阅读说明：本技术 一种带自清洁过滤功能的供水系统 (Water supply system with self-cleaning filtering function ) 是由 王伟华 李亚斐 马超 董秋伟 王卫乔 王乔宾 薛冬 王林涛 王浩权 金明钰 王茂 于 2021-08-13 设计创作，主要内容包括：本发明公开了一种带自清洁过滤功能的供水系统,包括清洁筒和集废筒,所述集废筒连通设置于所述清洁筒底端,所述清洁筒内部竖向贯穿有传动杆,所述清洁筒外顶部一侧横向设置有供水管道,该供水管道与所述清洁筒之间连通有引水管道,所述供水管道内部设置有驱动杆,所述集废筒底端可拆卸设置有辅助筒,所述清洁筒远离所述引水管道一侧连通有出水管。有益效果在于：本发明通过在供水管道内部设置利用水流作为动力的过滤清洁设备,将供水管道内部水中的杂质及时滤出,同时可对滤出的杂质聚集到集废筒内,在开启集废筒底部开口以排出杂质过程中可自动封闭集废筒顶端开口,从而无需断开供水系统,确保在清理杂质过程中可持续供水,实用性强。(The invention discloses a water supply system with a self-cleaning filtering function, which comprises a cleaning cylinder and a waste collecting cylinder, wherein the waste collecting cylinder is communicated and arranged at the bottom end of the cleaning cylinder, a transmission rod vertically penetrates through the interior of the cleaning cylinder, one side of the top of the exterior of the cleaning cylinder is transversely provided with a water supply pipeline, a water diversion pipeline is communicated between the water supply pipeline and the cleaning cylinder, a driving rod is arranged in the water supply pipeline, the bottom end of the waste collecting cylinder is detachably provided with an auxiliary cylinder, and one side of the cleaning cylinder, which is far away from the water diversion pipeline, is communicated with a water outlet pipe. Has the advantages that: according to the invention, the filtering and cleaning device which utilizes water flow as power is arranged in the water supply pipeline, so that impurities in water in the water supply pipeline are filtered out in time, the filtered impurities can be gathered in the waste collecting cylinder, and the opening at the top end of the waste collecting cylinder can be automatically closed in the process of opening the opening at the bottom of the waste collecting cylinder to discharge the impurities, so that a water supply system does not need to be disconnected, the sustainable water supply is ensured in the process of cleaning the impurities, and the practicability is strong.)

1. The utility model provides a take self-cleaning filtering capability's water supply system which characterized in that: the waste collection device comprises a cleaning cylinder (1) and a waste collection cylinder (3), wherein the waste collection cylinder (3) is communicated and arranged at the bottom end of the cleaning cylinder (1), a transmission rod (2) vertically penetrates through the interior of the cleaning cylinder (1), a water supply pipeline (5) is transversely arranged on one side of the outer top of the cleaning cylinder (1), a water diversion pipeline (4) is communicated between the water supply pipeline (5) and the cleaning cylinder (1), a driving rod (6) is arranged in the water supply pipeline (5), an auxiliary cylinder (7) is detachably arranged at the bottom end of the waste collection cylinder (3), and a water outlet pipe (8) is communicated on one side, away from the water diversion pipeline (4), of the cleaning cylinder (1);

clean section of thick bamboo (1) inside coaxial being provided with cylindric filter mantle (101), transfer line (2) stretch into one end is provided with clean blade (201) that vertical spiral extends in clean section of thick bamboo (1), filter mantle (101) with clean blade (201) outside is all densely covered has the filtration pore of permeating water, just clean blade (201) outside with filter mantle (101) inner wall parallel and level, transfer line (2) top is provided with drive gear (202), actuating lever (6) stretch into water supply pipe (5) one end is provided with multiunit drive blade (601), just actuating lever (6) other end is provided with the meshing drive gear (602) of drive gear (202).

2. The water supply system with a self-cleaning filtering function as claimed in claim 1, wherein: the water conduit (4) comprises a tail pipe (401) which is transversely communicated with the cleaning cylinder (1), a vertical pipe (402) is vertically arranged at one end, away from the cleaning cylinder (1), of the tail pipe (401), an elbow pipe (403) is communicated between the vertical pipe (402) and the tail pipe (401), and the top end of the vertical pipe (402) is communicated with the water supply pipeline (5).

3. The water supply system with a self-cleaning filtering function as claimed in claim 2, wherein: a liquid inlet hole (101 a) is transversely formed in one side, close to the tail pipe (401), of the filter cover (101), the diameter of the liquid inlet hole (101 a) is equal to the inner diameter of the tail pipe (401), and an accommodating barrel (501) for accommodating a plurality of groups of driving blades (601) is arranged in the middle of the water supply pipeline (5).

4. A water supply system with a self-cleaning filtering function as claimed in claim 3, wherein: the water supply pipeline (5) is close to drive gear (602) one end is provided with end cover (502), actuating lever (6) transversely run through end cover (502), just actuating lever (6) with end cover (502) pass through sealed bearing normal running fit.

5. The water supply system with a self-cleaning filtering function as claimed in claim 1, wherein: the top side opening of the waste collecting cylinder (3) is flush with the bottom side of the cleaning blade (201), a funnel part (301) with the bottom end gradually reduced is arranged at the bottom side opening of the waste collecting cylinder (3), an annular straight cylinder part (302) is vertically arranged at the bottom end of the funnel part (301), a bearing plate (303) is transversely fixed on the inner side of the straight cylinder part (302), and the longitudinal width of the bearing plate (303) is smaller than the inner diameter of the straight cylinder part (302).

6. The water supply system with a self-cleaning filtering function according to claim 5, wherein: the middle part of the bearing plate (303) is vertically penetrated with a support rod (304), the support rod (304) is in clearance fit with the bearing plate (303), the top end of the support rod (304) is fixed with a movable plug (305), and the bottom side of the movable plug (305) is of an arc surface structure which can be attached to the inner wall of the funnel part (301).

7. The water supply system with a self-cleaning filtering function according to claim 6, wherein: the movable plug (305) is made of rubber, the top side of the movable plug (305) is of an arc-shaped hemispherical structure, a stop block (307) is arranged at the bottom end of the support rod (304), and a spring (306) is sleeved on the outer side of the support rod (304) between the stop block (307) and the bearing plate (303).

8. The water supply system with a self-cleaning filtering function according to claim 7, wherein: the auxiliary cylinder (7) is of a hollow cylinder structure with an open top, the open top end of the auxiliary cylinder (7) is sleeved outside the straight cylinder part (302), the auxiliary cylinder (7) is in threaded fit with the straight cylinder part (302), and the bottom side of the stop block (307) is abutted against the inner bottom of the auxiliary cylinder (7).

9. The water supply system with a self-cleaning filtering function according to claim 8, wherein: the inside bilateral symmetry of supplementary section of thick bamboo (7) is provided with two sets of rotating turret (701), rotating turret (701) are the U-shaped structure of opening down, and this rotating turret (701) top outside normal running fit has support arm (702), support arm (702) outside one end is provided with semicircle annular scraper blade (704), support arm (702) are kept away from scraper blade (704) one side is provided with waist type hole (702 a) along its length direction, the vertical U-shaped synchronizing bar (703) that has the opening up that runs through in supplementary section of thick bamboo (7) bottom, and this synchronizing bar (703) top both ends all are provided with and run through rectangle sliding frame (703 a) of waist type hole (702 a), this sliding frame (703 a) with waist type hole (702 a) clearance fit.

Technical Field

The invention relates to the field of water supply equipment, in particular to a water supply system with a self-cleaning filtering function.

Background

We often see the incrustation scale in the running water in life, after water supply pipeline used for a long time, because the flow of water in the pipeline, the iron pipeline can arouse oxidation reaction and rust, get into the deposit or the deposit of pipeline in pipeline installation and maintenance process in the pipeline to lead to the clean effect variation of pipeline, the incrustation scale deposit not only makes the heat conductivity variation of domestic water heater, boiler and other equipment, extravagant energy (electricity or natural gas), cause economic burden for the user, can influence even that the user is healthy, there is great harm.

The applicant finds that at least the following technical problems exist in the prior art: the water supply system used at present only sets up filtering and cleaning equipment in a water works, and a large amount of impurities are increased or gathered along with time in a pipeline for conveying tap water, so that the water cleaning effect of an end user is difficult to ensure, and the practicability is poor.

Disclosure of Invention

The invention aims to solve the problems and provide a water supply system with a self-cleaning filtering function, wherein a filtering and cleaning device using water flow as power is arranged in a water supply pipeline, impurities in water in the water supply pipeline are filtered out in time, the filtered impurities can be gathered in a waste collecting cylinder, and an opening at the top end of the waste collecting cylinder can be automatically closed in the process of opening an opening at the bottom of the waste collecting cylinder to discharge the impurities, so that the water supply system does not need to be disconnected, the water can be continuously supplied in the process of cleaning the impurities, and the water supply system is high in practicability and is elaborated in details in the following description.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a water supply system with a self-cleaning filtering function, which comprises a cleaning cylinder and a waste collecting cylinder, wherein the waste collecting cylinder is communicated and arranged at the bottom end of the cleaning cylinder, a transmission rod vertically penetrates through the interior of the cleaning cylinder, one side of the top of the exterior of the cleaning cylinder is transversely provided with a water supply pipeline, a water diversion pipeline is communicated between the water supply pipeline and the cleaning cylinder, a driving rod is arranged in the water supply pipeline, the bottom end of the waste collecting cylinder is detachably provided with an auxiliary cylinder, and one side of the cleaning cylinder, which is far away from the water diversion pipeline, is communicated with a water outlet pipe;

the inside coaxial cylindric filter mantle that is provided with of clean section of thick bamboo, the transfer line stretches into one end is provided with the clean blade that vertical spiral extends in the clean section of thick bamboo, the filter mantle with clean blade outside is all densely covered has the filtration pore of permeating water, just the clean blade outside with filter mantle inner wall parallel and level, the transfer line top is provided with drive gear, the actuating lever stretches into water supply pipe one end is provided with multiunit drive blade, just the actuating lever other end is provided with the meshing drive gear's drive gear.

When the water supply system with the self-cleaning filtering function is used, tap water in a water supply pipeline flows into the water diversion channel, water flow pushes the driving blade to rotate, the driving blade extending into the accommodating barrel from the end part of the driving rod drives the driving rod and the driving gear to rotate, the driving gear drives the transmission gear to support the transmission rod to rotate, the transmission rod supports the cleaning blade to convey impurities which are input into the filter cover and filtered by the filter cover downwards, the impurities which are filtered and accumulated on the inner side of the filter cover are input into the waste collecting barrel through the cleaning blade, the impurities which enter the waste collecting barrel fall into the inner side of the straight barrel part downwards along a gap between the movable plug and the funnel part, when a user needs to clear the impurities in the barrel part, the user pushes the synchronizing rod upwards, the sliding frame is driven by the synchronizing rod to push the support arm upwards, so that the rotating frame support arm and the scraper plate rotate to a horizontal state, the outer side of the scraper is tightly propped against the inner wall of the straight cylinder part at the moment, then the auxiliary cylinder is rotated to make the auxiliary cylinder rotate and move downwards from the outer side of the straight cylinder part, the spring pushes the stop block to drive the stay bar to move downwards in the downwards moving process of the auxiliary cylinder so as to drive the movable plug to move downwards to be tightly propped against the inner side of the funnel part by utilizing the stay bar, so that the movable plug moves downwards in the process of removing the auxiliary cylinder so as to automatically seal the waste collecting cylinder and ensure that the waste collecting cylinder is in a sealed state after the auxiliary cylinder is removed, in the downwards moving process of the auxiliary cylinder, impurities adhered and collected on the inner wall of the straight cylinder part are synchronously scraped by utilizing the two groups of scrapers which rotate to be in a horizontal state so as to ensure that the inner side of the straight cylinder part after the auxiliary cylinder is removed is in a clean state, the impurities contained in the auxiliary cylinder are manually cleaned, then the auxiliary cylinder is rotationally fixed to the outer side of the straight cylinder part again, and the stop block is pushed upwards again so as to separate the sealing plug from the funnel part by utilizing the auxiliary cylinder, thereby the waste collecting cylinder is communicated up and down again.

Preferably, the water conduit comprises a tail pipe which is transversely communicated with the cleaning cylinder, a vertical pipe is vertically arranged at one end, away from the cleaning cylinder, of the tail pipe, an elbow pipe is communicated between the vertical pipe and the tail pipe, and the top end of the vertical pipe is communicated with the water supply pipeline.

Preferably, a liquid inlet hole is transversely formed in one side, close to the tail pipe, of the filter cover in a penetrating mode, the diameter of the liquid inlet hole is equal to the inner diameter of the tail pipe, and a containing cylinder containing a plurality of groups of driving blades is arranged in the middle of the water supply pipeline.

Preferably, one end of the water supply pipeline, which is close to the driving gear, is provided with a sealing end cover, the driving rod transversely penetrates through the sealing end cover, and the driving rod is in running fit with the sealing end cover through a sealing bearing.

Preferably, the top opening of the waste collecting cylinder is flush with the bottom of the cleaning blade, a funnel part with a gradually reduced bottom end is arranged at the bottom opening of the waste collecting cylinder, an annular straight cylinder part is vertically arranged at the bottom end of the funnel part, a bearing plate is transversely fixed on the inner side of the straight cylinder part, and the longitudinal width of the bearing plate is smaller than the inner diameter of the straight cylinder part.

Preferably, a support rod vertically penetrates through the middle of the bearing plate and is in clearance fit with the bearing plate, a movable plug is fixed at the top end of the support rod, and the bottom side of the movable plug is of an arc surface structure capable of being attached to the inner wall of the funnel part.

Preferably, the movable plug is made of rubber, the top side of the movable plug is of an arc hemispherical structure, the bottom end of the support rod is provided with a stop block, and a spring is sleeved on the outer side of the support rod between the stop block and the bearing plate.

Preferably, the auxiliary cylinder is a hollow cylinder structure with an open top, the open top of the auxiliary cylinder is sleeved outside the straight cylinder part, the auxiliary cylinder is in threaded fit with the straight cylinder part, and the bottom side of the stop block abuts against the bottom in the auxiliary cylinder.

Preferably, two groups of rotating frames are symmetrically arranged on two sides of the interior of the auxiliary cylinder, each rotating frame is of a U-shaped structure with a downward opening, a support arm is rotatably matched on the outer side of the top of each rotating frame in a rotating mode, a semicircular scraper is arranged at one end of the outer side of each support arm, a waist-shaped hole is formed in one side of each scraper along the length direction of each scraper, a U-shaped synchronizing rod with an upward opening vertically penetrates through the bottom of the auxiliary cylinder, rectangular sliding frames penetrating through the waist-shaped holes are arranged at two ends of the top of each synchronizing rod, and the sliding frames are in clearance fit with the waist-shaped holes.

Has the advantages that: according to the invention, the filtering and cleaning device which utilizes water flow as power is arranged in the water supply pipeline, so that impurities in water in the water supply pipeline are filtered out in time, the filtered impurities can be gathered in the waste collecting cylinder, and the opening at the top end of the waste collecting cylinder can be automatically closed in the process of opening the opening at the bottom of the waste collecting cylinder to discharge the impurities, so that a water supply system does not need to be disconnected, the sustainable water supply is ensured in the process of cleaning the impurities, and the practicability is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view structural diagram of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic perspective view of a filter housing according to the present invention;

FIG. 5 is a schematic perspective view of the waste collecting barrel of the present invention;

FIG. 6 is a schematic perspective view of the penstock of the present invention;

FIG. 7 is a schematic perspective view of the transfer bar of the present invention;

FIG. 8 is an internal structural view of the waste collection container of the present invention;

FIG. 9 is a schematic view showing the internal structure of the auxiliary cartridge of the present invention;

fig. 10 is an internal structural view of the present invention.

The reference numerals are explained below:

1. a cleaning cartridge; 101. a filter housing; 101a, a liquid inlet hole; 2. a transmission rod; 201. cleaning the blades; 202. a transmission gear; 3. a waste collecting cylinder; 301. a funnel part; 302. a straight tube portion; 303. a support plate; 304. a stay bar; 305. a movable plug; 306. a spring; 307. a stopper; 4. a water conduit; 401. a tail pipe; 402. a vertical tube; 403. bending the pipe; 5. a water supply pipeline; 501. an accommodating cylinder; 502. sealing the end cap; 6. a drive rod; 601. a driving blade; 602. a drive gear; 7. an auxiliary cylinder; 701. a rotating frame; 702. a support arm; 702a, kidney-shaped holes; 703. a synchronization lever; 703a, a sliding frame; 704. a squeegee; 8. and (5) discharging a water pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Referring to fig. 1-10, the invention provides a water supply system with a self-cleaning filtering function, which comprises a cleaning cylinder 1 and a waste collecting cylinder 3, wherein the waste collecting cylinder 3 is communicated with the bottom end of the cleaning cylinder 1, a transmission rod 2 vertically penetrates through the interior of the cleaning cylinder 1, a water supply pipeline 5 is transversely arranged on one side of the outer top of the cleaning cylinder 1, a water diversion pipeline 4 is communicated between the water supply pipeline 5 and the cleaning cylinder 1, a driving rod 6 is arranged in the water supply pipeline 5, an auxiliary cylinder 7 is detachably arranged at the bottom end of the waste collecting cylinder 3, and a water outlet pipe 8 is communicated with one side of the cleaning cylinder 1, which is far away from the water diversion pipeline 4;

the inside coaxial cylindric filter mantle 101 that is provided with of cleaning section of thick bamboo 1, the one end is provided with vertical spiral extension's cleaning blade 201 in the drive link 2 stretched into cleaning section of thick bamboo 1, filter mantle 101 and cleaning blade 201 outside all gather and have the filtration hole that permeates water, and the cleaning blade 201 outside is parallel and level with filter mantle 101 inner wall, the drive link 2 top is provided with drive gear 202, drive lever 6 stretches into water supply pipe 5 one end and is provided with multiunit drive blade 601, and the drive lever 6 other end is provided with the drive gear 602 that meshes drive gear 202.

As an optional embodiment, the water conduit 4 includes a tail pipe 401 transversely communicated with the cleaning cylinder 1, one end of the tail pipe 401 far away from the cleaning cylinder 1 is vertically provided with a vertical pipe 402, an elbow pipe 403 is communicated between the vertical pipe 402 and the tail pipe 401, the top end of the vertical pipe 402 is communicated with a water supply pipeline 5, one side of the filter cover 101 near the tail pipe 401 is transversely provided with a liquid inlet hole 101a, the diameter of the liquid inlet hole 101a is equal to the inner diameter of the tail pipe 401, the middle part of the water supply pipeline 5 is provided with an accommodating cylinder 501 for accommodating a plurality of groups of driving blades 601, one end of the water supply pipeline 5 near the driving gear 602 is provided with a sealing end cover 502, the driving rod 6 transversely penetrates through the sealing end cover 502, and the driving rod 6 is rotatably matched with the sealing end cover 502 through a sealing bearing;

an opening at the top side of the waste collecting barrel 3 is flush with the bottom side of the cleaning blade 201, a funnel part 301 with a gradually reduced bottom end is arranged at the opening at the bottom side of the waste collecting barrel 3, an annular straight barrel part 302 is vertically arranged at the bottom end of the funnel part 301, a bearing plate 303 is transversely fixed at the inner side of the straight barrel part 302, the longitudinal width of the bearing plate 303 is smaller than the inner diameter of the straight barrel part 302, a support rod 304 vertically penetrates through the middle part of the bearing plate 303, the support rod 304 is in clearance fit with the bearing plate 303, a movable plug 305 is fixed at the top end of the support rod 304, and the bottom side of the movable plug 305 is of an arc surface structure which can be attached to the inner wall of the funnel part 301; the movable plug 305 is made of rubber, the top side of the movable plug 305 is of an arc hemispherical structure, the bottom end of the support rod 304 is provided with a stop block 307, and the outer side of the support rod 304 between the stop block 307 and the bearing plate 303 is sleeved with a spring 306; the auxiliary cylinder 7 is a hollow cylinder structure with an open top, the open top end of the auxiliary cylinder 7 is sleeved outside the straight cylinder part 302, the auxiliary cylinder 7 is in threaded fit with the straight cylinder part 302, and the bottom side of the stop block 307 is tightly propped against the inner bottom of the auxiliary cylinder 7; two groups of rotating frames 701 are symmetrically arranged on two sides of the interior of the auxiliary cylinder 7, each rotating frame 701 is of a U-shaped structure with a downward opening, a support arm 702 is rotatably matched on the outer side of the top of each rotating frame 701, a semicircular annular scraper 704 is arranged at one end of the outer side of each support arm 702, a kidney-shaped hole 702a is formed in one side, away from the scraper 704, of each support arm 702 along the length direction of the corresponding support arm, a U-shaped synchronizing rod 703 with an upward opening vertically penetrates through the bottom of the auxiliary cylinder 7, rectangular sliding frames 703a penetrating through the kidney-shaped holes 702a are arranged at two ends of the top of each synchronizing rod 703, and the sliding frames 703a are in clearance fit with the kidney-shaped holes 702 a.

By adopting the structure, in the using process, tap water in the water supply pipeline 5 flows into the water diversion channel, water flow pushes the driving blade 601 to rotate, the driving blade 601 extending into the accommodating cylinder 501 from the end part of the driving rod 6 drives the driving rod 6 and the driving gear 602 to rotate, the driving gear 602 drives the transmission gear 202 to support the transmission rod 2 to rotate, the transmission rod 2 supports the cleaning blade 201 to convey impurities which are input into the filter cover 101 and filtered by the filter cover 101 downwards, so that the impurities which are filtered and collected from the inner side of the filter cover 101 are input into the waste collecting cylinder 3 through the cleaning blade 201, the impurities which enter the waste collecting cylinder 3 fall into the inner side of the straight cylinder part 302 along the gap between the movable plug 305 and the funnel part 301, when a user needs to clear the impurities in the straight cylinder part, the user pushes the synchronous rod 703 upwards, the sliding frame 703a drives the sliding frame 703a to push the supporting arm 702 upwards through the synchronous rod 703, so that the rotating frame 701 supports the supporting arm 702 and the scraper 704 to rotate to the horizontal state, at this time, the outer side of the scraping plate 704 is tightly pressed against the inner wall of the straight cylinder part 302, then the auxiliary cylinder 7 is rotated to make it rotate and move downwards from the outer side of the straight cylinder part 302, the spring 306 pushes the stop block 307 to drive the stay bar 304 to move downwards in the downward moving process of the auxiliary cylinder 7, so as to drive the movable plug 305 to move downwards to be tightly pressed against the inner side of the funnel part 301, so that the movable plug 305 moves downwards to automatically close the waste collecting cylinder 3 in the process of removing the auxiliary cylinder 7, so as to ensure that the waste collecting cylinder 3 is in a closed state after the auxiliary cylinder 7 is removed, in the downward moving process of the auxiliary cylinder 7, the impurities adhered and collected on the inner wall of the straight cylinder part 302 are synchronously scraped by the two groups of scraping plates 704 which rotate to the horizontal state, so as to ensure the clean state of the inner side of the straight cylinder part 302 after the auxiliary cylinder 7 is removed, the impurities contained in the auxiliary cylinder 7 are manually cleaned, then the auxiliary cylinder 7 is rotationally fixed to the outer side of the straight cylinder part 302 again, and the sealing plug 307 is pushed upwards again by the auxiliary cylinder 7 to separate the funnel part 301, so as to lead the waste collecting cylinder 3 to be communicated up and down again;

through utilizing rivers to filter cleaning device as power in the inside setting of water supply pipe 5, in time filter out the impurity of the inside aquatic of water supply pipe 5, can gather the useless section of thick bamboo 3 of collection to the impurity that filters out simultaneously, can close the useless section of thick bamboo 3 top openings of collection automatically with the discharge impurity in-process opening the useless section of thick bamboo 3 bottoms of collection to need not to break off water supply system, ensure at the sustainable water supply of clearance impurity in-process, the practicality is strong.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.