阅读说明：本技术 锚杆用托盘架装置 (Tray rack device for anchor rod ) 是由 吕继双 贾运红 焦晓峰 任晓文 丁永成 车利明 安磊 陈庆贺 胡凌云 杨杰 梁好 于 2021-08-27 设计创作，主要内容包括：本发明公开一种锚杆用托盘架装置,所述锚杆用托盘架装置包括输送组件、第一托盘和第二托盘,输送组件适于沿第一方向运输锚杆,第一托盘和第二托盘沿第一方向依次设在输送组件的外周侧,第一托盘和第二托盘沿输送组件的高度方向间隔设置,第一托盘和第二托盘适于与锚杆止抵配合以用于支撑锚杆。本发明的锚杆用托盘架装置具有空间利用率高、结构简单、成本低廉、运输稳定等优点。(The invention discloses a tray frame device for an anchor rod, which comprises a conveying assembly, a first tray and a second tray, wherein the conveying assembly is suitable for conveying the anchor rod along a first direction, the first tray and the second tray are sequentially arranged on the outer peripheral side of the conveying assembly along the first direction, the first tray and the second tray are arranged at intervals along the height direction of the conveying assembly, and the first tray and the second tray are suitable for being matched with the anchor rod in a stop-abutting mode to support the anchor rod. The tray frame device for the anchor rod has the advantages of high space utilization rate, simple structure, low cost, stable transportation and the like.)

1. A tray frame device for stock, its characterized in that includes:

a transport assembly adapted to transport the bolt in a first direction;

the anchor rod supporting device comprises a first tray and a second tray, wherein the first tray and the second tray are sequentially arranged on the outer peripheral side of the conveying assembly along the first direction, the first tray and the second tray are arranged at intervals along the height direction of the conveying assembly, and the first tray and the second tray are suitable for being matched with the anchor rod in a stopping and abutting mode and used for supporting the anchor rod.

2. The tray frame device for the anchor rod as claimed in claim 1, wherein the conveying assembly comprises a first base, a chain, a driving wheel and a driven wheel, the driving wheel and the driven wheel are rotatably arranged on the first base and are arranged at intervals along the length direction of the first base, and the chain is sleeved on the driving wheel and the driven wheel.

3. The tray frame device for the anchor rod as claimed in claim 2, wherein the outer peripheral surface of the chain is provided with an extension portion extending in a height direction thereof, and the first tray and the second tray are provided on the extension portion by a first fastening member.

4. The tray rack apparatus for a tie-rod of claim 2, wherein the conveyor assembly further comprises a tensioning assembly, the tensioning assembly comprising:

the second base is arranged on the first base, and a first mounting plate is arranged on the second base;

the movable seat is movably arranged on the second base, and the driven wheel is rotatably arranged on the movable seat so as to drive the driven wheel to move;

the driving piece runs through first mounting panel, the one end of driving piece with the sliding seat ends to the cooperation, the driving piece can be followed its axial direction position and be adjustable, so that the drive the sliding seat removes in order to adjust the tensile force of chain.

5. The tray frame device for the anchor rod as claimed in claim 4, wherein the tensioning device further comprises a second fastener, the second fastener is arranged on the driving member and located between the first mounting plate and the movable seat, and one end of the second fastener is in abutting fit with the first mounting plate.

6. The tray frame device for the anchor rod as claimed in claim 2, wherein the conveying assembly further comprises a guide plate, the guide plate is arranged on the first base, the guide plate is provided with a guide groove, the chain is arranged in the guide groove in a penetrating mode, and the inner circumferential surface of the guide groove is spaced from the outer circumferential surface of the chain.

7. The tray rack device for the anchor rod as claimed in claim 1, wherein the first tray and the second tray each comprise a first plate, a second plate and a third plate, the first plate and the second plate are arranged on the third plate at intervals along the length direction of the third plate, a groove is formed in one side of the third plate, which is far away from the transportation assembly, and the rod body of the anchor rod is suitable for being located in the groove of the first tray and/or the groove of the second tray.

8. The pallet rack apparatus for a tie rod of claim 7, further comprising:

the second mounting plate is connected with the inner circumferential surface of the groove of the first tray, is arranged on the outer circumferential side of the transportation assembly and is connected with the inner circumferential surface of the groove of the first tray;

and the third mounting plate is arranged on the outer peripheral side of the transportation assembly, and the height of the second mounting plate is smaller than that of the third mounting plate.

9. The tray frame device for the anchor rod as claimed in claim 8, wherein each of the second mounting plate and the third mounting plate includes a first section, a second section and a third section, the first section is an arc-shaped section protruding toward one side of the first tray, the second section is a vertical section, the third section is a horizontal section, the first section extends from one end of the second section in the height direction along one side of the second section in the thickness direction, the first section extends from the other end of the second section in the height direction along the other side of the second section in the thickness direction, one end of the first section is connected to the inner circumferential surface of the groove, two sides of the first section are spaced from the inner circumferential surface of the groove, the third section and the second section are in arc transition, and the third section is adapted to fit with one end of the anchor rod in an abutting manner.

10. The pallet rack apparatus for a tie rod of claim 8, further comprising:

the first rod and the second rod are arranged on the second mounting plate and are arranged at intervals along the length direction of the second mounting plate, and the first rod and the second rod are suitable for limiting the swing of the anchor rod;

third pole and fourth pole, the third pole with the fourth pole is established on the third mounting panel, the third pole with the fourth pole is followed the length direction interval of third mounting panel sets up, the third pole with the fourth pole is suitable for the restriction the stock swing.

Technical Field

The invention relates to the field of anchor rod support, in particular to a tray frame device for an anchor rod.

Background

The coal mine roadway is generally supported by the anchor rods, and the main functions of the support are to control the discontinuous deformation of the surrounding rock separation layer, the sliding, the crack opening, the new crack generation and the like in the anchoring area and keep the integrity and the continuity of the coal rock mass.

In the related technology, the underground anchor rod support work needs manual carrying of anchor rods, the support speed is low, the efficiency is low, and the working environment of workers is poor.

Disclosure of Invention

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 anchor rod tray frame device which effectively solves the problems of anchor rod storage and transportation in the roadway supporting process, does not need frequent manual anchor rod installation, improves the labor efficiency and reduces the labor intensity.

According to the embodiment of the invention, the tray rack device for the anchor rod comprises: a transport assembly adapted to transport the bolt in a first direction; the anchor rod supporting device comprises a first tray and a second tray, wherein the first tray and the second tray are sequentially arranged on the outer peripheral side of the conveying assembly along a first direction, the first tray and the second tray are arranged along the height direction of the conveying assembly at intervals, and the first tray and the second tray are suitable for being matched with the anchor rod in a stopping manner so as to be used for supporting the anchor rod.

According to the tray rack device for the anchor rod, the conveying assembly, the first tray and the second tray are arranged, the placing space is divided into two upper spaces and lower spaces through the first tray and the second tray for storing the trays, the space utilization rate is optimized, large-capacity storage and underground continuous operation of the anchor rod are achieved, the anchor rod does not need to be supplemented manually frequently, the labor intensity is reduced, and the production efficiency is improved.

In some embodiments, the conveying assembly includes a first base, a chain, a driving wheel and a driven wheel, the driving wheel and the driven wheel are both rotatably disposed on the first base and are spaced apart along a length direction of the first base, and the chain is sleeved on the driving wheel and the driven wheel.

In some embodiments, the outer circumferential surface of the chain is provided with an extension portion extending in a height direction thereof, and the first tray and the second tray are provided on the extension portion by a first fastener.

In some embodiments, the conveyor assembly further comprises a tensioning assembly comprising: the second base is arranged on the first base, and a first mounting plate is arranged on the second base; the movable seat is movably arranged on the second base, and the driven wheel is rotatably arranged on the movable seat so as to drive the driven wheel to move; the driving piece runs through first mounting panel, the one end of driving piece with the sliding seat ends to the cooperation, the driving piece can be followed its axial direction position and be adjustable, so that the drive the sliding seat removes in order to adjust the tensile force of chain.

In some embodiments, the tensioning device further comprises a second fastening member, the second fastening member is arranged on the driving member and located between the first mounting plate and the movable seat, and one end of the second fastening member is in abutting fit with the first mounting plate.

In some embodiments, the conveying assembly further comprises a guide plate disposed on the first base, the guide plate has a guide groove, the chain is disposed in the guide groove, and an inner circumferential surface of the guide groove is spaced from an outer circumferential surface of the chain.

In some embodiments, the first tray and the second tray each include a first plate, a second plate, and a third plate, the first plate and the second plate are disposed on the third plate at intervals along a length direction of the third plate, a groove is disposed on a side of the third plate away from the transportation assembly, when the tray of the anchor rod is inserted into the first tray, a rod body of the anchor rod is located in the groove of the first tray, or when the tray of the anchor rod is inserted into the second tray, the rod body of the anchor rod is located in the groove of the second tray.

In some embodiments, the anchor rod tray rack device further comprises: the second mounting plate is connected with the inner circumferential surface of the groove of the first tray, is arranged on the outer circumferential side of the transportation assembly and is connected with the inner circumferential surface of the groove of the first tray; and the third mounting plate is arranged on the outer peripheral side of the transportation assembly, and the height of the second mounting plate is smaller than that of the third mounting plate.

In some embodiments, each of the second mounting plate and the third mounting plate includes a first section, a second section and a third section, the first section is an arc-shaped section protruding toward one side of the first tray, the second section is a vertical section, the third section is a horizontal section, the first section extends from one end of the second section in the height direction along one side of the second section in the thickness direction, the first section extends from the other end of the second section in the height direction along the other side of the second section in the thickness direction, one end of the first section is connected to the inner circumferential surface of the groove, two sides of the first section are spaced from the inner circumferential surface of the groove, the third section and the second section are in arc transition, and the third section is suitable for one end of the anchor rod to be in abutting fit.

In some embodiments, the anchor rod tray rack device further comprises: the first rod and the second rod are arranged on the second mounting plate and are arranged at intervals along the length direction of the second mounting plate, and the first rod and the second rod are suitable for limiting the swing of the anchor rod; third pole and fourth pole, the third pole with the fourth pole is established on the third mounting panel, the third pole with the fourth pole is followed the length direction interval of third mounting panel sets up, the third pole with the fourth pole is suitable for the restriction the stock swing.

Drawings

Fig. 1 is a schematic structural view of a pallet rack device for anchor rods according to an embodiment of the invention.

Fig. 2 is a schematic structural diagram of a conveying assembly of the tray rack device for the anchor rods in the embodiment of the invention.

Fig. 3 is a schematic structural view of a first tray and a second mounting plate of the anchor rod tray rack device according to the embodiment of the invention.

Fig. 4 is a schematic structural view of a tensioning assembly of the tray rack device for the anchor rods according to the embodiment of the invention.

Fig. 5 is a schematic structural view of the anchor rod tray frame device according to the embodiment of the invention.

Reference numerals:

a pallet frame device for anchor rods 100;

a delivery assembly 1; a first base 11; a chain 12; an extension 121;

a first tray 2; a first plate 21; a second plate 22; a third plate 23; a groove 24;

a second tray 3;

a tension assembly 4; a second chassis 41; a first mounting plate 411; a movable seat 42; a driving member 43; a second fastener 45;

a second mounting plate 5; a first section 51; a second section 52; a third section 53;

a third mounting plate 6; a first lever 7; a second lever 8; a third lever 9; a fourth bar 10; an anchor rod 11; anchor trays 111;

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.

A pallet rack device for a rock bolt according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 5, a pallet rack device 100 for a rock bolt according to an embodiment of the present invention includes: a conveyor assembly 1, a first tray 2 and a second tray 3.

The conveyor assembly 1 is adapted to transport the anchor rods 11 in a first direction.

The first tray 2 and the second tray 3 are sequentially arranged on the outer peripheral side of the conveying assembly 1 along a first direction, the first tray 2 and the second tray 3 are arranged at intervals along the height direction (the vertical direction as shown in fig. 1) of the conveying assembly 1, and the first tray 2 and the second tray 3 are suitable for being matched with the anchor rods 11 in a stop mode to support the anchor rods 11. Specifically, as shown in the figure (as shown in fig. 1, the up-down direction), the number of the first trays 2 and the number of the second trays 3 are plural, the first trays 2 and the second trays 3 are alternately arranged on the outer peripheral side of the transportation assembly along the first direction, and the first trays 2 and the second trays 3 are arranged at intervals along the up-down direction, so that the transportation assembly drives the first trays 2 and the second trays 3 to move along the first direction, and the trays 111 of the anchor rods are arranged on the first trays 2 and the second trays 3 and are in abutting fit with the first trays 2 and the second trays 3, thereby preventing the anchor rods 11 from falling off from the lower ends, and ensuring the transportation stability of the anchor rods 11.

According to the anchor rod tray rack device 100 of the embodiment of the invention, the first tray 2 and the second tray 3 are sequentially arranged on the outer periphery side of the conveying assembly 1 along the first direction, so that the first tray 2 and the second tray 3 can lift the anchor rod tray 111 to prevent the anchor rods 11 from falling off from the conveying device, the first tray 2 and the second tray 3 are arranged at intervals along the height direction of the conveying assembly 1, the adaptability of the first tray 2 and the second tray 3 is improved, the stacking design of the first tray 2 and the second tray 3 saves more space, the anchor rods 11 are staggered along the up-down direction under the action of the first tray 2 and the second tray 3 to prevent the interference between the two adjacent anchor rods 11, the space utilization rate is improved, the large-capacity storage of the anchor rods 11 is realized, the anchor rods 11 are continuously supplied, the anchor rods 11 do not need to be frequently supplemented manually, and the underground operation requirements are met, the labor intensity is reduced.

In some embodiments, the conveying assembly 1 includes a first base 11, a chain 12, a driving wheel (not shown) and a driven wheel (not shown), both of which are rotatably disposed on the first base 11 and are spaced along a length direction (left and right directions as shown in fig. 1-2) of the first base 11, and the chain 12 is sleeved on the driving wheel and the driven wheel. Specifically, as shown in fig. 2, the driving wheel and the driven wheel are both hinged on the first base 11, the chain 12 is sleeved between the driving wheel and the driven wheel, and both the driving wheel and the driven wheel are in meshing transmission with the chain 12.

In some embodiments, the outer circumferential surface of the chain 12 is provided with an extension 121 extending up and down, and the first tray 2 and the second tray 3 are provided on the extension 121 by the first fastening member. Specifically, as shown in fig. 2, the chain 12 includes a plurality of links connected to each other, each link is provided with an extension 121 on both upper and lower sides of an outer peripheral surface thereof, and the first and second trays 2 and 3 are fixed to the extensions 121 by fasteners 45, so that the first and second trays 2 and 3 are fixed to an outer peripheral side of the chain 12.

In some embodiments, the conveying assembly 1 further comprises a tensioning assembly 4, and the tensioning assembly 4 comprises a second base 41, a movable seat 42 and a driving member 43.

The second base 41 is arranged on the first base 11, the first mounting plate is arranged on the second base 41, the movable seat 42 is movably arranged on the second base 41, the driven wheel is rotatably arranged on the movable seat 42 so as to drive the driven wheel to move, the driving member 43 penetrates through the first mounting plate 411, one end of the driving member 43 is in abutting fit with the movable seat 42, and the position of the driving member 43 can be adjusted along the axial direction thereof so as to drive the movable seat 42 to move so as to adjust the tension of the chain 12.

Specifically, as shown in fig. 2 and 4, the second base 41 is a fixed base and is fixedly installed on the first base 11, the first mounting plate 411 is fixed on the first base 11, the movable seat 42 can move on the second base 41 in the left-right direction, the driven wheel is rotatably installed on the movable seat 42, the driving member 43 is installed at the rear side of the second base 41 and penetrates through the first mounting plate 411, the left end of the driving member 43 abuts against the movable seat 42, and therefore, the driving member 43 drives the movable seat 42 to move in the left-right direction, so as to drive the driven wheel to move to adjust the tension of the sprocket.

In some embodiments, the tensioning device further comprises a second fastening member 45, the second fastening member 45 is disposed on the driving member 43 and located between the first mounting plate 411 and the movable seat 42, and one end of the second fastening member 45 is in abutting engagement with the first mounting plate 411. Specifically, as shown in fig. 2 and 4, a first thread is disposed on the rod body of the driving member 43, a second thread matched with the first thread is disposed on the second fastening member 45, the second fastening member 45 is disposed on the driving member 43 and fixed together by thread matching, the second fastening member 45 abuts against the left end of the first mounting plate 411, and when the driving member 43 is required to drive the movable seat 42, the second fastening member 45 is rotated to drive the driving member 43 to move in the left-right direction, so as to adjust the tensioning degree of the chain 12.

In some embodiments, the conveying assembly 1 further includes a guide plate (not shown in the drawings), the guide plate is disposed on the first base 11, the guide plate has a guide groove, the chain 12 is disposed in the guide groove, and an inner circumferential surface of the guide groove is spaced from an outer circumferential surface of a body of the chain 12. Specifically, the deflector is fixed on first base 11, and is equipped with the guide way that runs through the deflector along left right direction on the deflector, and the deflector is established between action wheel and follow driving wheel, and chain 12 can be transported in the guide way to play the limiting displacement to chain 12 body through the guide way, prevent that chain 12 body from producing the shake when carrying. And the body of the chain 12 is not contacted with the guide groove, so that abrasion is avoided, the service life is prolonged, and the maintenance cost is reduced.

In some embodiments, each of the first tray 2 and the second tray 3 includes a first plate 21, a second plate 22, and a third plate 23, the first plate 21 and the second plate 22 are disposed on the third plate 23 at intervals along a length direction of the third plate 23, a groove 24 is disposed on a side of the third plate 23 away from the transportation assembly, when the tray 111 of the anchor rod is inserted into the first tray 2, the rod body of the anchor rod 11 is disposed in the groove 24 of the first tray 2, or when the tray 111 of the anchor rod is inserted into the second tray 3, the rod body of the anchor rod 11 is disposed in the groove 24 of the second tray 3. Specifically, as shown in fig. 1 and 3, the first plate 21 is disposed on the left side of the third plate 23, and the second plate 22 is disposed on the right side of the third plate 23, so that the tray 111 of the anchor rod is prevented from shaking left and right on the third plate 23 by the first plate 21 and the second plate 22, thereby ensuring the transportation stability of the anchor rod 11, and the front side of the third plate 23 is provided with a groove 24, and the rod body of the anchor rod 11 passes through the groove 24, thereby preventing the rod body of the anchor rod 11 from interfering with the third plate 23, and making the arrangement of the first tray 2 and the second tray 3 more reasonable.

In some embodiments, the anchor rod tray rack apparatus 100 further includes a second mounting plate 5 and a third mounting plate 6.

The second mounting plate 5 is connected with the inner peripheral surface of the groove 24 of the first tray 2, the second mounting plate 5 is arranged on the outer peripheral side of the transportation assembly, the second mounting plate 5 is connected with the inner peripheral surface of the groove 24 of the first tray 2, the third mounting plate 6 is arranged on the outer peripheral side of the transportation assembly, and the height of the second mounting plate 5 is smaller than that of the third mounting plate 6. Specifically, as shown in fig. 1 and 3, the first tray 2 is disposed above the second mounting plate 5, the upper end of the second mounting plate 5 is connected with the inner peripheral surface of the recess 24, and the second mounting plate 5 is disposed on the outer peripheral side of the transportation unit, the second mounting plate 5 and the extension 121 are fixed together by the first fastening member, thereby mounting the first tray 2 on the transportation unit, the second tray 3 is disposed above the third mounting plate 6, the upper end of the third mounting plate 6 is connected with the inner peripheral surface of the recess 24, and the third mounting plate 6 is disposed on the outer peripheral side of the transportation unit, the third mounting plate 6 and the extension 121 are fixed together by the first fastening member, thereby mounting the second tray 3 on the transportation unit. In addition, the height of the second mounting plate 5 is smaller than that of the third mounting plate 6, thereby making it possible to ensure that the first trays 2 and the second trays 3 are alternately arranged in the vertical direction.

It will be appreciated that the first fastener may be a fastening screw, bolt, etc. and the second fastener may be a nut, etc.

In some embodiments, each of the second mounting plate 5 and the third mounting plate 6 includes a first segment 51, a second segment 52 and a third segment 53, the first segment 51 is an arc-shaped segment protruding toward one side of the first tray 2, the second segment 52 is a vertical segment, the third segment 53 is a horizontal segment, the first segment 51 extends from one end of the second segment 52 in the height direction along one side of the second segment 52 in the thickness direction (front-back direction as shown in fig. 3), the first segment 51 extends from the other end of the second segment 52 in the height direction along the other side of the second segment 52 in the thickness direction (front-back direction as shown in fig. 3), one end of the first segment 51 is connected to the inner circumferential surface of the groove 24, two sides of the first segment 51 are spaced from the inner circumferential surface of the groove 24, the third segment 53 and the second segment 52 are in a circular arc transition, and the third segment 53 is adapted to stop-fit with one end of the anchor rod 11.

Specifically, as shown in fig. 1, the first plate 21 is an arc-shaped section protruding upwards, the first plate 21 is arranged at the upper end of the third plate 23 and located at the front side of the third plate 23, the second plate 22 is arranged at the lower end of the third plate 23 and located at the right side of the third plate, so that the tray 111 of the anchor rod is prevented from shaking left and right on the third plate 23 through the first plate 21 and the second plate 22, the transportation stability of the anchor rod 11 is ensured, the front side of the third plate 23 is provided with a groove 24, the rod body of the anchor rod 11 penetrates through the groove 24, the interference between the rod body of the anchor rod 11 and the third plate 23 is prevented, and the first tray 2 and the second tray 3 are more reasonably arranged.

In some embodiments, the anchor tray rack apparatus 100 further includes a first bar 7, a second bar 8, a third bar 9, and a fourth bar 10.

First pole 7 and second pole 8 are established on second mounting panel 5, and first pole 7 and second pole 8 set up along the length direction interval of second mounting panel 5, and first pole 7 and second pole 8 are suitable for restricting the stock 11 swing, and third pole 9 and fourth pole 10 are established on third mounting panel 6, and third pole 9 and fourth pole 10 set up along the length direction interval of third mounting panel 6, and third pole 9 and fourth pole 10 are suitable for restricting the stock 11 swing.

Specifically, as shown in fig. 1 and 3, the first rod 7 and the second rod 8 are arranged on the second mounting plate 5 at intervals in the left-right direction, the rod body of the anchor rod 11 is clamped between the first rod 7 and the second rod 8, so that the anchor rod 11 is prevented from shaking left and right in the transportation process, the third rod 9 and the fourth rod 10 are arranged on the third mounting plate 6 at intervals in the left-right direction, and the rod body of the anchor rod 11 is clamped between the third rod 9 and the fourth rod 10, so that the anchor rod 11 is prevented from shaking left and right in the transportation process, and therefore, the support assembly is more reasonably arranged.

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.