阅读说明：本技术 一种立体叠层养猪系统 (Three-dimensional laminated pig raising system ) 是由 吕晓能 包木才 陈嘉杰 李臻 梁启新 于 2021-01-04 设计创作，主要内容包括：本发明涉及一种立体叠层养猪系统。所述一种立体叠层养猪系统包括：饲养房体、分隔机构、回收机构、排污输送件、接料部与多个饲养栏,所述分隔机构装设在所述饲养房体中并沿所述饲养房体的高度方向将所述饲养房体分隔为两个以上饲养层,多个所述饲养栏装设在所述饲养层中,所述分隔机构上开设有排污孔,所述接料部用于接收所述排污孔导出的粪污,所述排污输送件与所述接料部可移动配合,且所述回收机构用于接收所述接料部中的粪污。上述一种立体叠层养猪系统实现了对粪污的有效处理,保证了一种立体叠层养猪系统的使用效果。(The invention relates to a three-dimensional laminated pig raising system. The three-dimensional laminated pig raising system comprises: raise the room body, separate mechanism, retrieve mechanism, blowdown and carry piece, connect material portion and a plurality of fence of raising, separate the mechanism and install raise in the room body and follow the direction of height of raising the room body will raise the room body and separate for raising the layer more than two, it is a plurality of raise the fence and install in raising the layer, the blowhole has been seted up on the separate mechanism, connect material portion to be used for receiving the excrement that the blowhole was derived is dirty, the blowdown carry the piece with connect the portable cooperation of material portion, just it is used for receiving to retrieve the mechanism the excrement in material portion is dirty. Above-mentioned three-dimensional stromatolite pig raising system has realized the effective processing to the excrement and has guaranteed the result of use of a three-dimensional stromatolite pig raising system.)

1. A stereoscopic laminated pig-raising system, characterized in that it comprises: raise the room body, separate mechanism, retrieve mechanism, blowdown and carry piece, connect material portion and a plurality of fence of raising, separate the mechanism and install raise in the room body and follow the direction of height of raising the room body will raise the room body and separate for raising the layer more than two, it is a plurality of raise the fence and install in raising the layer, the blowhole has been seted up on the separate mechanism, connect material portion to be used for receiving the excrement that the blowhole was derived is dirty, the blowdown carry the piece with connect the portable cooperation of material portion, just it is used for receiving to retrieve the mechanism the excrement in material portion is dirty.

2. The three-dimensional laminated pig raising system according to claim 1, wherein the recycling mechanism comprises a septic tank and a feces discharging pipe, the septic tank is arranged at the bottom of the feeding room body, the feces discharging pipe is used for guiding feces in the septic tank out, after the separating mechanism is arranged in the feeding room body, a sewage discharging channel is formed between the separating mechanism and the feeding room body, the sewage discharging channel is communicated with the septic tank, and the material receiving part is communicated with the sewage discharging channel.

3. The stereo laminated pig raising system according to claim 2, wherein the receiving part is provided with a receiving groove for receiving the excrement from the sewage discharge hole, the sewage discharge conveying member moves in the receiving groove, and the receiving groove is communicated with the receiving end of the recovery mechanism.

4. The three-dimensional laminated pig raising system according to claim 3, wherein the material receiving part comprises a first splicing plate, a second splicing plate and a third splicing plate, the first splicing plate, the second splicing plate and the third splicing plate are matched to form the material receiving groove, when the blowdown conveying member is arranged in the material receiving groove, the first splicing plate and the second splicing plate are respectively positioned on two sides of the blowdown conveying member, and the first splicing plate and the second splicing plate are protruded out of the blowdown conveying member along the height direction of the blowdown conveying member.

5. The three-dimensional laminated pig raising system according to claim 3, wherein the sewage conveying member comprises a driving member, a sewage conveying belt and a sewage scraping plate, the sewage conveying belt is rotatably arranged in the receiving groove and is used for conveying the sewage falling in the receiving groove, and the sewage scraping plate is used for abutting fit of one end of the sewage conveying belt facing the recovery mechanism.

6. The stereo laminated pig raising system according to claim 5, wherein the sewage conveyor belt is provided with a sewage draining groove for receiving the excrement.

7. The stereoscopic laminated pig raising system according to claim 2, wherein the drainage conveying member comprises a traction member and a drainage member, the drainage member is movably arranged in the receiving groove, the traction member is connected with the drainage member, and the traction member is used for driving the drainage member to reciprocate in the receiving groove.

8. The three-dimensional laminated pig raising system according to claim 7, further comprising a first guide plate and a second guide plate, wherein one side of the first guide plate is attached to one surface, facing the material receiving portion, of the separating mechanism, the other side of the first guide plate is attached to one side of the material receiving portion, one side of the second guide plate is attached to one surface, facing the material receiving portion, of the separating mechanism, and the other side of the second guide plate is attached to the other side of the material receiving portion.

9. The three-dimensional laminated pig raising system according to claim 7, wherein the drainage member is provided with a first guide wheel set and a second guide wheel set, the bottom wall of the receiving trough is provided with a first guide groove and a second guide groove at intervals, the first guide wheel set is movably matched with the first guide groove, and the second guide wheel set is movably matched with the second guide groove.

10. A laminated stereotactic pig farming system according to any of the claims 1 to 9 further comprising ventilation means housed within said feeding housing.

Technical Field

The invention relates to the technical field of livestock breeding, in particular to a three-dimensional laminated pig raising system.

Background

When a pig factory breeds pigs, the pig factory needs larger and larger breeding space along with the continuous increase of the number of the pigs. Therefore, in order to ensure the feeding space of each pig, the farm is raised in a building type, but the pigs can discharge excrement when living, such as: when the excrement to more than the second floor is dirty to be cleared up, the dirty outflow of excrement or the unrestrained condition often can appear to make the mode of raising of traditional building formula structure relatively poor in effect.

Disclosure of Invention

Therefore, a three-dimensional laminated pig raising system is needed to be provided for solving the problem that the feeding mode of the traditional building type structure is poor in effect.

A three-dimensional laminated pig raising system. The three-dimensional laminated pig raising system comprises: raise the room body, separate mechanism, retrieve mechanism, blowdown and carry piece, connect material portion and a plurality of fence of raising, separate the mechanism and install raise in the room body and follow the direction of height of raising the room body will raise the room body and separate for raising the layer more than two, it is a plurality of raise the fence and install in raising the layer, the blowhole has been seted up on the separate mechanism, connect material portion to be used for receiving the excrement that the blowhole was derived is dirty, the blowdown carry the piece with connect the portable cooperation of material portion, just it is used for receiving to retrieve the mechanism the excrement in material portion is dirty.

In one embodiment, retrieve the mechanism and include manure collecting tank and excrement pipe, manure collecting tank establishes raise the bottom of the room body, excrement pipe is used for with the excrement in the manure collecting tank is dirty to be derived, works as separate the mechanism install raise after in the room body, separate the mechanism with it is formed with sewage pipes to raise between the room body, sewage pipes with manure collecting tank is linked together, connect material portion with sewage pipes is linked together.

In one embodiment, the material receiving part is provided with a material receiving groove, the material receiving groove is used for receiving excrement led out from the sewage discharge hole, the sewage discharge conveying piece moves in the material receiving groove, and the material receiving groove is communicated with the receiving end of the recovery mechanism.

In one embodiment, the material receiving part comprises a first splicing plate, a second splicing plate and a third splicing plate, the first splicing plate, the second splicing plate and the third splicing plate are matched to form the material receiving groove, when the sewage draining conveying piece is arranged in the material receiving groove, the first splicing plate and the second splicing plate are respectively positioned on two sides of the sewage draining conveying piece, and the first splicing plate and the second splicing plate are all protruded out of the sewage draining conveying piece along the height direction of the sewage draining conveying piece.

In one embodiment, the dirt discharging conveying member comprises a driving member, a dirt discharging conveying belt and a dirt scraping plate, the dirt discharging conveying belt is rotatably arranged in the receiving groove and is used for conveying dirt falling in the receiving groove, and the dirt scraping plate is used for abutting and matching one end, facing the recycling mechanism, of the dirt discharging conveying belt.

In one embodiment, the sewage conveying belt is provided with a sewage groove for receiving the sewage.

In one embodiment, the drainage conveying member comprises a traction member and a drainage member, the drainage member is movably arranged in the receiving groove, the traction member is connected with the drainage member, and the traction member is used for driving the drainage member to reciprocate in the receiving groove.

In one embodiment, the three-dimensional laminated pig raising system further comprises a first guide plate and a second guide plate, one side of the first guide plate is attached to one surface, facing the material receiving portion, of the separating mechanism, the other side of the first guide plate is attached to one side of the material receiving portion, one side of the second guide plate is attached to one surface, facing the material receiving portion, of the separating mechanism, and the other side of the second guide plate is attached to the other side of the material receiving portion.

In one embodiment, the drainage member is provided with a first guide wheel set and a second guide wheel set, the bottom wall of the material receiving groove is provided with a first guide groove and a second guide groove at intervals, the first guide wheel set is movably matched with the first guide groove, and the second guide wheel set is movably matched with the second guide groove.

In one embodiment, the three-dimensional laminated pig raising system further comprises a ventilation mechanism, wherein the ventilation mechanism is arranged inside the feeding house body.

When the three-dimensional laminated pig raising system is used, firstly, the feeding columns required to be used are determined according to the number of pigs, and the layering (for example, two layers or three layers and the like) of the separation mechanisms in the feeding house body is determined according to the height of the feeding house body and the number of the feeding columns. This kind of mode make full use of promptly raises the vertical height of the room body, when being in the pig more than two layers and blowdown, can be according to the blowdown position of pig in raising the fence, correspond the trompil (indicate the blowhole) on separating the mechanism, the excrement that the pig discharged this moment can drop in the material receiving part through the blowhole, then, carry the piece to pushing away the fortune to the excrement that drops in the material receiving part through the blowdown, because the excrement drops in the position of material receiving part different, the blowdown is carried the piece and can be pushed away the fortune to the excrement that different positions were gathered towards the in-process that the recovery mechanism removed in the material receiving part, and finally push the excrement and dirty and retrieve in the mechanism. In this in-process promptly, connect the material portion to realize prestoring dirty to the excrement, avoided the excrement dirt promptly to spill or outflow behind the blowhole. Then, the excrement and sewage recovered by the material feeding part is pushed and transported uniformly under the action of the sewage discharge conveying part, and finally, all the excrement and sewage on the layer are recovered uniformly through a recovery mechanism. Above-mentioned three-dimensional stromatolite pig raising system has realized the effective processing to the excrement and has guaranteed the result of use of a three-dimensional stromatolite pig raising system.

Drawings

FIG. 1 is a schematic cross-sectional view of a three-dimensional laminated pig-raising system;

FIG. 2 is a schematic structural diagram of a three-dimensional stacked pig-raising system according to an embodiment;

fig. 3 is a schematic structural diagram of a three-dimensional laminated pig-raising system according to another embodiment.

100. Raise the room body, 110, first baffle, 120, second baffle, 200, partition mechanism, 300, retrieve the mechanism, 310, manure collection pit, 320, excrement pipe, 400, blowdown conveying member, 401, blowdown conveyer belt, 410, draw the piece, 420, blowdown piece, 500, connect material portion, 501, connect the silo, 510, first splice plate, 520, second splice plate, 530, third splice plate, 600, raise the fence, 610, location fence, 620, childbirth fence, 700, ventilation mechanism.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1 to 3, in one embodiment, the three-dimensional stacked pig-raising system includes: raise the room body 100, separate mechanism 200, retrieve mechanism 300, blowdown and carry piece 400, connect material portion 500 and a plurality of fence 600 of raising, separate mechanism 200 and install raise in the room body 100 and follow the direction of height of raising the room body 100 will raise the room body 100 and separate for two above layers of raising, it is a plurality of raise the fence 600 and install in the layer of raising, separate and seted up the blowhole on the mechanism 200, connect material portion 500 to be used for receiving the excrement that the blowhole was derived is dirty, the blowdown carry piece 400 with connect material portion 500 movable fit, just it is used for receiving to retrieve mechanism 300 the excrement in the material portion 500 is dirty.

When the three-dimensional laminated pig raising system is used, firstly, the feeding columns 600 required to be used are determined according to the number of pigs, and the layering (for example, two layers or three layers and the like) of the separation mechanisms 200 in the feeding house body 100 is determined according to the height of the feeding house body 100 and the number of the feeding columns 600. That is to say, the longitudinal height of the feeding room body 100 is fully utilized in the above manner, when the pigs at more than two layers are discharged, corresponding holes (referred to as discharge holes) can be formed in the separating mechanism 200 according to the discharge positions of the pigs in the feeding fence 600, the excrement discharged by the pigs can fall into the material receiving portion 500 through the discharge holes, then the excrement falling into the material receiving portion 500 is pushed and transported through the sewage transport piece 400, and the excrement falling into the material receiving portion 500 can be pushed, transported and collected in different positions in the process of moving towards the recovery mechanism 300 in the material receiving portion 500 by the sewage transport piece 400, and finally pushed into the recovery mechanism 300 for recovery. In this process, the material receiving part 500 pre-stores the excrement, so that the excrement is prevented from being scattered or flowing out after passing through the sewage discharge hole. Then, the excrement collected by the material collecting part 500 is pushed and transported uniformly under the action of the sewage discharging conveying piece 400, and finally, the uniform collection of all the excrement on the layer is realized through the collecting mechanism 300. Above-mentioned three-dimensional stromatolite pig raising system has realized the effective processing to the excrement and has guaranteed the result of use of a three-dimensional stromatolite pig raising system.

As shown in fig. 1, in one embodiment, the recycling mechanism 300 includes a manure collecting tank 310 and a manure discharging pipe 320, the manure collecting tank 310 is disposed at the bottom of the feeding room body 100, the manure discharging pipe 320 is used for guiding out manure in the manure collecting tank 310, when the separating mechanism 200 is installed in the feeding room body 100, a sewage discharging channel is formed between the separating mechanism 200 and the feeding room body 100, the sewage discharging channel is communicated with the manure collecting tank 310, and the material receiving portion 500 is communicated with the sewage discharging channel. Specifically, the opening area of the septic tank 310 is first determined according to the internal space of the living room and the feeding space required for the swinery. In this embodiment, an opening of the manure collecting pit 310 is opened at the bottom of the feeding house body 100, that is, the manure collecting pit 310 for collecting manure is dug deep on the ground. Such an embodiment can save the space in the feeding room body 100 and improve the space utilization rate of the feeding room body 100. Further, the partition mechanism 200 may be a partition plate or a partition rod. According to actual conditions, the feeding room body 100 is divided into more than two feeding layers through the separating mechanism 200, and meanwhile, the corresponding material receiving part 500 and the feces conveying piece are arranged at each separating mechanism 200, so that feces on different feeding layers can be cleaned. In addition, considering that the excrement at the upper layer passes through the feeding area at the lower layer when dropping to the manure collecting tank 310, in order to prevent the excrement at the upper layer from accidentally dropping to the feeding area at the lower layer (for example, in the feeding fence 600 at the lower layer), a sewage baffle plate can be arranged in the sewage channel to block the feeding area at the lower layer.

As shown in fig. 1 to 3, in an embodiment, the material receiving portion 500 is provided with a material receiving groove 501, the material receiving groove 501 is used for receiving the excrement discharged from the sewage discharge hole, the sewage discharge conveying member 400 moves in the material receiving groove 501, and the material receiving groove 501 is communicated with the receiving end of the recovery mechanism 300. Specifically, when the material receiving portion 500 is installed, a supporting rod may be erected between two adjacent partition boards, or a supporting rod may be erected on the bottom surfaces of the partition mechanism 200 and the feeding room body 100, then a supporting plate is installed on the supporting rod, and finally the material receiving portion 500 is installed on the supporting plate. Such an embodiment as described above achieves effective support of the material portion 500. In addition, the excrement can be cleaned and pushed in the material receiving groove 501, so that the accidental outflow or sprinkling of the excrement can be effectively avoided, and the cleaning effect of the material receiving part 500 and the sewage conveying piece 400 is ensured.

As shown in fig. 2, in an embodiment, the material receiving portion 500 includes a first splicing plate 510, a second splicing plate 520, and a third splicing plate 530, the first splicing plate 510, the second splicing plate 520, and the third splicing plate 530 cooperate to form the material receiving slot 501, when the drainage transport member 400 is installed in the material receiving slot 501, the first splicing plate 510 and the second splicing plate 520 are respectively located at two sides of the drainage transport member 400, and both the first splicing plate 510 and the second splicing plate 520 protrude from the drainage transport member 400 along a height direction of the drainage transport member 400. Specifically, the first splicing plate 510, the second splicing plate 520 and the third splicing plate 530 can be integrally formed or spliced. In this embodiment, third splice plate 530 is the diapire that connects silo 501, first splice plate 510 and second splice plate 520 are the lateral wall that connects silo 501, first splice plate 510 is the contained angle setting with third splice plate 530, second splice plate 520 is the contained angle setting with third splice plate 530, first splice plate 510 promptly, can be the loudspeaker form after second splice plate 520 and the completion of the concatenation of third splice plate 530, the excrement that is convenient for of above-mentioned this kind of structure is collected in connecing silo 501 more. In addition, the first splicing plate 510 and the second splicing plate 520 protrude from the surface of the sewage conveying element 400 for receiving the excrement, so that the phenomenon that the excrement is scattered when the sewage conveying element 400 conveys the excrement can be effectively avoided.

As shown in fig. 2, in one embodiment, the dirt discharging conveying member 400 includes a driving member (not shown), a dirt discharging conveyer belt 401 and a dirt scraping plate (not shown), the dirt discharging conveyer belt 401 is rotatably installed in the receiving groove 501, the dirt discharging conveyer belt 401 is used for conveying the dirt falling in the receiving groove 501, and the dirt scraping plate is used for interference fit with one end of the dirt discharging conveyer belt 401 facing the recycling mechanism 300. Specifically, the driving member is a servo motor or a bidirectional motor. Drive blowdown through the driving piece and carry piece 400 and carry out circumferential direction in connecing silo 501, simultaneously, consider that the excrement is dirty after on dribbling blowdown conveyer belt 401, and partial excrement is dirty can adhere on blowdown conveyer belt 401. Therefore, the dirt scraping plate is disposed at one end of the dirt discharging and conveying belt 401 facing the recycling mechanism 300, that is, a part of the dirt falls into the recycling mechanism 300 under the action of gravity, and the other part of the dirt is scraped into the recycling mechanism 300 under the action of the dirt scraping plate. The above embodiment prevents the feces from being retained on the sewage draining conveyer belt 401, thereby improving the feces cleaning effect.

In one embodiment, the dirt-discharging conveyer belt 401 is provided with a dirt-discharging groove for receiving the dirt. Specifically, the above embodiment realizes the wrapping effect on the excrement through the sewage draining groove, i.e. the phenomenon of scattering or outflow of the excrement when the excrement moves along with the sewage draining conveyer belt 401 is effectively avoided.

As shown in fig. 1, in one embodiment, the drainage conveying member 400 includes a pulling member 410 and a drainage member 420, the drainage member 420 is movably disposed in the receiving trough 501, the pulling member 410 is connected to the drainage member 420, and the pulling member 410 is configured to drive the drainage member 420 to reciprocate in the receiving trough 501. Specifically, the traction element 410 includes a traction rope and a traction motor. The drain 420 is a drain or scraper. The placement position of the traction motor in the feeding room body 100 is determined according to actual needs, for example: the traction motor can be arranged outside the material receiving part 500, and the traction motor drives the sewage discharging part 420 to move in the material receiving groove 501 through a traction rope. At this time, the dirt-discharging member 420 can push and collect the dirt dropped in the material receiving tank 501 during the moving process. Further, when driving blowdown piece 420 through the haulage rope and removing, can be used for removing complex traction disc with the haulage rope to carry out appropriate position adjustment to blowdown piece 420, avoid the traction disc on blowdown piece 420 to be located the material receiving range that connects silo 501, this moment alright with on avoiding excrement to pollute and fall traction disc or haulage rope. In addition, the central controller can electrically control the traction piece 410 and the sewage discharging piece 420, that is, the central controller determines the action period of the traction piece 410 and the sewage discharging piece 420 according to the collection speed of the excrement of different feeding layers, thereby realizing the automatic cleaning of the excrement.

As shown in fig. 2 and 3, in an embodiment, the three-dimensional laminated pig raising system further includes a first guide plate 110 and a second guide plate 120, one side of the first guide plate 110 is attached to a surface of the separating mechanism 200 facing the material receiving portion 500, the other side of the first guide plate 110 is attached to one side of the material receiving portion 500, one side of the second guide plate 120 is attached to a surface of the separating mechanism 200 facing the material receiving portion 500, and the other side of the second guide plate 120 is attached to the other side of the material receiving portion 500. Specifically, after the material receiving portion 500 is installed, a certain space is left between the material receiving portion 500 and the separating mechanism 200, and at this time, in order to ensure that the fecal sewage can accurately fall into the material receiving portion 500 after being guided out through the sewage draining hole, the first guide plate 110 and the second guide plate 120 are additionally arranged between the separating mechanism 200 and the material receiving portion 500. Further, the first guide plate 110 is disposed at an angle with one side wall of the material receiving portion 500, and the second guide plate 120 is disposed at an angle with the other side wall of the material receiving portion 500. That is, the first guide plate 110, the second guide plate 120 and the material receiving portion 500 form a horn-shaped structure, so that on one hand, the effect that feces drop into the material receiving portion 500 can be ensured, and on the other hand, the feces remaining on the first guide plate 110 and the second guide plate 120 is also avoided.

In one embodiment, the drainage member 420 is provided with a first guide wheel set and a second guide wheel set, the bottom wall of the material receiving slot 501 is provided with a first guide slot and a second guide slot at an interval, the first guide wheel set is movably engaged with the first guide slot, and the second guide wheel set is movably engaged with the second guide slot. Specifically, through set up first guide way and second guide way on the diapire that connects silo 501 to make blowdown piece 420 can remove in connecing silo 501 more smoothly, guaranteed the removal effect of blowdown piece 420.

As shown in fig. 2, in one embodiment, the three-dimensional stacked pig-raising system further comprises a ventilation mechanism 700, wherein the ventilation mechanism 700 is installed inside the feeding house body 100. Specifically, the ventilation mechanism 700 may be a ventilation fan or an air conditioner. The temperature inside the feeding room body 100 is adjusted or the gas is ventilated by the ventilation mechanism 700. Further, for an area with a high local temperature or a high local humidity, a ventilation pipe may be added, that is, an airflow is introduced into a target area through the ventilation pipe, so that targeted treatment of the local area (target area) is realized.

As shown in fig. 2, in one embodiment, the feeding bar 600 includes a location bar 610 and a birth bar 620. When the positioning fence 610 is arranged in the feeding layer, the pigs are usually subjected to dung discharge in the local area of the positioning fence 610 in the positioning fence 610, so that the material receiving range of the material receiving part 500 only needs to cover the local area of the positioning fence 610. When the delivery pen 620 is arranged in the feeding layer, the receiving range of the receiving portion 500 needs to cover the whole delivery area of the delivery pen 620 when the receiving portion 500 is arranged, because the pigs are easy to restless before delivery, namely, the pigs can discharge excrement in any area of the delivery pen 620.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

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 device or element must have a particular orientation, be constructed and operated in a particular orientation, and are 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; can be mechanically or electrically connected; 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.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.