the other end with the auxiliary operation platform pin joint, in order to drive the auxiliary operation platform winds the support arm pivot.

2. The auxiliary anchoring device according to claim 1, further comprising a driving motor provided on the connecting plate to drive the carriage to move in a longitudinal direction of the base plate.

3. The auxiliary anchoring device as claimed in claim 2, wherein the first side plate and the second side plate are both provided with a rack, the driving motor is provided with a driving gear, the driving gear is engaged with the rack, and the driving gear is connected to a rotating end of the driving motor to drive the driving motor to move in a length direction of the bottom plate.

4. The auxiliary anchoring device according to claim 1, further comprising a first end surface and a second end surface, wherein the first end surface and the second end surface are respectively connected with the first side plate and the second side plate and are oppositely arranged in the length direction of the bottom plate, the fifth side plate is provided with a stopping portion, the stopping portion extends downwards, and the lowest point of the stopping portion is lower than the highest point of the first end surface.

5. The auxiliary anchoring device according to claim 1, further comprising a first mounting base and a second mounting base, wherein the first mounting base is disposed on the fifth side plate and pivotally connected to the lower end of the supporting arm, and the second mounting base is disposed on the auxiliary working platform and pivotally connected to the upper end of the supporting arm.

6. The auxiliary anchoring device according to claim 5, wherein the first mounting base is provided with a first supporting lug and a second supporting lug, the first supporting lug is located below the second supporting lug, the first driving member is hinged to the first supporting lug, the lower end of the supporting arm is pivoted to the second supporting lug, the second mounting base is provided with a third supporting lug and a fourth supporting lug, the fourth supporting lug is located below the third supporting lug, the second driving member is hinged to the fourth supporting lug, and the upper end of the supporting arm is pivoted to the third supporting lug.

7. The auxiliary anchoring device according to claim 6, further comprising a plurality of articulated seats, wherein the plurality of articulated seats are respectively connected to the first driving member and the first lug, the lower end of the supporting arm and the second lug, the second driving member and the fourth lug, and the upper end of the supporting arm and the third lug,

one end of the hinged seat is hinged to the first support lug or the second support lug or the third support lug or the fourth support lug along a first direction, the other end of the hinged seat is hinged to the first driving piece or the second driving piece or the upper end of the support arm or the lower end of the support arm along a second direction, and the first direction is perpendicular to the second direction.

8. An auxiliary anchoring device according to claim 1, wherein the support arm comprises a first sleeve and a second sleeve, the first sleeve being arranged around the second sleeve, the second sleeve being extendable along the length of the first sleeve.

9. The auxiliary anchorage device according to claim 1, wherein the first driving member and the second driving member are both telescopic cylinders.

10. The auxiliary anchorage device according to any one of claims 1 to 9, further comprising a control device connected to the first drive member, the second drive member and the drive motor for controlling the opening and closing of the first drive member, the second drive member and the drive motor.

Technical Field

The invention relates to the technical field of coal mining, in particular to an auxiliary anchoring and protecting device.

Background

At present, the operation process of roadway anchor cable support operation is complex, the number of links needing manual operation of operators is large, the operators cannot directly follow the roof-bolter to operate, the labor intensity is high, the workload is high, and the operation efficiency is low.

Disclosure of Invention

The present invention is based on the discovery and recognition by the inventors of the following facts and problems:

the anchor rod and anchor cable drill carriage used at present has the disadvantages that the supporting operation difficulty is large due to the reasons of the structure, the function range and the like of the drill carriage, the links needing manual operation of operators are more, the size of the drill carriage equipment is large, the height is higher in the supporting process, the height of a drilling machine must be reduced firstly and then the operation is carried out during construction operation, the efficiency is too low, and the problems of mechanization and automation of roadway anchor cable support cannot be solved.

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the embodiment of the invention provides the auxiliary anchoring and protecting device which is movable, strong in adaptability, large in supporting range and high in operating efficiency.

The auxiliary anchoring and protecting device comprises a sliding groove, a sliding seat, a supporting arm and an auxiliary operation platform, wherein the sliding groove comprises a first side plate, a second side plate and a bottom plate, the first side plate and the second side plate are respectively connected with the bottom plate and are oppositely arranged in the width direction of the bottom plate, first protruding portions are respectively arranged on the first side plate and the second side plate and extend outwards in the width direction of the bottom plate, the sliding seat comprises a connecting plate, a third side plate, a fourth side plate and a fifth side plate, the third side plate and the fourth side plate are oppositely arranged in the width direction of the bottom plate, the connecting plate is arranged between the third side plate and the fourth side plate and is respectively connected with the third side plate and the fourth side plate, the extending direction of the connecting plate is parallel to the extending direction of the bottom plate, one end of the fifth side plate is connected with the third side plate, and the auxiliary operation platform is arranged on the sliding groove, The other end of the support arm is connected with the fourth side plate, the extending direction of the fifth side plate is orthogonal to the length direction of the bottom plate, second convex parts are arranged on the third side plate and the fourth side plate, the second convex parts extend inwards along the width direction of the bottom plate, a gap is formed between each second convex part and the corresponding connecting plate, the first convex parts are matched in the gap, the slide seat is adjustable in the length direction of the bottom plate, the lower end of the support arm is pivoted with the fifth side plate, the length of the support arm is adjustable, a first driving part is arranged on the support arm, one end of the first driving part is hinged with the support arm, the other end of the first driving part is pivoted with the fifth side plate so as to drive the support arm to pivot around the fifth side plate, the auxiliary operation platform is pivoted with the upper end of the support arm, and a second driving part is arranged on the support arm, one end of the second driving piece is hinged with the supporting arm, and the other end of the second driving piece is pivoted with the auxiliary operation platform so as to drive the auxiliary operation platform to pivot around the supporting arm.

The auxiliary anchoring and protecting device disclosed by the embodiment of the invention has the characteristics of strong adaptability, large supporting range and high operating efficiency during auxiliary anchoring and protecting operation.

In some embodiments, the auxiliary anchoring device further comprises a driving motor, and the driving motor is arranged on the connecting plate to drive the sliding seat to move in the length direction of the bottom plate.

In some embodiments, the first side plate and the second side plate are both provided with racks, the driving motor is provided with a driving gear, the driving gear is meshed with the racks, and the driving gear is connected with the rotating end of the driving motor so as to drive the driving motor to move in the length direction of the bottom plate.

In some embodiments, the auxiliary anchoring device further includes a first end surface and a second end surface, the first end surface and the second end surface are respectively connected to the first side plate and the second side plate and are oppositely arranged in the length direction of the bottom plate, a stopping portion is arranged on the fifth side plate, the stopping portion extends downward, and the lowest point of the stopping portion is lower than the highest point of the first end surface.

In some embodiments, the auxiliary anchoring device further includes a first mounting seat and a second mounting seat, the first mounting seat is disposed on the fifth side plate and pivotally connected to the lower end of the supporting arm, and the second mounting seat is disposed on the auxiliary working platform and pivotally connected to the upper end of the supporting arm.

In some embodiments, the first mounting seat is provided with a first lug and a second lug, the first lug is located below the second lug, the first driving member is hinged to the first lug, the lower end of the supporting arm is pivoted to the second lug, the second mounting seat is provided with a third lug and a fourth lug, the fourth lug is located below the third lug, the second driving member is hinged to the fourth lug, and the upper end of the supporting arm is pivoted to the third lug.

In some embodiments, the auxiliary anchoring device further includes a plurality of hinge seats, the hinge seats are respectively connected to the first driving member and the first lug, the lower end of the supporting arm and the second lug, the second driving member and the fourth lug, and the upper end of the supporting arm and the third lug, one end of the hinge seat is hinged to the first lug or the second lug or the third lug or the fourth lug along a first direction, the other end of the hinge seat is hinged to the first driving member or the second driving member or the upper end of the supporting arm or the lower end of the supporting arm along a second direction, and the first direction is perpendicular to the second direction.

In some embodiments, the support arm includes a first sleeve and a second sleeve, the first sleeve is sleeved on the outer periphery of the second sleeve, and the second sleeve can extend along the length direction of the first sleeve.

In some embodiments, the first driving member and the second driving member are both telescopic cylinders.

In some embodiments, the auxiliary anchoring device further comprises a control device connected to the first driving member, the second driving member and the driving motor to control the opening and closing of the first driving member, the second driving member and the driving motor.

Drawings

Fig. 1 is a schematic structural view of an auxiliary anchorage device according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the carriage in fig. 1.

Reference numerals:

the sliding chute comprises a sliding chute 1, a first side plate 11, a second side plate 12, a bottom plate 13, a first bulge 14, a rack 15, a first end surface 16, a second end surface 17, a sliding seat 2, a connecting plate 21, a third side plate 22, a fourth side plate 23, a fifth side plate 24, a second bulge 25, a supporting arm 3, a first driving piece 31, a second driving piece 32, a first sleeve 33, a second sleeve 34, an auxiliary operation platform 4, a driving motor 5, a first mounting seat 6, a first lug 61, a second lug 62, a second mounting seat 7, a third lug 71, a fourth lug 72 and an articulated seat 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

An auxiliary anchoring device according to an embodiment of the present invention will be described with reference to fig. 1 and 2.

The auxiliary anchoring device according to the embodiment of the invention comprises a sliding chute 1, a sliding seat 2, a supporting arm 3 and an auxiliary operation platform 4.

The chute 1 comprises a first side plate 11, a second side plate 12 and a bottom plate 13, wherein the first side plate 11 and the second side plate 12 are respectively connected with the bottom plate 13 and are oppositely arranged in the width direction of the bottom plate 13, first protruding parts 14 are respectively arranged on the first side plate 11 and the second side plate 12, and the first protruding parts 14 extend outwards in the width direction of the bottom plate 13.

As shown in fig. 1 and 2, the first side plate 11 of the sliding chute 1 is a left side plate, the second side plate 12 is a right side plate, the left side plate and the right side plate are respectively connected with the bottom plate 13 to form a groove with an upward opening, and the upper ends of the left side plate and the right side plate are provided with first protruding portions 14 protruding outwards for forming the outer edge of the sliding chute 1 so as to facilitate the matching of the sliding base 2.

The sliding base 2 comprises a connecting plate 21, a third side plate 22, a fourth side plate 23 and a fifth side plate 24, the third side plate 22 and the fourth side plate 23 are oppositely arranged in the width direction of the bottom plate 13, the connecting plate 21 is arranged between the third side plate 22 and the fourth side plate 23 and is respectively connected with the third side plate 22 and the fourth side plate 23, the extending direction of the connecting plate 21 is parallel to the extending direction of the bottom plate 13, one end of the fifth side plate 24 is connected with the third side plate 22, the other end of the fifth side plate 24 is connected with the fourth side plate 23, the extending direction of the fifth side plate 24 is orthogonal to the length direction of the bottom plate 13, second protruding portions 25 are arranged on the third side plate 22 and the fourth side plate 23, the second protruding portions 25 extend inwards in the width direction of the bottom plate 13, a gap is formed between the second protruding portions 25 and the connecting plate 21, the first protruding portions 14 are matched in the gap, and the position of the sliding base 2 in the length direction of the bottom plate 13 is adjustable.

As shown in fig. 1 and 2, the third side plate 22 is a left side plate of the slider 2, the fourth side plate 23 is a right side plate of the slider 2, the connecting plate 21 is horizontally arranged and connects the left and right side plates together, the second protruding portion 25 is arranged at a position of the left and right side plates below the connecting plate 21, the second protruding portion 25 protrudes inward, a certain gap is formed between the second protruding portion 25 and the connecting plate 21, the gap is larger than the thickness of the first protruding portion 14, and the first protruding portion 14 is fitted in the gap, so that the slider 2 can move in the front-back direction.

The lower extreme and the pin joint of fifth curb plate 24 of support arm 3, the length of support arm 3 is adjustable, is equipped with first driving piece 31 on the support arm 3, and the one end of first driving piece 31 is articulated with support arm 3, the other end and the pin joint of fifth curb plate 24 to drive support arm 3 around the pivot of fifth curb plate 24. The auxiliary operation platform 4 is pivoted with the upper end of the supporting arm 3, the supporting arm 3 is provided with a second driving piece 32, one end of the second driving piece 32 is hinged with the supporting arm 3, and the other end of the second driving piece 32 is pivoted with the auxiliary operation platform 4 so as to drive the auxiliary operation platform 4 to pivot around the supporting arm 3.

As shown in fig. 1 and 2, the fifth side plate 24 of the slide carriage 2 is a front side plate, the lower end of the supporting arm 3 is pivoted on the front side plate, the upper end of the supporting arm 3 is pivoted on the auxiliary working platform 4, a plurality of supports are arranged on the supporting arm 3, a first driving member 31 is connected between the support near the lower end and the front side plate, the supporting arm 3 pivots around the front side plate by driving of the first driving member 31 to complete the up-and-down and left-and-right swinging of the supporting arm 3, a second driving member 32 is connected between the support near the upper end and the auxiliary working platform 4, the auxiliary working platform 4 pivots around the upper end of the supporting arm 3 by driving of the second driving member 32 to complete the left-and-right swinging of the auxiliary working platform 4, the length of the supporting arm 3 is variable to complete the back-and-forth movement of the auxiliary working platform 4, and the supporting arm 3 drives the auxiliary working platform 4 to move up and down by the movement of the first driving member 31 and the second driving member 32, The front and back and the left and right move, and the device has the characteristics of simple structure, simple operation and high efficiency.

The auxiliary anchoring and protecting device disclosed by the embodiment of the invention has the characteristics of strong adaptability, large supporting range and high operating efficiency during auxiliary anchoring and protecting operation.

In some embodiments, the auxiliary anchoring device further comprises a driving motor 5, and the driving motor 5 is arranged on the connecting plate 21 to drive the sliding base 2 to move in the length direction of the bottom plate 13.

As shown in fig. 2, a driving motor 5 with a vertically arranged transmission shaft is further disposed on the connecting plate 21, and the slide carriage 2 is moved in the front-rear direction by the driving of the driving motor 5, so that the labor intensity of the operator is reduced, and the left-right efficiency is improved.

In some embodiments, the first side plate 11 and the second side plate 12 are both provided with a rack 15, the driving motor 5 is provided with a driving gear, the driving gear is meshed with the rack 15, and the driving gear is connected with the rotating end of the driving motor 5 to drive the driving motor 5 to move in the length direction of the bottom plate 13.

As shown in fig. 2, a rack 15 is provided between the left and right side plates of the chute 1, a driving gear is provided on the driving motor 5, the driving gear is engaged with the rack 15, when the driving gear is driven by the driving motor 5 to rotate, the driving gear moves along the rack 15, and the driving motor 5 is connected with the connecting plate 21, thereby driving the slide carriage 2 to move.

In some embodiments, the auxiliary anchoring device further includes a first end surface 16 and a second end surface 17, the first end surface 16 and the second end surface 17 are respectively connected to the first side plate 11 and the second side plate 12 and are oppositely arranged in the length direction of the bottom plate 13, and the fifth side plate 24 is provided with a stopping portion, the stopping portion extends downwards, and the lowest point of the stopping portion is lower than the highest point of the first end surface 16.

As shown in fig. 2, in order to ensure that the sliding seat 2 does not slip out of the sliding slot 1 during the forward and backward movement of the sliding seat 2, a part of the front end side plate of the sliding seat 2 extends downward to form a stopping portion, when the sliding seat 2 moves forward to the front end of the sliding slot 1, the stopping portion stops the sliding seat 2 from moving by interference with the first end surface 16, and when the sliding seat 2 moves backward to the rear end of the sliding slot 1, the driving gear of the driving motor 5 stops at the second end surface 17 to prevent the sliding seat 2 from slipping out backward.

In some embodiments, the auxiliary anchoring device further includes a first mounting seat 6 and a second mounting seat 7, the first mounting seat 6 is disposed on the fifth side plate 24 and pivotally connected to the lower end of the supporting arm 3, and the second mounting seat 7 is disposed on the auxiliary working platform 4 and pivotally connected to the upper end of the supporting arm 3.

As shown in fig. 1 and 2, a first mounting seat 6 is arranged between the fifth side plate 24 and the lower end of the supporting arm 3, and a second mounting seat 7 is arranged between the auxiliary working platform 4 and the upper end of the supporting arm 3, so that the abrasion of the supporting arm 3 during pivoting is reduced, the service life of the auxiliary anchoring device is prolonged, and the maintenance difficulty is reduced by replacing parts.

In some embodiments, the first mounting seat 6 is provided with a first lug 61 and a second lug 62, the first lug 61 is located below the second lug 62, the first driving member 31 is hinged to the first lug 61, the lower end of the supporting arm 3 is pivoted to the second lug 62, the second mounting seat 7 is provided with a third lug 71 and a fourth lug 72, the fourth lug 72 is located below the third lug 71, the second driving member 32 is hinged to the fourth lug 72, and the upper end of the supporting arm 3 is pivoted to the third lug 71.

As shown in fig. 2, the first mounting seat 6 is provided with a first lug 61 and a second lug 62, the second mounting seat 7 is provided with a third lug 71 and a fourth lug 72, and the arrangement of the lugs improves the pivoting efficiency and the pivoting angle of the support arm 3 and enlarges the support range of the support arm 3.

In some embodiments, the auxiliary anchoring device further includes a plurality of hinge seats 8, the hinge seats 8 respectively connect the first driving member 31 and the first lug 61, the lower end of the supporting arm 3 and the second lug 62, the second driving member 32 and the fourth lug 72, and the upper end of the supporting arm 3 and the third lug 71, one end of the hinge seat 8 is hinged to the first lug 61, the second lug 62, the third lug 71, or the fourth lug 72 along a first direction, the other end of the hinge seat 8 is hinged to the first driving member 31, the second driving member 32, the upper end of the supporting arm 3, or the lower end of the supporting arm 3 along a second direction, and the first direction is perpendicular to the second direction.

As shown in fig. 1, the supporting arm 3 can not only lift the auxiliary operation platform 4 up and down, but also drive the auxiliary operation platform 4 to swing left and right, the supporting arm 3 is pivoted with the first mounting seat 6 or the second mounting seat 7 along one direction, so that the first mounting seat 6 and the second mounting seat 7 are provided with the hinged seat 8, the hinged seat 8 is provided with the first through hole and the second through hole, the first through hole and the second through hole are distributed at intervals in the length direction of the hinged seat 8, the extending direction of the first through hole and the second through hole is vertical, the connecting piece passes through the first through hole to install the hinged seat 8 on the lug of the first mounting seat 6 or the second mounting seat 7, the connecting piece passing through the second through hole hinges the hinged seat 8 with the first driving piece 31 or the second driving piece 32, and the supporting arm 3 can pivot around the first mounting seat 6 or the second mounting seat 7 in the up and down and left and right directions.

In some embodiments, the support arm 3 includes a first sleeve 33 and a second sleeve 34, the first sleeve 33 is disposed on the outer circumference of the second sleeve 34, and the second sleeve 34 can extend along the length direction of the first sleeve 33.

As shown in fig. 2, the support arm 3 includes a first sleeve 33 and a second sleeve 34 sleeved together, the length of the support arm 3 is changed by changing the overlapping length of the first sleeve 33 and the second sleeve 34, a second pressing block is arranged in the second sleeve 34, a plurality of first pressing blocks are arranged outside the first sleeve 33, and the plurality of first pressing blocks are connected with the second pressing block, so that the gap between the first sleeve 33 and the second sleeve 34 is adjusted, and the first sleeve 33 and the second sleeve 34 are firmly connected together.

In some embodiments, the first driving member 31 and the second driving member 32 are both telescopic cylinders. In order to provide enough telescopic force, the telescopic oil cylinders are used as the first driving piece 31 and the second driving piece 32, and the telescopic oil cylinder has the characteristics of large moment and low cost.

In some embodiments, the auxiliary anchoring device further comprises a control device (not shown), and the control device is connected to the first driving member 31, the second driving member 32 and the driving motor 5 to control the opening and closing of the first driving member 31, the second driving member 32 and the driving motor 5.

In the operation process, the control device is used for controlling the first driving piece 31, the second driving piece 32 and the driving motor 5, the control device is provided with a controller, the moving position of the device can be observed when a worker operates the controller, the worker is liberated from a severe working environment, and the operation precision and the operation efficiency can be improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.