阅读说明：本技术 输送装置 (Conveying device ) 是由 林山富 刘付志标 于 2020-06-19 设计创作，主要内容包括：本发明提供了一种输送装置,输送装置用于将餐具送出,输送装置包括：第一驱动机构,第一驱动机构的移动端用于承载餐具,第一驱动机构的移动端沿第一方向移动,以通过第一驱动机构带动餐具沿第一方向移动；第二驱动机构,第二驱动机构的移动端与第一驱动机构连接,第二驱动机构的移动端沿第二方向移动,以通过第二驱动机构带动餐具沿第二方向移动,第二方向与第一方向呈预定角度设置；其中,第一驱动机构不少于两个,各第一驱动机构沿第二方向间隔设置在第二驱动机构的移动端上。通过本发明提供的技术方案,能够解决现有技术中的输送装置的运行效率较低的技术问题。(The invention provides a conveying device, which is used for sending out tableware, and comprises: the moving end of the first driving mechanism is used for bearing the tableware and moves along a first direction so as to drive the tableware to move along the first direction through the first driving mechanism; the moving end of the second driving mechanism moves along a second direction so as to drive the tableware to move along the second direction through the second driving mechanism, and the second direction and the first direction are arranged at a preset angle; the number of the first driving mechanisms is not less than two, and each first driving mechanism is arranged on the moving end of the second driving mechanism at intervals along the second direction. Through the technical scheme provided by the invention, the technical problem of low operation efficiency of the conveying device in the prior art can be solved.)

1. A conveyor for moving out cutlery, the conveyor comprising:

the movable end of the first driving mechanism is used for bearing the tableware, and the movable end of the first driving mechanism moves along a first direction so as to drive the tableware to move along the first direction through the first driving mechanism;

the moving end of the second driving mechanism is connected with the first driving mechanism, the moving end of the second driving mechanism moves along a second direction so as to drive the tableware to move along the second direction through the second driving mechanism, and the second direction and the first direction are arranged at a preset angle;

the number of the first driving mechanisms is not less than two, and each first driving mechanism is arranged on the moving end of the second driving mechanism at intervals along the second direction.

2. The delivery device of claim 1, wherein the first drive mechanism comprises:

a traction structure;

a support table disposed on the traction structure, the support table forming a moving end of the first driving mechanism;

a guide structure, at least a portion of the guide structure being coupled to the support table to guide movement of the support table through the guide structure.

3. The delivery device of claim 2, wherein the first drive mechanism further comprises:

the support table is movably arranged on the first support seat;

the first detection structure is at least partially arranged on the first support seat, and the first detection structure is used for detecting the position of the support seat.

4. The delivery device of claim 2, wherein the first drive mechanism further comprises:

a first support base;

the driving synchronous wheel assembly and the driven synchronous wheel assembly are arranged on the first supporting seat at intervals, and the traction structure is wound on the driving synchronous wheel assembly and the driven synchronous wheel assembly;

the adjusting part, the adjusting part sets up on the first supporting seat, the regulation end movably of adjusting part sets up on the first supporting seat, the regulation end of adjusting part with passive synchronizing wheel subassembly is connected, with through the adjusting part is adjusted the position of passive synchronizing wheel subassembly.

5. The delivery device of claim 1, wherein the second drive mechanism comprises:

a second support seat;

the first driving mechanism is arranged on the base, and the base is movably arranged on the second supporting seat along the second direction.

6. The transport apparatus of claim 5, wherein the first drive mechanism includes a support table forming a moving end of the first drive mechanism; the second drive mechanism further includes:

the limiting structure is arranged on the base and matched with the appearance of the tableware, and the limiting structure surrounds the supporting table.

7. The conveying device as claimed in claim 6, wherein the position-limiting structure is provided with a plurality of operation slots, the operation slots are circumferentially arranged at intervals, each operation slot is a strip-shaped slot, and each operation slot extends along the first direction.

8. The conveying device according to claim 7, wherein the limiting structure comprises a plurality of limiting shafts, the plurality of limiting shafts are arranged at intervals, the plurality of limiting shafts are arranged around the supporting platform, and the operating slot is formed between every two adjacent limiting shafts.

9. The delivery device of claim 5, wherein the second drive mechanism further comprises:

the driving gear is arranged on the base;

the rack is arranged on the second supporting seat, the rack extends along the second direction, and the driving gear is matched with the rack so that the base moves along the second direction.

10. The delivery device of any of claims 5 to 9, wherein the second drive mechanism further comprises:

and at least part of the second detection structure is arranged on the second support seat, and the second detection structure is used for detecting the movement position of the base.

Technical Field

The invention relates to the technical field of automatic catering equipment, in particular to a conveying device.

Background

At present, as the internet of things, artificial intelligence, intelligent robots and the like gradually become high-frequency words of daily life, more and more catering management enterprises begin to search in the unmanned field and gradually transform the directions of semi-automation, full-automation, intellectualization and the like. Both the traditional bowl and the disposable bowl are indispensable kitchen utensils in the catering industry.

However, in the scheme of the conveying device for automatically discharging the bowls in the prior art, the bowls are generally stacked in a row to be pushed out one by one, so that the conveying device has the advantages of low space utilization rate, small bowl storage quantity, high bowl adding frequency and reduced overall operation efficiency of equipment.

Disclosure of Invention

The invention mainly aims to provide a conveying device to solve the technical problem that the conveying device in the prior art is low in operation efficiency.

In order to achieve the above object, the present invention provides a conveying device for sending out tableware, comprising: the moving end of the first driving mechanism is used for bearing the tableware and moves along a first direction so as to drive the tableware to move along the first direction through the first driving mechanism; the moving end of the second driving mechanism moves along a second direction so as to drive the tableware to move along the second direction through the second driving mechanism, and the second direction and the first direction are arranged at a preset angle; the number of the first driving mechanisms is not less than two, and the first driving mechanisms are arranged on the moving end of the second driving mechanism at intervals along the second direction.

Further, the first drive mechanism includes: a traction structure; the supporting table is arranged on the traction structure, forms a moving end of the first driving mechanism, and is used for placing tableware so that the traction structure drives the tableware to move through the supporting table; a guide structure, at least a portion of which is connected to the support table to guide movement of the support table through the guide structure.

Further, the first driving mechanism further includes: the support table is movably arranged on the first support seat; the first detection structure is at least partially arranged on the first support seat and used for detecting the position of the support seat.

Further, the first driving mechanism further includes: a first support base; the driving synchronous wheel component and the driven synchronous wheel component are arranged on the first supporting seat at intervals, and the traction structure is wound on the driving synchronous wheel component and the driven synchronous wheel component; the adjusting component is arranged on the first supporting seat, the adjusting end of the adjusting component is movably arranged on the first supporting seat, and the adjusting end of the adjusting component is connected with the driven synchronizing wheel component so as to adjust the position of the driven synchronizing wheel component through the adjusting component.

Further, the second drive mechanism includes: a second support seat; the base, first actuating mechanism set up on the base, and the base is followed the movably setting of second direction on the second supporting seat.

Further, the first driving mechanism comprises a supporting table, and the supporting table is used for supporting the tableware; the second drive mechanism further includes: limit structure, limit structure set up on the base, limit structure and the appearance looks adaptation of tableware, limit structure encircles a supporting bench and sets up.

Furthermore, a plurality of operation slotted holes are formed in the limiting structure and are circumferentially arranged at intervals, each operation slotted hole is a strip-shaped groove, and each operation slotted hole extends along the first direction.

Furthermore, limit structure includes a plurality of spacing axles, and a plurality of spacing axle intervals set up, and a plurality of spacing axles encircle a supporting bench setting, are used for forming the operation slotted hole between two adjacent spacing axles.

Further, the second driving mechanism further includes: the driving gear is arranged on the base; the rack is arranged on the second supporting seat, extends along the second direction, and drives the gear and the rack to be matched so that the base moves along the second direction.

Further, the second driving mechanism further includes: and the second detection structure is at least partially arranged on the second support seat and is used for detecting the movement position of the base.

By applying the technical scheme of the invention, as the number of the first driving mechanisms is not less than two, each first driving mechanism is provided with a large number of tableware, and after the tableware in one first driving mechanism is output, the second driving mechanism drives the first driving mechanisms to move so as to output the tableware in the other first driving mechanism, thus the conveying of the tableware in the first driving mechanisms is completed and the conveying efficiency is improved. Therefore, the technical problem that the conveying device in the prior art is low in operation efficiency can be solved through the technical scheme provided by the invention.

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 structural view of a conveying apparatus provided according to an embodiment of the present invention;

FIG. 2 illustrates a schematic structural diagram of a first drive mechanism provided in accordance with an embodiment of the present invention;

FIG. 3 illustrates a schematic structural diagram of a second drive mechanism provided in accordance with an embodiment of the present invention;

FIG. 4 illustrates a schematic structural view of another angle of the first drive mechanism provided in accordance with an embodiment of the present invention;

FIG. 5 illustrates a side view of a first drive mechanism provided in accordance with an embodiment of the present invention;

FIG. 6 illustrates a structural schematic view of another angle of the second drive mechanism provided in accordance with an embodiment of the present invention; and

fig. 7 shows an exploded view of a second drive mechanism provided in accordance with an embodiment of the present invention.

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.

As shown in fig. 1 to 7, the present invention provides a conveyor for sending out dishes. The conveying device comprises a first driving mechanism 10 and a second driving mechanism 20, wherein a moving end of the first driving mechanism 10 is used for bearing the tableware, and the moving end of the first driving mechanism 10 moves along a first direction so as to drive the tableware to move along the first direction through the first driving mechanism 10. The moving end of the second driving mechanism 20 is connected to the first driving mechanism 10, the moving end of the second driving mechanism 20 moves along a second direction, so that the second driving mechanism 20 drives the tableware to move along the second direction, and the second direction and the first direction are arranged at a predetermined angle; the number of the first driving mechanisms 10 is two or more, and the two or more first driving mechanisms 10 are disposed at intervals along the second direction on the moving end of the second driving mechanism 20. Specifically, the tableware in this application is mainly the eating bowl 112.

With the conveying device provided by this embodiment, under the action of the second driving mechanism 20, two or more first driving mechanisms 10 can be driven to move one by one to the output position, and the dishes in the first driving mechanism at the output position will be delivered one by one. Because first actuating mechanism 10 has a plurality ofly, is provided with a plurality of tableware in every first actuating mechanism 10, like this, can deposit a large amount of tableware in the conveyor, the staff need not often to supply the tableware in the first actuating mechanism to can carry a large amount of tableware in certain time through conveyor, thereby improve conveying efficiency. The conveying device in the embodiment has the advantages of high space utilization rate, large quantity of stored tableware and low frequency of adding the tableware, and greatly improves the overall operation efficiency of equipment. Therefore, through the conveyor that this embodiment provided, can solve the lower technical problem of conveyor's operating efficiency among the prior art.

In this embodiment, the first driving mechanism 10 includes a traction structure 103 and a support platform 111, the support platform 111 is disposed on the traction structure 103, so that the traction structure 103 drives the support platform 111 to move, the support platform 111 forms a moving end of the first driving mechanism 10, and the support platform 111 is used for placing tableware, so that the traction structure 103 drives the tableware to move through the support platform 111. By adopting the arrangement, the structure is simple, the realization is convenient, and the traction structure 103 drives the supporting table 111 to stably operate so as to improve the stability and reliability of the movement. Specifically, the traction structure in this embodiment may be a timing belt.

Specifically, the first driving mechanism 10 in the present embodiment further includes a guiding structure, at least a portion of which is connected to the support table 111 to guide the movement of the support table 111 through the guiding structure. With such a configuration, the movement of the support base 111 can be guided by the guide structure, so that the operational stability of the support base 111 can be further improved.

In this embodiment, the first driving mechanism 10 further includes a first supporting seat 115, the guiding structure includes a first rail block 110 and a first rail 113, the first rail block 110 is disposed on the supporting seat 111, the first rail 113 is disposed on the first supporting seat 115, the first rail 113 extends along a first direction, and the first rail block 110 is slidably disposed on the first rail 113. With such a structure, the first rail slider 110 and the first rail 113 have a simple structure, are easy to manufacture, and have good guiding stability.

Specifically, the first driving mechanism 10 in this embodiment further includes a first supporting base 115 and a first detecting structure, the supporting base 111 is movably disposed on the first supporting base 115, at least a portion of the first detecting structure is disposed on the first supporting base 115, and the first detecting structure is configured to detect a position of the supporting base 111. With this arrangement, the position of the support base 111 can be detected to determine the transport state of the dishes in the first drive mechanism 10, and the operation state of the second drive mechanism 20 can be controlled based on the transport state of the dishes by the first drive mechanism 10.

Specifically, the first detecting structure includes a first position sensor 102 and a first sensing element 104, the first position sensor 102 (which may be a photoelectric sensor) is disposed on the first supporting base 115, the first sensing element 104 is disposed on the supporting base 111, and the first position sensor 102 is used for detecting the position of the first sensing element 104. With such an arrangement, the accuracy of detection can be improved.

In this embodiment, the first driving mechanism 10 further includes a first supporting seat 115, a driving synchronizing wheel assembly 108, a driven synchronizing wheel assembly 114 and an adjusting assembly, the driving synchronizing wheel assembly 108 and the driven synchronizing wheel assembly 114 are disposed on the first supporting seat 115 at intervals, and the traction structure 103 is disposed around the driving synchronizing wheel assembly 108 and the driven synchronizing wheel assembly 114. The adjusting component is arranged on the first supporting seat 115, an adjusting end of the adjusting component is movably arranged on the first supporting seat 115, and the adjusting end of the adjusting component is connected with the driven synchronizing wheel component 114 so as to adjust the position of the driven synchronizing wheel component 114 through the adjusting component, thereby realizing tensioning adjustment of the traction structure 103.

In this embodiment, the first driving mechanism 10 further includes a first sensor mounting groove 101, a first connecting plate 105, a first power assembly 106, a timing belt block 107, a second connecting plate 109, a tension back plate 116, a tension block 117, and a tension screw 118. The first sensor mounting groove 101, the first power assembly 106, the driving synchronizing wheel assembly 108, the first guide rail 113 (in this embodiment, the first guide rail 113 may be a lifting guide rail, the number of the first guide rails 113 may be multiple, in this embodiment, two first guide rails 113), the driven synchronizing wheel assembly 114, the tension back plate 116, and the tension block 117 are all directly and fixedly mounted on the first support base 115. The driving synchronizing wheel assembly 108 is driven by the power assembly and is pulled by the engagement of the pulling structure 103 to realize the movement of the driven synchronizing wheel assembly 114. Draw structure 103 one side and be fixed with first connecting plate 105 and hold in range piece 107, when drawing structure 103 and go up and down reciprocating motion, first connecting plate 105 and hold in range piece 107 have just realized the lift follow-up. The support base 111 is fixed to the first rail block 110 and can move up and down on two up-and-down rails. Meanwhile, the supporting platform 111 and the first sensing element 104 (the first sensing element 104 here may be a sensing piece) are linked with the first connecting plate 105 through the second connecting plate 109, so that the supporting platform 111 and the sensing piece follow the synchronous belt block 107 to make the supporting platform 111 reciprocate along the two lifting guide rails under the driving of the power assembly. The support table 111 can hold the edible bowl 112, an adjusting assembly (a tensioning device) is further designed on one side of the passive synchronous wheel assembly 114, specifically, an adjustable tensioning screw 118 is installed on the tensioning block 117, and the relative position of the tensioning back plate 116 on the first connecting plate 105 can be adjusted by adjusting the tensioning screw 118, so that the relative distance between the passive synchronous wheel assembly 114 and the active synchronous wheel assembly 108 is changed, and tensioning adjustment of the traction structure 103 is realized. The first sensor mounting groove 101 is provided with a first position sensor 102, and the sensing piece can feed back a position signal to the first position sensor 102 in the lifting motion process so as to detect the upper limit position and the lower limit position of the support table 111 and the reset position.

Specifically, the second driving mechanism 20 in this embodiment includes a second supporting seat 207 and a base 211, the first driving mechanism 10 is disposed on the base 211, and the base 211 is movably disposed on the second supporting seat 207 along the second direction. By adopting the driving connection mode, the first driving mechanism 10 can be driven to move along the second direction conveniently through the base 211.

Specifically, the first driving mechanism 10 includes a support base 111, and the support base 111 is used to support the dishes. Second actuating mechanism 20 still includes limit structure, and limit structure sets up on base 211, and limit structure and the appearance looks adaptation of tableware, limit structure encircle a supporting bench 111 and set up. By adopting the arrangement, when the first driving mechanism 10 conveys the tableware, the tableware can be effectively limited through the limiting structure, the position shifting of the tableware is avoided, the stable movement of the tableware along the first direction is ensured, and the conveying stability of the tableware is improved.

In this embodiment, the position-limiting structure is provided with a plurality of operation slots 214, the operation slots 214 are circumferentially arranged at intervals, each operation slot 214 is a strip-shaped slot, and each operation slot 214 extends along the first direction. By adopting the structure, when the tableware in the limiting structure is not normally stacked, a user can adjust the position of the tableware through the operation slot hole 214; in addition, the user can put the dishes in the first direction (from top to bottom) through the operation slot 214, thereby achieving the technical effect of facilitating the user operation.

In this embodiment, the limiting structure includes a plurality of limiting shafts 202, the limiting shafts 202 are disposed at intervals, the limiting shafts 202 are disposed around the supporting platform 111, and an operation slot 214 is formed between two adjacent limiting shafts 202. By adopting the arrangement, the position of the tableware can be effectively limited by the limiting shafts 202 arranged at intervals, and the tableware is prevented from moving to the range outside the limiting shafts 202, so that the running stability of the tableware is better improved. Meanwhile, the limiting structure formed by the plurality of limiting shafts 202 is convenient to realize, simple in structure and firm in effect. Specifically, in the present embodiment, there are two first driving mechanisms 10, 8 limiting shafts 202, and 8 limiting shafts 202 are disposed along the periphery of the supporting platform 111 of the two first driving mechanisms 10, so as to limit the tableware of the two first driving mechanisms 10 simultaneously by the limiting structure.

In order to further improve the limiting effect, the limiting structure in this embodiment further includes a limiting ring 201, the limiting ring 201 is adapted to the shape of the tableware, and the limiting ring 201 is disposed at the end of the plurality of limiting shafts 202. Specifically, the stop collar 201 in this embodiment is composed of two circular rings, and the stop collar 201 located at the end portion can play a role of connecting a plurality of stop shafts 202, so as to improve the stability of the stop shafts 202.

Specifically, the second driving mechanism 20 in this embodiment further includes a driving gear 212 and a rack 205, and the driving gear 212 is disposed on the base 211. The rack 205 is disposed on the second supporting seat 207, the rack 205 extends along the second direction, and the driving gear 212 is disposed to cooperate with the rack 205 to move the base 211 along the second direction. With the arrangement, the second driving mechanism 20 can drive the first driving mechanism 10 to move stably along the second direction, so that the movement stability is improved.

In this embodiment, the second driving mechanism 20 further includes a second detecting structure, at least a portion of the second detecting structure is disposed on the second supporting seat 207, and the second detecting structure is configured to detect a moving position of the base 211. With this arrangement, it is possible to facilitate control of the movement of the base 211 based on the movement position information of the base 211.

Specifically, the second detecting structure in this embodiment includes a second position sensor 208 and a second sensing element 210, and the second position sensor 208 (which may be a photoelectric sensor) is disposed on the second supporting seat 207. The second sensing member 210 is disposed on the base 211, and the second position sensor 208 is used for detecting the position of the second sensing member 210. By adopting the structure, the detection accuracy can be improved.

Specifically, the second driving mechanism 20 in this embodiment further includes a support 203, a second guide rail 204, a second sensor mounting groove 206, a second guide rail slider 209, and a second power assembly 213. On 8 spacing axles 202 were fixed in the bottom plate through 8 groups of supports 203, can carry out radial positioning to the edible bowl 112 of two sets of actuating mechanism 10 (first actuating mechanism 10 can be for lifting module), ensure that edible bowl 112 is at the lift in-process radial position unchangeable, do not rock in order to guarantee spacing axle 202 upper end simultaneously, the design has spacing ring 201 to fix spacing axle 202. The second sensing member 210 (the second sensing member 210 may be a sensing piece) is fixedly installed on the base plate, and the driving gear 212 is driven by the second power assembly 213 and is fixedly installed on the base plate. Two second guide rails 204, a rack 205 and a second sensor mounting groove 206 are fixedly mounted on the bottom plate, the bottom plate and the parts thereon realize transverse movement on the two second guide rails 204 through second guide rail sliders 209, and meanwhile, the driving gear 212 and the rack 205 are engaged, so that the bottom plate and the parts thereon (including two sets of lifting modules) realize transverse movement left and right under the driving of the second power assembly 213. The second sensor mounting groove 206 is provided with a second position sensor 208, and the sensing piece can feed back a position signal to the sensor in the process of transverse movement so as to detect the left and right limit positions and the switching position of the bottom plate.

The specific process of adopting the conveying device provided by the embodiment is as follows:

and (3) a bowl discharging process: generally speaking, a bowl outlet of the conveying device corresponds to the bowl clamping mechanism, in the bowl outlet process of each row of bowls, after the support table 111 on the lifting module (left) supports the row of edible bowls 112 to complete all output actions, the support table 111 reaches the lifting limit position, the sensing piece feeds back a position sensor signal to indicate that the row of bowls are used up, that is, the first driving mechanism completes all bowl arrangement work. Subsequently, the second driving mechanism 20 starts to operate, after the second driving mechanism 20 reaches a preset position, the sensing piece feeds back a position sensor signal, the transverse movement stops, the bowl is switched to the next row, namely, the bowl is switched to another first driving mechanism, and at this time, the supporting table 111 on the lifting module (on the right) supports the row of edible bowls 112 to complete all output actions.

A bowl adding process: after all the rows of edible bowls 112 are used up (two rows of edible bowls 112 in this embodiment), the supporting platform 111 has reached the upper limit position, the bowls are manually added to the supporting platform 111 of the first driving mechanism 10, the resetting operation is performed, the newly added bowls return to the initial position along with the supporting platform 111, that is, the lower limit position of the supporting platform 111 on the lifting module, and the bowls can be added simultaneously in multiple rows (two rows of edible bowls 112 in this embodiment).

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the space utilization rate of the whole equipment is improved, the number of the bowls is increased, the bowl adding frequency is reduced, and the operation efficiency of the whole equipment is improved.

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 relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

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.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

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.