阅读说明：本技术 制砂机的主机入料调节机构及制砂装置 (Main machine feeding adjusting mechanism of sand making machine and sand making device ) 是由 盛芯玉 刘灶 吴斌兴 于 2021-09-10 设计创作，主要内容包括：本发明提供一种制砂机的主机入料调节机构及制砂装置,制砂机包括至少两个主机并能够发出电流信号,制砂机的主机入料调节机构包括缓冲箱、分料板以及分料控制器,缓冲箱的顶部开设有砂石入料口,缓冲箱的底部通过溜管与主机连通；分料板竖向安装于缓冲箱内,分料板能够沿周向摆动并调节由溜管流入到每个主机的砂石量；分料控制器被配置为：获取两个主机的电流差值信号；响应于电流差值信号,并发出分料板摆动驱动信号。本发明通过在缓冲箱内增加可调节砂石进入主机方向的分料板,能根据主机的负荷情况电流大小自动调节入料方向,避免多个主机入料不均衡,浪费资源；也能避免主机入料过多造成堵料、人工处理砂石堵料情况,提高生产效率。(The invention provides a host feeding adjusting mechanism and a sand making device of a sand making machine, wherein the sand making machine comprises at least two hosts and can send current signals, the host feeding adjusting mechanism of the sand making machine comprises a buffer box, a material distributing plate and a material distributing controller, a sand stone feeding port is formed in the top of the buffer box, and the bottom of the buffer box is communicated with the hosts through a chute; the material distributing plate is vertically arranged in the buffer tank, can swing along the circumferential direction and can adjust the amount of sand and stone flowing into each main machine from the chute; the material distribution controller is configured to: acquiring current difference signals of two hosts; responding to the current difference signal and sending out a material distributing plate swing driving signal. According to the invention, the material distributing plate capable of adjusting the direction of the sandstone entering the host machine is additionally arranged in the buffer tank, so that the material feeding direction can be automatically adjusted according to the load condition current of the host machine, and the phenomena that the feeding of a plurality of host machines is unbalanced and the resources are wasted are avoided; the situation of material blockage and manual sand and stone blocking treatment caused by excessive feeding of the main machine can be avoided, and the production efficiency is improved.)

1. The utility model provides a system sand machine's host computer pan feeding adjustment mechanism, system sand machine include a plurality of hosts and can send current signal, its characterized in that, system sand machine's host computer pan feeding adjustment mechanism includes:

the sand and stone feeding device comprises a buffer box (100), wherein a sand and stone feeding port (110) is formed in the top of the buffer box (100), and the bottom of the buffer box (100) is communicated with a plurality of main machines in a one-to-one correspondence mode through a plurality of slide pipes (400);

a material distributing plate (300) which is arranged in the buffer box (100) and can swing along the circumferential direction so as to adjust the sand amount distributed to each chute (400); and

a feed controller (600), the feed controller (600) configured to:

acquiring respective current difference signals of a plurality of hosts;

and responding to the current difference signal, and sending a material distributing plate swing driving signal.

2. The main machine feeding adjusting mechanism of the sand making machine according to claim 1, wherein the material distributing plate (300) comprises a material baffle plate (310) and a plurality of lining plates (320) arranged at intervals along the extending direction of the material baffle plate (310), the lining plates (320) are obliquely connected with the material baffle plate (310), a first end of the material baffle plate (310) is fixedly connected with the buffer box (100), and a second end of the material baffle plate (310) can swing along the circumferential direction.

3. The main machine feeding adjusting mechanism of the sand making machine according to claim 2, wherein the number of the material distributing plates (300) is two, the first ends of the two material blocking plates (310) are respectively connected with two opposite side walls of the buffer box (100), and the lining plate (320) is located on one side of the material distributing plate (300) far away from the side walls of the buffer box (100).

4. The host pan feeding adjustment mechanism of a sand making machine according to claim 3, wherein the number of hosts is two and the hosts are arranged at intervals left and right, the material distribution controller (600) is in communication with the host and further configured to:

respectively acquiring current signals of a left host (501) and a right host (502);

comparing the obtained current signals of the left host (501) and the right host (502), and controlling the material distributing plate (300) close to the left host (501) to swing towards the right host (502) when the current of the left host (501) is larger than the current of the right host (502); when the current of the left host (501) is smaller than that of the right host (502), controlling the material distributing plate (300) close to the right host (502) to swing towards the direction of the left host (501);

when the current of the left main engine (501) is equal to the current of the right main engine (502), the two material distributing plates (300) are controlled to be restored to the vertical position.

5. The main machine feeding adjusting mechanism of the sand making machine according to claim 2, characterized in that the lining plates (320) are arranged in two rows and symmetrically arranged at two sides of the striker plate (310), the lining plates (320) at two sides of the striker plate (310) are in one-to-one correspondence, and the two lining plates (320) are connected into a V-shaped structure.

6. The host pan feeding adjustment mechanism of the sand making machine as claimed in claim 5, wherein the hosts are two and spaced left and right, the material distribution plate (300) is one and located at the middle position of the buffer box (100), and the material distribution controller (600) is in communication with the hosts and further configured to:

respectively acquiring current signals of a left host (501) and a right host (502);

comparing the obtained current signals of the left host (501) and the right host (502), and sending a driving signal for swinging the material distributing plate (300) to the left when the current of the left host (501) is greater than the current of the right host (502); or when the current of the left host (501) is smaller than the current of the right host (502), sending a driving signal for swinging the material distributing plate (300) to the right;

and when the current of the left host (501) is equal to the current of the right host (502), sending a driving signal for restoring the material distributing plate (300) to the vertical position.

7. The main body feeding adjusting mechanism of the sand making machine according to any one of the claims 1 to 6, further comprising a driving assembly (700) for driving the second end of the striker plate (310) to freely swing, wherein the driving assembly (700) is electrically connected with the material separating controller (600).

8. The main machine feeding adjusting mechanism of the sand making machine according to claim 7, wherein a rotating shaft (200) is installed in the buffer tank (100), a shaft sleeve (210) is sleeved on the outer periphery of the rotating shaft (200), the first end of the striker plate (310) is vertically welded on the shaft sleeve (210), and the driving assembly (700) is mechanically connected with the rotating shaft (200) and is used for driving the rotating shaft (200) to rotate.

9. The host pan feeding adjusting mechanism of the sand making machine as claimed in claim 8, wherein the shaft sleeve (210) and the rotating shaft (200) are detachably connected by a fastener (220), and a gasket (230) is arranged between the fastener (220) and the shaft sleeve (210).

10. A sand making apparatus, characterized in that the sand making apparatus comprises a sand making machine and a main machine material feeding adjusting mechanism of the sand making machine according to any one of claims 1 to 9.

Technical Field

The invention belongs to the technical field of sand making, and particularly relates to a main machine feeding adjusting mechanism of a sand making machine and a sand making device.

Background

The sandstone aggregate is the most widely applied material in the construction field, and with the exhaustion of natural sandstone and the increase of government environmental protection and improvement, the machine-made sandstone becomes the mainstream of the sandstone aggregate industry. The sand making machine is widely used for preparing machine-made gravels, two main machines are generally arranged for ensuring the sand making efficiency, and materials enter the main machines from a buffer box through a chute. The buffer tank can not adjust the materials for sliding the gravels into the main machines through the chute, so that the gravels in the two main machines are unbalanced, and the sand making machine is full of materials and is easy to block; the chute buffer box is internally provided with a flow dividing device, and the host machine is not provided with a feeding limiting device, so that the host machine is easily overloaded for production, and the motor is damaged and tripped.

Disclosure of Invention

Aiming at the defects or shortcomings in the prior art, the invention provides a main machine feeding adjusting mechanism of a sand making machine and a sand making device, and aims to solve the technical problems that double main machines of the sand making machine are unbalanced in feeding and easy to block materials, and resources are wasted.

In order to achieve the above object, the present invention provides a host feeding adjustment mechanism for a sand making machine, wherein the sand making machine comprises a plurality of hosts and can send current signals, and the host feeding adjustment mechanism for the sand making machine comprises:

the top of the buffer tank is provided with a sandstone feeding port, and the bottom of the buffer tank is communicated with the plurality of main machines in a one-to-one correspondence manner through a plurality of slide pipes;

the material distributing plate is vertically arranged in the buffer tank and can swing along the circumferential direction so as to adjust the amount of sand and stone distributed to each chute; and

a dispensing controller configured to:

acquiring respective current difference signals of a plurality of hosts;

and responding to the current difference signal, and sending a material distributing plate swing driving signal.

In the embodiment of the invention, the material distributing plate comprises a material baffle plate and a plurality of lining plates which are arranged at intervals along the extending direction of the material baffle plate, the lining plates are obliquely connected with the material baffle plate, the first end of the material baffle plate is fixedly connected with the buffer box, and the second end of the material baffle plate can swing along the circumferential direction.

In the embodiment of the invention, the number of the material distributing plates is two, the first ends of the two material blocking plates are respectively connected with the two opposite side walls of the buffer box, and the lining plate is positioned on one side of the material distributing plate, which is far away from the side walls of the buffer box.

In an embodiment of the present invention, the number of the hosts is two and the hosts are arranged at intervals left and right, and the material distribution controller is in communication with the hosts and is further configured to:

respectively acquiring current signals of a left host and a right host;

comparing the obtained current signals of the left host and the right host, and controlling the material distribution plate close to the left host to swing towards the right host when the current of the left host is larger than that of the right host; when the current of the left host is smaller than that of the right host, controlling the material distribution plate close to the right host to swing towards the left host;

and when the current of the left host machine is equal to the current of the right host machine, controlling the two material distributing plates to recover to the vertical position.

In the embodiment of the invention, two rows of lining plates are symmetrically arranged on two sides of the striker plate, the lining plates on the two sides of the striker plate correspond to each other one by one, and the two lining plates are connected into a V-shaped structure.

In the embodiment of the invention, the number of the hosts is two, the hosts are arranged at intervals left and right, the number of the material distribution plates is one, the material distribution plates are positioned in the middle of the buffer box, and the material distribution controller is communicated with the hosts and is further configured to:

respectively acquiring current signals of a left host and a right host;

comparing the obtained current signals of the left host and the right host, and sending a driving signal for swinging the material distributing plate leftwards when the current of the left host is greater than that of the right host; or when the current of the left host is smaller than that of the right host, a driving signal for swinging the material distributing plate to the right is sent;

and when the current of the left host is equal to the current of the right host, sending a driving signal for the material distributing plate to recover to the vertical position.

In the embodiment of the invention, the main machine feeding adjusting mechanism of the sand making machine further comprises a driving assembly for driving the second end of the material baffle to freely swing, and the driving assembly is electrically connected with the material distribution controller.

In the embodiment of the invention, a rotating shaft is installed in the buffer box, a shaft sleeve is sleeved on the periphery of the rotating shaft, the first end of the striker plate is vertically welded on the shaft sleeve, and the driving assembly is mechanically connected with the rotating shaft and used for driving the rotating shaft to rotate.

In the embodiment of the invention, the shaft sleeve and the rotating shaft are detachably connected by adopting the fastening piece, and the gasket is arranged between the fastening piece and the shaft sleeve.

In an embodiment of the present invention, a sand making device is further provided, where the sand making device includes a sand making machine and the host feeding adjusting mechanism of the sand making machine as described above.

Through the technical scheme, the main machine feeding adjusting mechanism of the sand making machine provided by the embodiment of the invention has the following beneficial effects:

the sand and stone enter the buffer box from a sand and stone feeding port at the top of the buffer box and flow into the main machine through the chute to make sand, and a material distributing plate is additionally arranged in the buffer box, so that the condition that the chute and the outer wall of the buffer box are impacted and abraded by the sand and stone can be reduced; in addition, the material distributing plate is additionally arranged in the buffer box and can swing along the circumferential direction, so that the direction of sand entering the host machine can be adjusted; in addition, the material distribution controller can acquire a current difference signal between the two hosts, and can automatically adjust the material feeding direction according to the current of the load condition of the hosts, so that the material feeding imbalance of the hosts and resource waste are avoided; the situation of material blockage and manual sand and stone blocking treatment caused by excessive feeding of the main machine can be avoided, and the production efficiency is improved.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide an understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a main machine material feeding adjusting mechanism of a sand making machine according to a first embodiment of the invention;

FIG. 2 is a schematic structural diagram of a buffer box in a host feeding adjusting mechanism of a sand making machine according to a first embodiment of the invention;

FIG. 3 is a schematic structural diagram of a material distributing plate in a host material feeding adjusting mechanism of a sand making machine according to a first embodiment of the invention;

FIG. 4 is a schematic structural diagram of a host material feeding adjusting mechanism of a sand making machine according to a second embodiment of the invention;

FIG. 5 is a schematic structural diagram of a buffer box in a host material feeding adjusting mechanism of a sand making machine according to a second embodiment of the invention;

FIG. 6 is a schematic structural diagram of a material distributing plate in a host material feeding adjusting mechanism of a sand making machine according to a second embodiment of the invention;

FIG. 7 is a control schematic diagram of a main machine material feeding adjusting mechanism of a sand making machine according to the invention.

Description of the reference numerals

100 buffer tank 310 striker plate

320 welts of 110 grit pan feeding mouth

200 rotating shaft 400 chute

210 shaft sleeve 501 left host

220 fastener 502 right host

230 gasket 600 divides material controller

300 divide flitch 700 drive assembly

Detailed Description

The following detailed description of specific embodiments of the invention refers to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.

The main machine feeding adjusting mechanism of the sand making machine according to the invention is described below with reference to the attached drawings.

Referring to fig. 1 and 4, in an embodiment of the present invention, a host feeding adjustment mechanism of a sand making machine is provided, the sand making machine includes at least a plurality of hosts and can send current signals, the host feeding adjustment mechanism of the sand making machine includes a buffer box 100, a material distribution plate 300 and a material distribution controller 600, a sand and stone feeding port 110 is opened at the top of the buffer box 100, and the bottom of the buffer box 100 is in one-to-one correspondence communication with the hosts through a plurality of chutes 400; the material distribution plate 300 is installed in the buffer tank 100 and can swing in the circumferential direction to adjust the amount of sand distributed to each chute 400; as shown in fig. 7, the dispensing controller 600 is electrically connected to the host, and the dispensing controller 600 is configured to: acquiring current difference signals of two hosts; responds to the current difference signal and sends out a material distributing plate 300 swing driving signal.

In the embodiment of the invention, the sand enters the buffer box 100 from the sand feeding port 110 at the top of the buffer box 100 and flows into the main machine through the chute 400 to prepare sand, and the material distributing plate 300 is additionally arranged in the buffer box 100, so that the situation that the chute 400 and the outer wall of the buffer box 100 are impacted and abraded by the sand can be reduced; in addition, the material distributing plate 300 is vertically arranged in the buffer tank 100, the material distributing plate 300 can swing along the circumferential direction, and the material distributing plate 300 plays a role in distributing and guiding, so that the direction of sand entering the host machine can be adjusted; in addition, the material distribution controller 600 can acquire a current difference signal between the two hosts, and can automatically adjust the material feeding direction according to the current of the load condition of the hosts, so that the material feeding imbalance of the hosts is avoided, and the resource waste is avoided; the situation of material blockage and manual sand and stone blocking treatment caused by excessive feeding of the main machine can be avoided, and the production efficiency is improved.

In the embodiment of the invention, the material distributing plate 300 includes a material baffle plate 310 and a plurality of lining plates 320 arranged at intervals along the extending direction of the material baffle plate 310, the lining plates 320 are connected with the material baffle plate 310 in an inclined manner, a first end of the material baffle plate 310 is fixedly connected with the buffer box 100, and a second end of the material baffle plate 310 hangs down freely and can swing along the circumferential direction.

It should be noted that the lining plates 320 are connected with the striker plate 310 in an inclined manner, and the inclination directions and inclination angles of the lining plates 320 sequentially arranged from top to bottom are consistent, so that the lining plates 320 can separate sand and stone and also can guide flow. One end of the striker plate 310 is fixedly connected to the inner side wall of the buffer box 100, and the other end of the striker plate 310 hangs down freely.

In the first embodiment of the present invention, as shown in fig. 1 to 3, the number of the material separating plates 300 is two, the first ends of the two striker plates 310 are respectively connected to two opposite side walls of the buffer tank 100, and the liner plate 320 is located at a side of the material separating plate 300 away from the side walls of the buffer tank 100.

The lining boards 320 on one side of the distributing plate 300 are arranged in a row along the up-down direction, in the first embodiment, only one row of lining boards 320 on the distributing plate 300 is provided, the number of the distributing plates 300 is two and is respectively close to the left side wall and the right side wall of the buffer box 100, the rows of lining boards 320 on the two distributing plates 300 are oppositely arranged and are far away from the side wall of the buffer box 100, and thus the lining boards 320 can well perform balanced distribution on the sand entering the buffer box 100. Wherein the free ends of both the material distributing plates 300 in the first embodiment are located below, so that the lower free ends of the material distributing plates 300 can swing around the fixed ends. The direction of entering into in the host computer grit can be adjusted through the swing cooperation to two branch flitchs 300.

Wherein, in the first embodiment, the quantity of host computer is two and left and right sides interval arrangement, and two branch flitchs 300 on the left and right sides correspond the host computer setting and correspond the grit volume that enters into different host computers with the left and right sides respectively, in addition, divide material controller 600 and host computer communication and further be configured as:

respectively acquiring current signals of a left host 501 and a right host 502;

comparing the obtained current signals of the left host 501 and the right host 502, and controlling the material distributing plate 300 close to the left host 501 to swing towards the right host 502 when the current of the left host 501 is larger than the current of the right host 502; when the current of the left host 501 is smaller than that of the right host 502, the material distributing plate 300 close to the right host 502 is controlled to swing towards the left host 501;

when the current of the left-side master 501 is equal to the current of the right-side master 502, the two material distributing plates 300 on the left side and the material distributing plates 300 on the right side are controlled to recover to vertical position driving signals.

When the work is started, the current of the host machine transmits a signal to the material distribution controller 600, the material distribution controller 600 drives the material distribution plate 300 to stop the material, and the material of the buffer box 100 enters the host machine for feeding and distributing. Meanwhile, the left host 501 and the right host 502 respectively send respective current signals to the distribution controller 600, and the distribution controller 600 receives and compares the two host current signals;

when the current of the left host 501 is larger than that of the right host 502 and the current difference between the two hosts exceeds the preset value, the host current difference signal is transmitted to the material distribution controller 600, the material distribution controller 600 drives the servo motor to drive the bottom of the left material distribution plate 300 to be lifted to 45 degrees to the right, and most of sand and stone feeding enters the right host 502. When the current on the two sides gradually reduces the difference, the material distributing plate 300 on the left side is slowly put down;

when the current of the right host 502 is larger than that of the left host 501, and the current difference value of the two hosts exceeds the preset value, the host current difference signal is transmitted to the material distribution controller 600, the material distribution controller 600 drives the servo motor to drive the right material distribution plate 300 to be lifted to 45 degrees leftwards, and most of sand and stone feeding enters the left host 501. When the current on the two sides gradually reduces the difference, the material distributing plate 300 on the right side is slowly put down;

and when the current of the two hosts continues to have a difference value, the steps are circulated until the difference value of the current of the two hosts is recovered to a preset difference value.

In the second embodiment of the present invention, as shown in fig. 4 to 6, the liner plates 320 are arranged in two rows and symmetrically arranged on two sides of the striker plate 310, the liner plates 320 located on two sides of the striker plate 310 correspond to each other one by one, and the two liner plates 320 are connected into a "V" shape structure, the free end of the striker plate 310 is located above, and the fixed end of the striker plate 310 is fixedly connected to the bottom of the buffer tank 100, so that the upper end of the striker plate 310 can swing around the fixed end.

The both sides of striker plate 310 all are provided with a row of welt 320, and two rows of welts 320 of both sides are along striker plate 310 symmetrical arrangement, all connect the same position of striker plate 310 between two welts 320 that are located same water flat line, and transverse arrangement forms "V" style of calligraphy structure between two welts 320 of striker plate 310 both sides like this, and the welt 320 that is listed as like this is the same to the regulation dynamics that enters into two host computer on a left side and a right side grit volume.

Wherein, in the second embodiment, the number of the hosts is two and the hosts are arranged at intervals left and right, the number of the material distributing plates 300 is one and the material distributing plates are located at the middle position of the buffer box 100, and the material distributing controller 600 is in communication with the hosts and is further configured to:

respectively acquiring current signals of a left host 501 and a right host 502;

comparing the obtained current signals of the left host 501 and the right host 502, and sending a driving signal for swinging the material distributing plate 300 to the left when the current of the left host 501 is larger than the current of the right host 502; or when the current of the left host 501 is smaller than the current of the right host 502, a signal for driving the material distributing plate 300 to swing rightwards is sent out;

when the current of the left host 501 is equal to the current of the right host 502, a driving signal for returning the material distributing plate 300 to the vertical position is sent out.

When the machine starts to work, the current of the host machine transmits a signal to the material distribution controller 600, the material distribution controller 600 drives the material distribution plate 300 to stop materials, and the materials of the buffer box 100 enter the host machine for feeding and distributing;

when the current of the left host 501 is larger than that of the right host 502, and the current difference value of the two hosts exceeds the preset value, the host current difference signal is transmitted to the material distribution controller 600, the material distribution controller 600 drives the servo motor to drive the material distribution plate 300 to incline leftwards by 45 degrees, and most of sand and stone feeding enters the right host 502. When the difference between the currents on the two sides is gradually reduced, the material distributing plate 300 is recovered to be vertical for 90 degrees;

when the current of the right host 502 is larger than that of the left host 501, and the current difference value of the two hosts exceeds the preset value, the host current difference signal is transmitted to the material distribution controller 600, the material distribution controller 600 drives the servo motor to drive the material distribution plate 300 to incline 45 degrees rightwards, and most of sand and stone feeding enters the left host 501. When the difference between the currents on the two sides is gradually reduced, the material distributing plate 300 is recovered to be vertical for 90 degrees;

and when the current difference value of the two hosts occurs, the steps are circulated until the current difference value of the two hosts is recovered to the preset difference value.

In the embodiment of the invention, the main body feeding adjusting mechanism of the sand making machine further comprises a driving assembly 700 for driving the second end of the striker plate 310 to swing freely, and the driving assembly 700 is electrically connected with the material distribution controller 600.

In the embodiment of the present invention, the host sends a current signal to the material distribution controller 600, and the material distribution controller 600 sends a swing driving signal to the driving assembly 700 according to the current signal information of the host, and controls the driving assembly 700 to drive the swing direction and angle of the material distribution plate 300, so as to achieve the purpose of adjusting the amount of sand entering different hosts by using the material distribution plate 300.

In the embodiment of the present invention, the rotation shaft 200 is installed in the buffer box 100, the shaft sleeve 210 is sleeved on the outer circumference of the rotation shaft 200, the first end of the striker plate 310 is vertically welded to the shaft sleeve 210, and the driving assembly 700 is mechanically connected to the rotation shaft 200 and is used for driving the rotation shaft 200 to rotate.

Wherein, drive assembly 700 includes servo motor, is connected through the gear assembly between servo motor's the output shaft and the rotation axis 200, when servo motor's output shaft was rotatory, can drive rotation axis 200 simultaneously rotatory through the gear, because the first end of striker plate 310 passes through axle sleeve 210 and welds on rotation axis 200, can drive the second end (free end) of striker plate 310 when rotation axis 200 is rotatory and swing along circumference. And, the material distribution controller 600 adjusts the swing direction of the material distribution plate 300 by controlling the forward rotation and the reverse rotation of the servo motor.

In the embodiment of the present invention, the shaft sleeve 210 is detachably coupled to the rotation shaft 200 using the fastening member 220, and the washer 230 is disposed between the fastening member 220 and the shaft sleeve 210. Wherein the fastening member 220 is a taper pin which passes through the bushing 210 and the rotation shaft 200, thereby connecting the bushing 210 and the rotation shaft 200. The material distributing plate 300 is fixed on the bearing through the shaft sleeve 210 and the taper pin, when the material distributing plate 300 is worn, the material distributing plate 300 can be replaced, and the structure is flexible and convenient.

In an embodiment of the present invention, a sand making device is further provided, where the sand making device includes a sand making machine and the host feeding adjusting mechanism of the sand making machine as described above. Because this system sand device has adopted above all embodiments of host computer pan feeding adjustment mechanism, consequently have above-mentioned all beneficial effects of host computer pan feeding adjustment mechanism, no longer give unnecessary details here.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any 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 description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. 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.