阅读说明：本技术 高空旋转降尘技术 (High-altitude rotary dust settling technology ) 是由 唐新湖 陈才 朱韶军 周华欣 上官洲境 徐于波 薛彪 刘旭 赵文俊 于 2021-09-23 设计创作，主要内容包括：本申请涉及一种高空旋转降尘技术,其包括若干高空降尘装置,若干高空降尘装置围绕施工区域均匀设置在围栏桩上,高空降尘装置包括立杆、转动座、喷淋组件、转动组件和送水组件；立杆竖直设置并可拆卸连接在围栏桩上,转动座转动连接在立杆顶端,且转动座的转动轴与立杆平行；喷淋组件包括水盘、雾化喷头和高压管,水盘轴向水平且空心设置,高压管水平设置,且一端设置在转动座上并与送水组件连通,另一端与水盘内腔连通,雾化喷头设置有若干,并沿周向分布在水盘上,并与水盘内腔连通；转动组件设置在立杆上,且能够使得转动座转动,送水组件能够向高压管内提供喷淋水。本申请具有提高降尘设备的适用性效果,同时能够提高降尘效果。(The application relates to a high-altitude rotary dust-settling technology, which comprises a plurality of high-altitude dust-settling devices, wherein the high-altitude dust-settling devices are uniformly arranged on fence piles around a construction area and comprise upright rods, rotating seats, spraying assemblies, rotating assemblies and water conveying assemblies; the upright stanchion is vertically arranged and detachably connected to the fence pile, the rotating seat is rotatably connected to the top end of the upright stanchion, and a rotating shaft of the rotating seat is parallel to the upright stanchion; the spraying assembly comprises a water tray, atomizing nozzles and high-pressure pipes, the water tray is axially horizontally and hollow, the high-pressure pipes are horizontally arranged, one end of each high-pressure pipe is arranged on the rotating seat and communicated with the water feeding assembly, the other end of each high-pressure pipe is communicated with the inner cavity of the water tray, and the plurality of atomizing nozzles are circumferentially distributed on the water tray and communicated with the inner cavity of the water tray; the rotating assembly is arranged on the vertical rod, the rotating seat can rotate, and the water supply assembly can supply spray water into the high-pressure pipe. This application has the suitability effect that improves dust fall equipment, can improve the dust fall effect simultaneously.)

1. The high-altitude rotation dust falling technology is characterized in that: the device comprises a plurality of high-altitude dust falling devices, wherein the high-altitude dust falling devices are uniformly arranged on a fence pile around a construction area and comprise upright rods (1), rotating seats (2), spraying assemblies (3), rotating assemblies (4) and water conveying assemblies (6); the upright stanchion (1) is vertically arranged and detachably connected to a fence pile, the rotating seat (2) is rotatably connected to the top end of the upright stanchion (1), and a rotating shaft of the rotating seat (2) is parallel to the upright stanchion (1); the spraying assembly (3) comprises a water disc (33), atomizing nozzles (34) and a high-pressure pipe (35), the water disc (33) is axially horizontally arranged and is hollow, the high-pressure pipe (35) is horizontally arranged, one end of the high-pressure pipe is arranged on the rotating seat (2) and communicated with the water feeding assembly (6), the other end of the high-pressure pipe is communicated with the inner cavity of the water disc (33), and the atomizing nozzles (34) are distributed on the water disc (33) along the circumferential direction and communicated with the inner cavity of the water disc (33); the rotating assembly (4) is arranged on the vertical rod (1) and can enable the rotating seat (2) to rotate, and the water delivery assembly (6) can provide spraying water into the high-pressure pipe (35).

2. The high-altitude rotation dust falling technology according to claim 1, characterized in that: pole setting (1) is including horizontal segment (11), vertical section (12) and telescopic cylinder (13), horizontal segment (11) one end articulates at vertical section (12) roof, the other end with rotate seat (2) and rotate the connection, telescopic cylinder (13) both ends articulate respectively on horizontal segment (11) and vertical section (12), just the articulated shaft of telescopic cylinder (13) and the articulated shaft parallel and the average level setting of horizontal section (11).

3. The high-altitude rotation dust settling technology of claim 2, characterized in that: the spraying assembly (3) further comprises a spraying frame (31) and a first motor (32), the high-pressure pipe (35) is rotatably connected with the water disc (33), the spraying frame (31) is arranged on one side, away from the transverse section (11), of the rotating seat (2), the first motor (32) is axially horizontal and arranged on the spraying frame (31), and an output shaft of the first motor (32) is coaxially connected with the water disc (33).

4. The high-altitude rotation dust settling technology of claim 2, characterized in that: the water feeding assembly (6) comprises a water feeding pipe (61) and a high-pressure pump (62), the water feeding pipe (61) sequentially extends into an inner cavity of the vertical section (12), an inner cavity of the horizontal section (11) and extends into the rotating seat (2) and the high-pressure pipe (35) in a communicated mode, and the high-pressure pump (62) is arranged on the water feeding pipe (61).

5. The high-altitude rotation dust falling technology according to claim 4, characterized in that: the inner diameter of one end, close to the rotating seat (2), of the high-pressure pipe (35) is larger than that of the other end of the high-pressure pipe.

6. The high-altitude rotation dust settling technology of claim 2, characterized in that: still including helping scattered subassembly (5), help scattered subassembly (5) including air-blower (51), air-blower (51) set up vertical section (12) and with vertical section (12) inner chamber intercommunication, just a plurality of air outlets have been seted up on vertical section (12) the week lateral wall that is close to the construction region.

7. The high-altitude rotation dust settling technology of claim 2, characterized in that: the vertical section (12) is provided with a plurality of belts (16) and at least two groups of hoops (15) along the vertical direction, and the two hoops (15) are respectively arranged close to the two ends of the vertical section (12) and are buckled on fence piles on the peripheral side of a construction area; the belt (16) is uniformly distributed between the two adjacent hoops (15) and is sleeved on the vertical section (12) and the fence pile.

8. The high-altitude rotation dust settling technology of claim 2, characterized in that: the rotating assembly (4) comprises a second motor (41) and a driving gear (42), the second motor (41) is axially and vertically arranged in the inner cavity of the transverse section (11), the driving gear (42) is coaxially arranged on an output shaft of the second motor (41), and rotating teeth (44) meshed with the driving gear (42) are formed in the peripheral side wall of the rotating seat (2).

Technical Field

The application relates to the field of constructional engineering dust fall equipment, in particular to a high-altitude rotation dust fall technology.

Background

With the continuous advance of urbanization, the construction site of the project is visible everywhere, and in the process of engineering construction, the construction ground is generally required to be firstly pushed and tamped, and the foundation construction is carried out, so that the foundation is the foundation of the engineering construction. The fence is generally arranged on the periphery of the construction area in an enclosing mode, so that non-working personnel are prevented from entering the fence, a large amount of dust and dust can be caused in the construction process of the construction engineering site, the dust and the dust are diffused into the air, the environment pollution is caused, too much personnel are sucked, and the health of people can be influenced.

Currently, there are three general ways of dust fall: (1) paving a green net on the building ground; (2) spraying and dedusting by using a sprinkler around a construction site; (3) the spraying equipment sprays at fixed points.

Aiming at the related technologies, the inventor thinks that under the conditions of large engineering construction area and wide region, a large amount of green nets are needed, the directions of atomizing nozzles of a sprinkler and other spraying equipment are fixed, only a part of regions can be sprayed at one time, and the defects of poor dust settling effect and poor applicability exist.

Disclosure of Invention

In order to improve dust fall equipment's suitability and dust fall effect, this application provides a rotatory dust fall technique in high altitude.

The application provides a rotatory dust fall technique in high altitude adopts following technical scheme:

a high-altitude rotary dust-settling technology comprises a plurality of high-altitude dust-settling devices, wherein the high-altitude dust-settling devices are uniformly arranged on a fence pile around a construction area and comprise vertical rods, rotating seats, spraying assemblies, rotating assemblies and water conveying assemblies; the upright stanchion is vertically arranged and detachably connected to the fence pile, the rotating seat is rotatably connected to the top end of the upright stanchion, and a rotating shaft of the rotating seat is parallel to the upright stanchion; the spraying assembly comprises a water disc, atomizing nozzles and a high-pressure pipe, the water disc is axially horizontally and hollow, the high-pressure pipe is horizontally arranged, one end of the high-pressure pipe is arranged on the rotating seat and communicated with the water feeding assembly, the other end of the high-pressure pipe is communicated with the inner cavity of the water disc, and the plurality of atomizing nozzles are circumferentially distributed on the water disc and communicated with the inner cavity of the water disc; the rotating assembly is arranged on the vertical rod and can enable the rotating seat to rotate, and the water supply assembly can provide spraying water into the high-pressure pipe.

Through adopting above-mentioned technical scheme, when carrying out the dust fall to the construction area, install the pole setting on construction area outlying rail stake in proper order, and make the water tray towards construction one side, the regulation send the water subassembly, make send the water that the water subassembly will spray to send into in the high-pressure tube, rivers in the high-pressure tube get into the water tray along the high-pressure tube, a plurality of atomizer blowout water smoke on the water tray follow afterwards, in the water smoke coverage, after high-speed flowing water smoke molecule and the collision of floating dust contact, the dirt grain is moistened, sink under the action of gravity. The fog body flowing fast sucks dust-containing air around the fog body into the fog body to be wetted and sunk; meanwhile, the rotating assembly is adjusted to enable the rotating seat to rotate around the vertical direction, so that the water disc is driven to move, the sprayed water mist is distributed along a fan shape, and the settled dust particles are wet and bonded, so that the dust particles are not easy to fly, and the dust removal effect is achieved; the arranged upright columns can be arranged according to the position and the size of a construction area, are distributed and installed around the construction area, are convenient to disassemble and can be repeatedly used, and the applicability of the dust settling equipment is improved; the water tray, the atomizing nozzles and the high-pressure pipe are arranged, spray water is provided through the water feeding assembly, the number of the atomizing nozzles is increased under the action of the water tray and the atomizing nozzles are far away from each other, so that atomized water which is just sprayed out is separated, and the atomized water is prevented from converging into water drops to fall to influence the atomizing effect; the rotating angle is controlled through the rotating assembly, accurate dust falling is carried out on a construction area in the fence, water flow splashing out of the construction area is reduced, water resources are saved, and the dust falling effect is further enhanced; compare in traditional dust fall mode, it is wider to cover, and it is higher to press down dirt efficiency, and the effect is better, does not additionally occupy the construction area.

Optionally, the pole setting includes horizontal segment, vertical section and telescopic cylinder, horizontal segment one end articulate at the vertical section roof, the other end with it rotates to rotate the seat and connects, telescopic cylinder both ends articulate respectively on horizontal segment and the vertical section, just telescopic cylinder's articulated shaft and the articulated shaft parallel of horizontal section and equal level setting.

Through adopting above-mentioned technical scheme, the orientation is sprayed through horizontal section identification of being convenient for to horizontal section, vertical section and telescopic cylinder that set up, and the quick installation of the vertical section of being convenient for can be spraying the in-process through telescopic cylinder for the horizontal section drives the water tray and rocks from top to bottom, can make the drop of water that sprays have certain initial velocity, and then increases the area that sprays, in order to be applicable to the great engineering of construction range, improves the dust fall effect.

Optionally, the spray assembly further comprises a spray frame and a first motor, the high-pressure pipe is rotatably connected with the water tray, the spray frame is arranged on one side, away from the transverse section, of the rotating seat, the first motor is axially horizontal and arranged on the spray frame, and an output shaft of the first motor is coaxially connected with the water tray.

Through adopting above-mentioned technical scheme, the frame and the first motor that spray that set up, the frame that sprays supports first motor for the output shaft of first motor drives the water tray and rotates, and initial velocity and centrifugal force when increase water smoke leaves the water tray, and then enlarge and spray the dust fall area, form the air current simultaneously, make spun water smoke form the heliciform blowout, increase the dwell time of water smoke in the air, be convenient for adsorb the dust, and then improve dust fall effect and dust fall efficiency.

Optionally, the water supply assembly comprises a water supply pipe and a high-pressure pump, the water supply pipe sequentially extends into the vertical section inner cavity and the horizontal section inner cavity and extends into the rotating seat to be communicated with the high-pressure pipe, and the high-pressure pump is arranged on the water supply pipe.

Through adopting above-mentioned technical scheme, the flow pipe and the high-pressure pump of setting provide high-pressure water flow for in the high-pressure pipe, and the flow pipe setting reduces the long-time exposure of pressure pipe and causes the flow pipe morals and manners in the pole setting, protects the flow pipe.

Optionally, the inner diameter of the high-pressure pipe close to one end of the rotating seat is larger than that of the other end of the rotating seat.

Through adopting above-mentioned technical scheme, the high-pressure pipe of setting makes the high-pressure pipe be close to the velocity of flow of water tray one end through the abrupt change of internal diameter and accelerates, is convenient for the rivers pressurization in the water tray with higher speed, improves the initial speed of atomizer spun rivers, and then is convenient for more effectually carry out the dust fall.

Optionally, the air-cooling device further comprises a dispersing-assisting assembly, wherein the dispersing-assisting assembly comprises an air blower, the air blower is arranged on the vertical section and communicated with the inner cavity of the vertical section, and a plurality of air outlets are formed in the peripheral side wall, close to the construction area, of the vertical section.

Through adopting above-mentioned technical scheme, the air-blower of setting can directly ventilate the vertical section to blow off the vertical section along the air outlet level, can drive spun water smoke and fly away towards farther place, and then increase the dust fall region, the suitability is higher, and the dust fall effect is better.

Optionally, the vertical section is provided with a plurality of belts and at least two groups of hoops along the vertical direction, and the two hoops are respectively arranged near two ends of the vertical section and fastened to fence piles on the periphery of the construction area; the belt evenly distributed is between two adjacent clamps to overlap simultaneously and establish on vertical section and rail stake.

Through adopting above-mentioned technical scheme, the clamp and the belt of setting can fix the vertical section in the stake of rail point department through the clamp, realize the fixed of vertical section, can consolidate the vertical section through the belt, reduce rocking and rotating of vertical section, improve the stability of vertical section, guarantee dust fall efficiency.

Optionally, the rotating assembly includes a second motor and a driving gear, the second motor is axially and vertically disposed in the inner cavity of the transverse section, the driving gear is coaxially disposed on an output shaft of the second motor, and a rotating tooth engaged with the driving gear is disposed on a circumferential side wall of the rotating base.

Through adopting above-mentioned technical scheme, the second motor and the driving gear of setting, the output shaft of second motor drive the driving gear and rotate, and then drive and rotate with driving gear meshed rotation seat to drive and rotate the seat and rotate along the axial is vertical rotates, is fan-shaped expansion reward punishment scope from the horizontal direction, and the coverage is wide, presses down dirt efficiently, effectual.

In summary, the present application includes at least one of the following beneficial technical effects:

the upright posts can be arranged according to the position and the size of a construction area, are distributed and installed around the construction area, are convenient to detach and can be recycled, and the applicability of the dust settling equipment is improved; the number of the atomizing nozzles is increased under the action of the water tray and the atomizing nozzles are distributed far away from each other, so that atomized water which is just sprayed out is separated, and the atomized water is prevented from converging into water drops to fall to influence the atomizing effect; the rotating angle is controlled through the rotating assembly, accurate dust falling is carried out on a construction area in the fence, water flow splashing out of the construction area is reduced, water resources are saved, and the dust falling effect is further enhanced; compare in traditional dust fall mode, it is wider to cover, and it is higher to press down dirt efficiency, and the effect is better, does not additionally occupy the construction area.

The horizontal section, the vertical section and the telescopic cylinder are arranged, the spraying direction can be conveniently recognized through the horizontal section, the vertical section can be conveniently and quickly installed, the horizontal section can drive the water tray to swing up and down in the spraying process through the telescopic cylinder, sprayed water drops can have certain initial speed, the spraying area is further increased, and the dust settling device is suitable for projects with a large construction range and improves the dust settling effect;

the air-blower that sets up can directly ventilate the vertical section to blow off the vertical section along the air outlet level, can drive spun water smoke and fly away towards farther place, and then increase the dust fall region, the suitability is higher, and the dust fall effect is better.

Drawings

Fig. 1 is an overall structure schematic diagram of the high-altitude rotation dust settling technology in the embodiment of the present application.

Figure 2 is a cross-sectional view of the pole of figure 1.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Description of reference numerals: 1. erecting a rod; 11. a transverse section; 12. a vertical section; 13. a telescopic cylinder; 14. an organ cover; 15. clamping a hoop; 16. a belt; 2. a rotating seat; 21. a straight section; 22. a circular arc section; 3. a spray assembly; 31. a spray rack; 32. a first motor; 33. a water pan; 34. an atomizing spray head; 35. a high pressure pipe; 4. a rotating assembly; 41. a second motor; 42. a driving gear; 43. connecting a lug plate; 44. rotating the teeth; 5. a dispersion aid assembly; 51. a blower; 52. a dust screen; 6. a water delivery assembly; 61. a water supply pipe; 62. a high pressure pump.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a high-altitude rotation dust falling technology. Referring to fig. 1, the high-altitude rotation dust falling technology comprises high-altitude dust falling devices, wherein the number of the high-altitude dust falling devices is selected according to the size of a construction area, and the high-altitude dust falling devices are uniformly arranged on a fence at the periphery of the construction area around the construction area.

Referring to fig. 1, the high-altitude dust falling device comprises a vertical rod 1, a rotating seat 2, a spraying assembly 3, a rotating assembly 4, a scattering assisting assembly 5 and a water feeding assembly 6; upright pole 1 is vertical to be set up and can dismantle the connection on the rail stake, rotates seat 2 and rotates through runner assembly 4 and connect on upright pole 1, send water subassembly 6 can provide the water source to spray set 3.

Referring to fig. 1 and 2, the vertical rod 1 comprises a transverse section 11, a vertical section 12 and a telescopic cylinder 13, the vertical rod 1 is hollow, the top wall and the bottom wall are both sealed, the transverse section 11 is perpendicular to the vertical section 12, one end of the transverse section 11 is hinged to the top wall of the vertical section 12, a hinge shaft of the transverse section 11 is arranged at an inner corner of the vertical section 12, and the transverse section 11 and the vertical section 12 are connected in a bonding mode through an organ cover 14; telescopic cylinder 13 organism one end articulates on vertical section 12 lateral wall, and piston rod one end articulates on horizontal segment 11 lateral wall, and telescopic cylinder 13's articulated shaft and horizontal segment 11's articulated shaft are parallel to each other and equal horizontal perpendicular to horizontal segment 11 sets up.

In the process of spraying dust fall, the telescopic cylinder 13 drives the transverse section 11 to rotate, the transverse section 11 reciprocates along the vertical direction, and the spray is driven to a farther area to fall dust.

Referring to fig. 1, two groups of hoops 15 and a plurality of belts 16 are vertically arranged on the vertical section 12, and the two hoops 15 are respectively arranged near two ends of the vertical section 12; a hinged seat of the hoop 15 close to the bottom end of the vertical section 12 is welded on one side of the vertical section 12 far away from the transverse section 11, the hoop 15 is circular, is buckled on a fence pile on the peripheral side of a construction area and is fixed through a bolt on the hoop 15; the articulated seat of another clamp 15 is along vertical section 12 axial sliding connection on vertical section 12, and vertical section 12 is offered the articulated seat card that supplies to correspond clamp 15 and is established and gliding spout along vertical direction on being close to the week lateral wall on horizontal section 11 one side, and clamp 15 corresponds and sets up to the ellipse, fixes vertical section 12 and rail pile simultaneously. The belts 16 are uniformly distributed and fixed between the two hoops 15, and are sleeved on the vertical section 12 and the fence pile for fastening and fixing.

When the vertical section 12 is fixed, the height of the spraying assembly 3 is determined according to the construction area, the fixed height of the vertical section 12 is further adjusted, the clamp 15 at the bottom end of the vertical section 12 is fixed on the fence pile, and the other clamp 15 is slid to be close to the top end of the fence pile and fixed, so that the positioning of the vertical sections 12 with different heights is adapted; and then fixing the belt 16 between the two clamping hoops 15 on the fence pile for reinforcement, thereby realizing the fixation of the vertical section 12.

Referring to fig. 3, the rotating assembly 4 includes a second motor 41 and a driving gear 42, the rotating base 2 is axially vertical, and the rotating shaft is vertically and rotatably connected to one end of the horizontal section 11 far away from the vertical section 12; the outer side wall of the rotating seat 2 comprises a straight section 21 and an arc section 22, one end, far away from the vertical section 12, of the transverse section 11 is distributed along the vertical direction and welded with two connection lug sheets 43, one side of the arc section 22 extends into the space between the two connection lug sheets 43 and is rotatably connected with the two connection lug sheets 43 through a bearing, and the spraying assembly 3 is arranged on the straight section 21. The second motor 41 is axially vertical and fixed on the inner wall of the inner cavity of the transverse section 11 through a bolt, the driving gear 42 is coaxially connected on the output shaft of the second motor 41 in a key manner, and the circular arc section 22 is provided with a rotating tooth 44 meshed with the driving gear 42.

The spraying range of two adjacent high-altitude dust falling devices is determined according to a construction area, the reciprocating rotation range and angle of the rotating seat 2 are further determined, in the spraying process, the second motor 41 is started to drive the driving gear 42 to rotate, the rotating seat 2 meshed with the driving gear 42 is further driven to rotate in a reciprocating mode, and spraying of spraying assembly 3 is conducted in a certain area range to achieve spraying and dust falling.

Referring to fig. 3, the spray assembly 3 includes a spray frame 31, a first motor 32, a water tray 33, an atomizing nozzle 34 and a high-pressure pipe 35, the spray frame 31 is set to be an inverted "U" shape, the spray frame 31 is horizontally disposed, one end of an opening is welded on the straight section 21, the first motor 32 is horizontally embedded at the other end of the spray frame 31 in the axial direction, and one end of an output shaft of the first motor 32 faces the rotating base 2 and extends into the spray frame 31 to be rotatably connected with the spray frame 31. The water tray 33 is arranged in a hollow manner and is arranged as a truncated cone, and one end of the truncated cone with a smaller cross section area is coaxially welded at one end of the output shaft of the first motor 32. The high-pressure pipe 35 level sets up, and one end pass on rotating seat 2 and with send water assembly 6 intercommunication, the other end passes through rotary joint and water tray 33 inner chamber intercommunication and rotates with water tray 33 to be connected, and the internal diameter that the high-pressure pipe 35 is close to rotating seat 2 one end is greater than the internal diameter of the other end. The atomizing nozzles 34 are provided in plurality, distributed on the circumferential side wall of the water tray 33 along the circumferential direction of the water tray 33, and communicated with the inner cavity of the water tray 33.

Referring to fig. 1, the water supply assembly 6 includes a water supply pipe 61 and a high pressure pump 62, the water supply pipes 61 of the plurality of high-altitude dust settling devices are connected in series, the water supply pipe 61 is a hose, one end of the hose sequentially penetrates through the inner cavities of the vertical section 12 and the transverse section 11 and is communicated with the high pressure pipe 35 extending out of the rotating base 2, and the high pressure pump 62 is in flange communication with the other end of the water supply pipe 61.

Referring to fig. 1 and 2, the scattering assisting assembly 5 comprises an air blower 51 and a dust screen 52, the air blower 51 is fixed on the vertical section 12 through bolts, an air outlet of the air blower 51 is communicated with an inner cavity of the vertical section 12, a plurality of air outlets are formed in the peripheral side wall of one end, close to the construction area, of the vertical section 12, and a dust plug is installed at the air outlet.

The implementation principle of the high-altitude rotation dust falling technology in the embodiment of the application is as follows: when carrying out the dust fall to the construction region, install pole setting 1 on the peripheral rail stake of construction region in proper order to make water tray 33 towards construction one side, pole setting 1 is through the height of the adjustable dust device of demountable installation of vertical section 12, and then adjusts spraying range. Adjust and send water subassembly 6 for send water subassembly 6 to send the water that sprays to send into in the high-pressure pipe 35, rivers in the high-pressure pipe 35 follow high-pressure pipe 35 and get into water tray 33, follow the water tray 33 on a plurality of atomizer 34 blowout water smoke, start first motor 32 and drive water tray 33 and rotate, make atomizer 34 spun water smoke carry out the dust fall with the heliciform blowout. Telescopic cylinder 13 drives horizontal segment 11 along vertical direction reciprocating motion, and then drives the swing of spraying along vertical direction, and second motor 41 drives through driving gear 42 and commentaries on classics tooth 44 and rotates seat 2 and rotate, realizes the swing of spraying in the horizontal direction, and then enlarges the coverage area of spraying, strengthens the dust fall effect in the water smoke coverage area.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.