阅读说明：本技术 一种煤灰处理用水洗装置 (Coal ash handles and uses washing device ) 是由 杨学伟 于 2021-08-13 设计创作，主要内容包括：本发明提供一种煤灰处理用水洗装置,涉及煤灰水洗传送带技术领域,本发明包括传送带和调节装置,所述传送带的表面固装有多个支撑架,所述支撑架的表面设有三个喷枪,且三个喷枪均匀分布在支撑架表面,所述支撑架和喷枪的表面设有调节装置,所述调节装置包括两个支撑块,两个所述支撑块的底端和支撑架上表面固装,所述喷枪的表面设有阻挡装置,所述阻挡装置包括两个凸块,两个所述凸块的侧壁和喷枪表面固装,且两个凸块以喷枪的中心点对称分布,所述凸块的外表面滑动连接有滑块。本发明,解决了传统喷枪在使用时通过螺丝固定,在长时间使用时会生锈导致喷枪拆卸繁琐的问题。(The invention provides a coal ash treatment water washing device, which relates to the technical field of coal ash water washing conveyor belts and comprises a conveyor belt and an adjusting device, wherein a plurality of support frames are fixedly arranged on the surface of the conveyor belt, three spray guns are arranged on the surface of each support frame and are uniformly distributed on the surface of each support frame, the adjusting devices are arranged on the surfaces of the support frames and the spray guns, each adjusting device comprises two support blocks, the bottom ends of the two support blocks and the upper surface of each support frame are fixedly arranged, a blocking device is arranged on the surface of each spray gun and comprises two convex blocks, the side walls of the two convex blocks and the surfaces of the spray guns are fixedly arranged, the two convex blocks are symmetrically distributed by the central points of the spray guns, and the outer surfaces of the convex blocks are connected with sliding blocks in a sliding manner. The spray gun solves the problem that the traditional spray gun is fixed by screws when in use and rusts to cause complex disassembly of the spray gun when in long-term use.)

1. A coal ash handles and uses washing device which characterized in that: the conveying belt comprises a conveying belt (1) and an adjusting device (3), a plurality of supporting frames (2) are fixedly arranged on the surface of the conveying belt (1), three spray guns (4) are arranged on the surface of each supporting frame (2), the three spray guns (4) are uniformly distributed on the surface of each supporting frame (2), the adjusting devices (3) are arranged on the surfaces of the supporting frames (2) and the spray guns (4), each adjusting device (3) comprises two supporting blocks (301), the bottom ends of the two supporting blocks (301) and the upper surface of the corresponding supporting frame (2) are fixedly arranged, one ends, close to each other, of the two supporting blocks (301) are provided with rotating blocks (302), a circular ring (303) is fixedly arranged on the side wall of each rotating block (302), the inner wall of the circular ring (303) is connected with the outer surface of each spray gun (4) in a sliding mode, and two retaining columns (304) are fixedly arranged on the surface of each spray gun (4).

2. The coal ash treatment water washing device according to claim 1, characterized in that: a cylinder (305) is fixedly arranged on the surface of the circular ring (303) close to the stop column (304), a clamping block (306) is rotatably connected to the outer surface of the cylinder (305), and the surface of the clamping block (306) is movably connected with the surface of the stop column (304).

3. The coal ash treatment water washing device according to claim 2, characterized in that: the rotating shafts are fixedly arranged at the ends, close to each other, of the two supporting blocks (301), the rotating blocks (302) are rotatably connected with the supporting blocks (301) through the rotating shafts, circular holes are formed in the surfaces of the circular rings (303), and the spray guns (4) are slidably connected with the circular rings (303) through the circular holes.

4. The coal ash treatment water washing device according to claim 3, characterized in that: the surface of the rotating block (302) is fixedly provided with a plurality of clamping blocks (307), the side wall of the supporting block (301) is provided with an inserting block (308), and the outer surface of the inserting block (308) is in sliding connection with the inner wall of the clamping block (307).

5. The coal ash treatment water washing device according to claim 4, characterized in that: the supporting shoe (301) lateral wall is equipped with cavity piece (309) near the position of inserted block (308) admittedly, the surface of cavity piece (309) has seted up the slide opening, and the inner wall of slide opening and the outer surface sliding connection of inserted block (308).

6. The coal ash treatment water washing device according to claim 5, characterized in that: and a connecting block (310) is fixedly arranged at one end of the inserting block (308) far away from the clamping block (307), and the connecting block (310) and the inserting block (308) form a T-shaped structure.

7. The coal ash treatment water washing device according to claim 6, characterized in that: the spring type connecting block is characterized in that rectangular blocks (311) are fixedly mounted on two sides of each rectangular block (311), the rectangular blocks (311) and the connecting blocks (310) are on the same horizontal line, and springs (312) are fixedly mounted at the ends, close to each other, of the two rectangular blocks (311) and the connecting blocks (310).

8. The coal ash treatment water washing device according to claim 7, characterized in that: the surface of the spray gun (4) is provided with a blocking device (5), the blocking device (5) comprises two convex blocks (51), the side walls of the two convex blocks (51) and the surface of the spray gun (4) are fixedly installed, the two convex blocks (51) are symmetrically distributed with the center point of the spray gun (4), the outer surface of each convex block (51) is connected with a sliding block (52) in a sliding mode, a stop block (53) is fixedly installed at one end, close to each other, of each sliding block (52), and a round cap (54) is fixedly installed at one end, close to the spray gun (4), of each stop block (53).

9. The coal ash treatment water washing device according to claim 8, characterized in that: the surface of the sliding block (52) is provided with a rectangular groove, the sliding block (52) is in sliding connection with the convex block (51) by means of the rectangular groove, one end, far away from the spray gun (4), of the convex block (51) is fixedly provided with a limiting block (55), and the side wall of the limiting block (55) is in sliding connection with the side wall of the sliding block (52).

10. The coal ash treatment water washing device according to claim 9, characterized in that: the side wall of the sliding block (52) is fixedly provided with a resisting block (56), the side wall of the resisting block (56) is rotatably connected with a threaded rod (57), the outer surface of the threaded rod (57) is in threaded connection with the inner wall of the limiting block (55), and one end, far away from the resisting block (56), of the threaded rod (57) is fixedly provided with a knob (58).

Technical Field

The invention relates to the technical field of coal ash water washing conveyor belts, in particular to a coal ash treatment water washing device.

Background

Conveyor belts are generally classified according to the presence or absence of traction elements: the conveyor belt equipment that has the pulling member and the conveyor belt equipment that does not have the pulling member, the conveyor belt equipment that has the pulling member is various, mainly has: belt conveyors, plate conveyors, trolley conveyors, escalators, moving walkways, scraper conveyors, buried scraper conveyors, bucket elevators, overhead conveyors, and the like.

The kind of conveyer belt has a lot, and the conveyer belt also can use in many fields, for example in the coal mine factory, will use the conveyer belt when needs transport coal ash, also can wash coal ash when transmitting, will use the spray gun when wasing, but traditional spray gun passes through the screw fixation when using, can rust when using for a long time and lead to the spray gun to dismantle loaded down with trivial details problem, to sum up the problem develops a conveyer belt that has convenient dismantlement function fixed action and seems to be especially important.

Disclosure of Invention

The invention aims to solve the problem that in the prior art, a traditional spray gun is fixed by screws when in use, rust is generated when the spray gun is used for a long time, and the spray gun is troublesome to disassemble, and provides a coal ash treatment water washing device.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a coal ash handles and uses washing unit, includes conveyer belt and adjusting device, a plurality of support frames are equipped with admittedly on the surface of conveyer belt, the surface of support frame is equipped with three spray gun, and three spray gun evenly distributed is on the support frame surface, the surface of support frame and spray gun is equipped with adjusting device, adjusting device includes two supporting shoes, two the bottom and the support frame upper surface of supporting shoe are adorned admittedly, two the one end that the supporting shoe is close to each other is equipped with the turning block, the lateral wall of turning block is adorned admittedly and is equipped with the ring, the inner wall of ring and the surface sliding connection of spray gun, the surface of spray gun is adorned admittedly and is equipped with two bumping posts, ring and bumping post have played the effect of restriction spray gun position.

The surface of the circular ring is fixedly provided with a cylinder at a position close to the stop post, the outer surface of the cylinder is rotatably connected with a clamping block, the surface of the clamping block is movably connected with the surface of the stop post, and the clamping block plays a role in limiting the position of the stop post.

And a rotating shaft is fixedly arranged at one end of each of the two supporting blocks, which is close to each other, the rotating blocks are rotatably connected with the supporting blocks by virtue of the rotating shaft, circular holes are formed in the surface of the circular ring, and the spray gun is slidably connected with the circular ring by virtue of the circular holes.

The surface of the rotating block is fixedly provided with a plurality of clamping blocks, the side wall of the supporting block is provided with an inserting block, the outer surface of the inserting block is connected with the inner wall of the clamping block in a sliding manner, and the inserting block and the clamping block play a role in limiting the position of the rotating block.

The supporting shoe lateral wall is close to the position of inserted block and is equipped with the cavity piece admittedly, the slide opening has been seted up on the surface of cavity piece, the inner wall and the inserted block surface sliding connection of slide opening, the cavity piece has played the effect of supporting the inserted block.

And a connecting block is fixedly arranged at one end of the inserting block far away from the clamping block, and the connecting block and the inserting block form a T-shaped structure.

The two sides of the rectangular block are fixedly provided with the rectangular block, the rectangular block and the connecting block are on the same horizontal line, one end, close to each other, of the two rectangular blocks and the connecting block is fixedly provided with the spring, and the spring plays a role in driving the connecting block to slide.

The surface of the spray gun is provided with a blocking device, the blocking device comprises two convex blocks, the side walls of the two convex blocks and the surface of the spray gun are fixedly installed, the two convex blocks are symmetrically distributed with the central point of the spray gun, the outer surfaces of the convex blocks are connected with sliding blocks in a sliding mode, one ends, close to each other, of the two sliding blocks are fixedly provided with check blocks, one ends, close to the spray gun, of the check blocks are fixedly provided with round caps, and the round caps play a role in scattering water flow.

The surface of the sliding block is provided with a rectangular groove, the sliding block is in sliding connection with the rectangular groove and a convex block, one end, far away from the spray gun, of the convex block is fixedly provided with a limiting block, the side wall of the limiting block is in sliding connection with the side wall of the sliding block, and the limiting block plays a role in limiting the sliding position of the sliding block.

The side wall of the sliding block is fixedly provided with a supporting block, the side wall of the supporting block is rotatably connected with a threaded rod, the outer surface of the threaded rod is in threaded connection with the inner wall of the limiting block, one end, far away from the supporting block, of the threaded rod is fixedly provided with a knob, and the threaded rod plays a role in enabling the supporting block and the sliding block to slide.

Compared with the prior art, the invention has the advantages and positive effects that,

1. in the invention, when a spray gun needs to be fixed, the spray gun is firstly aligned to a circular ring, the spray gun is pushed to slide into the inner wall of the circular ring after alignment, a retaining post is driven to slide when the spray gun slides, a clamping block is rotated to enable the clamping block to rotate on the surface of the circular ring after the retaining post slides to a proper position, then a connecting block is dragged to enable the connecting block to drive a spring to stretch, the spring is fixed on a rectangular block, the sliding of the connecting block also drives an inserting block to slide, the inserting block slides in a hollow block, after the inserting block slides to a proper position, the rotating block is rotated to enable the rotating block to drive the circular ring to rotate, the rotating block rotates on the surface of a rotating shaft between two supporting blocks, the circular ring drives the spray gun to rotate, the rotating block also drives a clamping block to rotate, after the clamping block rotates to a proper position, the spring of the connecting block is loosened to rebound, and the spring drives the connecting block to slide, the connecting block drives the inserted block and slides, the inserted block slides in the cavity piece is inside, the inserted block has still slided into the clamp splice inner wall, through setting up adjusting device, let the fixture block rotate and limit the spray gun position with bumping post laminating position through rotating the fixture block, traditional screw mounting means has been abandoned, not only accomplished spray gun rigidity, can also adjust the spray gun angle, traditional screw installation can appear rustting when using for a long time and lead to the spray gun to dismantle loaded down with trivial details condition, make the device have the practicality very much.

2. In the invention, when a spray gun is needed to be used, firstly, a knob is rotated to drive a threaded rod to rotate, the threaded rod rotates on the surface of a butting block, the threaded rod also rotates on the inner wall of a limiting block, the butting block can slide due to the characteristics of the threaded rod, the butting block drives a sliding block to slide, the sliding block slides on the surface of a convex block, the limiting block is fixed on the surface of the convex block, a stop block is driven to slide when the sliding block slides, the stop block drives a round cap to slide, and then the round cap slides to a proper position, the knob is stopped to rotate, when the position of the round cap is set, the spray gun can be started, water flow is sprayed from the spray gun to contact the round cap and is blocked by the round cap, the water flow can be scattered and opened, when the water flow scattering width needs to be changed, the distance of the round cap is moved by the rotation of the threaded rod, the water flow is scattered more the nearer the round cap, the smaller the farther the water flow is scattered, and by arranging a blocking device, reach round cap one end position through the rotation of threaded rod, not only can break up rivers, can also adjust rivers and scatter the width, avoided traditional breaker because the easy condition of blockking up of round hole undersize when using for the device has the practicality very much.

Drawings

FIG. 1 is a schematic perspective view of a coal ash treatment water washing apparatus according to the present invention;

FIG. 2 is a schematic structural view of FIG. 1 at A of a coal ash treatment scrubber according to the present invention;

FIG. 3 is an exploded view of an adjustment device in a coal ash treatment scrubber according to the present invention;

FIG. 4 is a schematic top view of a coal ash treatment water washing apparatus according to the present invention;

FIG. 5 is a schematic view of the structure at B of FIG. 4 in a coal ash treatment washing apparatus according to the present invention;

FIG. 6 is an exploded view of a blocking device in a soot treatment scrubber according to the present invention.

Illustration of the drawings: 1. a conveyor belt; 2. a support frame; 3. an adjustment device; 301. a support block; 302. rotating the block; 303. a circular ring; 304. a bumping post; 305. a cylinder; 306. a clamping block; 307. a clamping block; 308. inserting a block; 309. a hollow block; 310. connecting blocks; 311. a rectangular block; 312. a spring; 4. a spray gun; 5. a blocking device; 51. a bump; 52. a slider; 53. a stopper; 54. a round cap; 55. a limiting block; 56. a resisting block; 57. a threaded rod; 58. a knob.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

In the embodiment, as shown in fig. 1 to 6, a coal ash treatment water washing device comprises a conveyor belt 1 and an adjusting device 3, wherein a plurality of support frames 2 are fixedly arranged on the surface of the conveyor belt 1, three spray guns 4 are arranged on the surface of each support frame 2, the three spray guns 4 are uniformly distributed on the surface of each support frame 2, the adjusting devices 3 are arranged on the surfaces of the support frames 2 and the spray guns 4, and blocking devices 5 are arranged on the surfaces of the spray guns 4.

As shown in fig. 1 to 3, the adjusting device 3 includes two supporting blocks 301, bottom ends of the two supporting blocks 301 and an upper surface of the supporting frame 2 are fixedly mounted, one end of the two supporting blocks 301 close to each other is provided with a rotating block 302, a circular ring 303 is fixedly mounted on a side wall of the rotating block 302, an inner wall of the circular ring 303 is slidably connected with an outer surface of the spray gun 4, two retaining columns 304 are fixedly mounted on a surface of the spray gun 4, and the circular ring 303 and the retaining columns 304 play a role in limiting a position of the spray gun 4.

A cylinder 305 is fixedly arranged on the surface of the circular ring 303 close to the stop post 304, a clamping block 306 is rotatably connected to the outer surface of the cylinder 305, the surface of the clamping block 306 is movably connected with the surface of the stop post 304, and the clamping block 306 has the effect of limiting the position of the stop post 304.

The rotating shafts are fixedly arranged at the ends, close to each other, of the two supporting blocks 301, the rotating blocks 302 are rotatably connected with the supporting blocks 301 through the rotating shafts, circular holes are formed in the surfaces of the circular rings 303, and the spray guns 4 are slidably connected with the circular rings 303 through the circular holes.

The surface of the rotating block 302 is fixedly provided with a plurality of clamping blocks 307, the side wall of the supporting block 301 is provided with an inserting block 308, the outer surface of the inserting block 308 is in sliding connection with the inner wall of the clamping block 307, and the inserting block 308 and the clamping block 307 play a role in limiting the position of the rotating block 302.

The hollow block 309 is fixedly arranged on the side wall of the supporting block 301 close to the insertion block 308, a sliding hole is formed in the surface of the hollow block 309, the inner wall of the sliding hole is connected with the outer surface of the insertion block 308 in a sliding mode, and the hollow block 309 has the effect of supporting the insertion block 308.

The end of the insertion block 308 far away from the clamping block 307 is fixedly provided with a connecting block 310, and the connecting block 310 and the insertion block 308 form a T-shaped structure.

The rectangular blocks 311 are fixedly arranged on two sides of each rectangular block 311, the rectangular blocks 311 and the connecting blocks 310 are on the same horizontal line, the springs 312 are fixedly arranged at the ends, close to each other, of the two rectangular blocks 311 and the connecting blocks 310, and the springs 312 play a role in driving the connecting blocks 310 to slide.

The effect achieved by the mutual matching of the upper section components is that when the spray gun 4 needs to be fixed, the spray gun 4 is firstly aligned with the circular ring 303, the spray gun 4 is pushed to slide into the inner wall of the circular ring 303 after being aligned, the retaining column 304 is driven to slide when the spray gun 4 slides, after the retaining column 304 slides to a proper position, the fixture block 306 is rotated to enable the fixture block 306 to rotate on the surface of the cylinder 305, after the fixture block 306 rotates to a proper position, the connecting block 310 is pulled to enable the connecting block 310 to drive the spring 312 to stretch, the spring 312 is fixed on the rectangular block 311, the sliding of the connecting block 310 also drives the inserting block 308 to slide, the inserting block 308 slides inside the hollow block 309, after the inserting block 308 slides to a proper position, the rotating block 302 is rotated to enable the rotating block 302 to drive the circular ring 303 to rotate, the rotating block 302 rotates on the surface of the rotating shaft between the two supporting blocks 301, the circular ring 303 drives the spray gun 4 to rotate, and the rotating block 302 also drives the clamping block 307 to rotate, after clamp splice 307 rotates suitable position, loosen connecting block 310 spring 312 and can kick-back, spring 312 drives connecting block 310 and slide, connecting block 310 drives insert 308 and slides, insert 308 slides in cavity piece 309 is inside, insert 308 has still slided into clamp splice 307 inner wall, through setting up adjusting device 3, let fixture block 306 rotate to restrict spray gun 4 position with bumping post 304 laminating position through rotating fixture block 306, traditional screw mounting means has been abandoned, not only spray gun 4 rigidity has been accomplished, can also adjust spray gun 4 angle, traditional screw installation has been avoided can appear rustting when using for a long time and lead to spray gun 4 to dismantle loaded down with trivial details condition, make the device have the practicality very much.

As shown in fig. 4-6, the blocking device 5 includes two protrusions 51, the side walls of the two protrusions 51 are fixedly mounted on the surface of the spray gun 4, the two protrusions 51 are symmetrically distributed around the center point of the spray gun 4, the outer surface of the protrusions 51 is slidably connected with sliders 52, a block 53 is fixedly mounted on one end of each of the two sliders 52 close to each other, a circular cap 54 is fixedly mounted on one end of each of the block 53 close to the spray gun 4, and the circular cap 54 plays a role in scattering water flow.

The surface of the slide block 52 is provided with a rectangular groove, the slide block 52 is in sliding connection with the convex block 51 by means of the rectangular groove, one end of the convex block 51 far away from the spray gun 4 is fixedly provided with a limit block 55, the side wall of the limit block 55 is in sliding connection with the side wall of the slide block 52, and the limit block 55 plays a role in limiting the sliding position of the slide block 52.

The side wall of the sliding block 52 is fixedly provided with a resisting block 56, the side wall of the resisting block 56 is rotatably connected with a threaded rod 57, the outer surface of the threaded rod 57 is in threaded connection with the inner wall of the limiting block 55, one end of the threaded rod 57 far away from the resisting block 56 is fixedly provided with a knob 58, and the threaded rod 57 plays a role in enabling the resisting block 56 and the sliding block 52 to slide.

The effect achieved by the mutual matching of the upper-section components is that when the spray gun 4 needs to be used, the knob 58 is firstly rotated to enable the knob 58 to drive the threaded rod 57 to rotate, the threaded rod 57 rotates on the surface of the abutting block 56, the threaded rod 57 also rotates on the inner wall of the limiting block 55, the abutting block 56 can slide due to the characteristics of the threaded rod 57, the abutting block 56 drives the sliding block 52 to slide, the sliding block 52 slides on the surface of the convex block 51, the limiting block 55 is fixed on the surface of the convex block 51, the sliding block 52 drives the stop block 53 to slide, the stop block 53 drives the round cap 54 to slide, the round cap 54 stops rotating after sliding to a proper position, when the round cap 54 is arranged, the spray gun 4 can be opened, water flow is sprayed out from the spray gun 4 to contact with the round cap 54 and can be stopped by the round cap 54, the water flow can be scattered and opened, when the water flow scattering width needs to change, the distance of the round cap 54 needs to be moved through the rotation of the knob 57, the more the water flow that circle cap 54 is near scatters widely, and the more the water flow that circle cap 54 is far away scatters and opens the less, through setting up blocking device 5, reaches circle cap 54 one end position through the rotation of threaded rod 57, not only can break up rivers, can also adjust the rivers width of scattering, has avoided traditional breaker because the easy condition of blockking up of round hole undersize when using for the device has the practicality very much.

The overall working principle is as follows: firstly, aligning the spray gun 4 with the ring 303, pushing the spray gun 4 after alignment to enable the spray gun 4 to slide into the inner wall of the ring 303, driving the retaining post 304 to slide when the spray gun 4 slides, rotating the fixture block 306 to enable the fixture block 306 to rotate on the surface of the cylinder 305 after the retaining post 304 slides to a proper position, then dragging the connecting block 310 to enable the connecting block 310 to drive the spring 312 to stretch after the fixture block 306 rotates to a proper position, the spring 312 is fixed on the rectangular block 311, the sliding of the connecting block 310 also drives the inserting block 308 to slide, the inserting block 308 slides in the hollow block 309, after the inserting block 308 slides to a proper position, rotating the rotating block 302 again to enable the rotating block 302 to drive the ring 303 to rotate, the rotating block 302 rotates on the surface of the rotating shaft between the two supporting blocks 301, the ring 303 drives the spray gun 4 to rotate, the rotating of the rotating block 302 also drives the clamping block 307 to rotate, after the clamping block 307 rotates to a proper position, the spring 312 of the connecting block 310 can rebound, the spring 312 drives the connecting block 310 to slide, the connecting block 310 drives the inserting block 308 to slide, the inserting block 308 slides in the hollow block 309, the inserting block 308 also slides into the inner wall of the clamping block 307, the adjusting device 3 is arranged, the clamping block 306 is rotated to be attached to the blocking column 304 to limit the position of the spray gun 4, when water needs to be sprayed, the knob 58 is rotated to drive the threaded rod 57 to rotate by the knob 58, the threaded rod 57 rotates on the surface of the abutting block 56, the threaded rod 57 rotates on the inner wall of the limiting block 55, the abutting block 56 slides due to the characteristics of the threaded rod 57, the abutting block 56 drives the sliding block 52 to slide, the sliding block 52 slides on the surface of the convex block 51, the limiting block 55 is fixed on the surface of the convex block 51, the limiting block 53 is driven to slide by the sliding block 52, the round cap 54 is driven to slide, the round cap 54 slides to a proper position, the rotation of the knob 58 is stopped, and when the round cap 54 is arranged, the spray gun 4 can be turned on, the water flow sprayed out of the spray gun 4 and contacted with the round cap 54 can be blocked by the round cap 54, the water flow can be spread and spread, when the water flow spreading width needs to be changed, the distance of the round cap 54 needs to be moved through the rotation of the threaded rod 57, the closer the round cap 54 is, the wider the water flow spreading is, the farther the round cap 54 is, the smaller the water flow spreading is, and the water flow spreading range can be further controlled.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.