1. A dust-absorption type steel structure welding bead grinding machine is characterized by comprising a grinding rack (1), a dust collector (2) arranged on the grinding rack (1), a suction nozzle (3) arranged on the grinding rack (1) and connected out of the dust collector (2), a grinding wheel (4) arranged on the grinding rack (1) and positioned in the suction nozzle (3), and a power mechanism arranged on the grinding rack (1) and connected with the grinding wheel (4) and used for driving the grinding wheel (4) to run; the power mechanism comprises a driving motor (5) arranged on the grinding rack (1) and a transmission mechanism (8) connected between the grinding wheel (4) and the driving motor (5).

2. A dust-absorbable type steel structure weld bead grinding machine according to claim 1, characterized in that the grinding wheel (4) comprises a rotating shaft (6) mounted on the grinding machine frame (1) and a grinding wheel sheet (7) mounted on the rotating shaft (6), and the driving motor (5) is connected with the rotating shaft (6) through a transmission mechanism (8).

3. A dust-absorbable type steel structure weld bead polisher according to claim 2 characterized in that the rotating shaft (6) is arranged on the suction nozzle (3) in a penetrating manner, and the suction nozzle (3) is mounted on the polisher frame (1) through the rotating shaft (6).

4. A dust-absorbable type steel structure weld bead grinding machine according to claim 3, characterized in that the lower part of the grinding wheel (7) extends from the suction nozzle (3) and contacts with the steel plate (10) to be ground, and the distance between the suction nozzle (3) and the steel plate (10) to be ground is 2-10 mm.

5. A dust-absorbable steel-structured weld bead grinding machine according to claim 1, wherein the grinding machine frame (1) is a flat plate which is obliquely arranged at an angle with the ground surface of the ground steel plate (10), and the angle between the flat plate and the ground surface of the ground steel plate (10) is 15-30 °.

6. A dust-absorbable steel structure weld bead grinding machine according to claim 5, characterized in that the bottom surface of the flat plate is provided with rollers (9) matched with the grinding wheel (4), and the grinding machine frame (1) is respectively contacted with the steel plate (10) to be ground through the grinding wheel (4) and the rollers (9).

7. A dust-absorbable type steel structural bead grinding machine according to claim 6, wherein the rollers (9) are arranged side by side, and the ground steel plate (10) forms an isosceles triangle with the line between the grinding wheel (4) and the contact point between the two rollers (9).

8. A dust-absorbable steel structure weld bead grinding machine according to claim 5, characterized in that the flat plate is provided with a handle (11).

9. A dust absorbable type steel structure weld bead grinding machine according to claim 1, characterized in that, it further comprises a hose (12), the suction nozzle (3) is connected from the dust collector (2) through the hose (12).

10. A dust absorbable type steel structure weld bead grinding machine according to claim 1, characterized in that the transmission mechanism (8) is a transmission belt connected between the grinding wheel (4) and the driving motor (5).

Background

In the steel structure course of working, often will weld on the steel sheet surface of steel construction, in order not to influence the welding seam quality in welding process, need polish in advance with guaranteeing the welding seam quality to the welding bead surface on steel sheet surface of steel construction. Because objects such as priming paint and dust often exist on steel structure steel sheet surface, can produce a lot of dusts at the in-process of polishing to the welding track surface, can cause the pollution to the environment to the produced dust of welding track surface polishing in-process, still can influence the operating personnel's of polishing healthy simultaneously, make the operating personnel of polishing easily produce occupational disease.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a dust-absorbing type steel structure welding bead grinding machine, which absorbs and collects most of the generated dust in the process of grinding the welding bead surface on the steel structure steel plate surface to reduce the pollution of the dust to the environment and reduce the occupational disease probability of the grinding operators.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: a dust-absorbing type steel structure welding bead grinding machine is provided to solve at least some technical problems.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a dust-absorption type steel structure weld bead polisher comprises a polishing rack, a dust collector arranged on the polishing rack, a suction nozzle arranged on the polishing rack and connected out of the dust collector, a polishing grinding wheel arranged on the polishing rack and located in the suction nozzle, and a power mechanism arranged on the polishing rack and connected with the polishing grinding wheel and used for driving the polishing grinding wheel to run; the power mechanism comprises a driving motor arranged on the grinding rack and a transmission mechanism connected between the grinding wheel and the driving motor.

Furthermore, the grinding wheel comprises a rotating shaft arranged on the grinding rack and a grinding wheel piece arranged on the rotating shaft, and the driving motor is connected with the rotating shaft through a transmission mechanism.

Furthermore, the rotating shaft penetrates through the suction nozzle, and the suction nozzle is installed on the polishing rack through the rotating shaft.

Furthermore, the lower part of the grinding wheel extends out of the suction nozzle and is in contact with the steel plate to be polished, and the distance between the suction nozzle and the steel plate to be polished is 2-10 mm.

Furthermore, the grinding rack is a flat plate which is obliquely distributed at a certain included angle with the ground surface of the ground steel plate, and the included angle between the flat plate and the ground surface of the ground steel plate is 15-30 degrees.

Furthermore, the bottom surface of the flat plate is provided with a roller matched with a grinding wheel, and the grinding rack is respectively contacted with the steel plate to be ground through the grinding wheel and the roller.

Furthermore, the rollers are arranged side by side, and the polished steel plates respectively form an isosceles triangle with a connecting line between contact points between the polishing grinding wheel and the two rollers.

Furthermore, a handle is arranged on the flat plate.

Furthermore, the vacuum cleaner also comprises a hose, and the suction nozzle is connected out of the vacuum cleaner through the hose.

Further, the transmission mechanism is a transmission belt connected between the grinding wheel and the driving motor.

Compared with the prior art, the invention has the following beneficial effects:

the dust collector has the advantages of simple structure, scientific and reasonable design and convenient use, and can absorb most of generated dust into the dust collector when the surface of a weld bead on the surface of a polished steel plate is polished, thereby effectively reducing the pollution of the dust to the environment and reducing the occurrence probability of occupational diseases of polishing operators.

The invention mainly comprises a grinding rack, a dust collector, a suction nozzle, a grinding wheel and a power mechanism, wherein the dust collector, the suction nozzle, the grinding wheel and the power mechanism are arranged on the grinding rack, the power mechanism comprises a driving motor and a transmission mechanism, the suction nozzle is connected out of the dust collector, and the grinding wheel is positioned in the suction nozzle. During the use, to polish the frame and put on the steel sheet of being polished, make the emery wheel of polishing move along the welding bead on the steel sheet of being polished, in-process driving motor passes through drive mechanism drive emery wheel of polishing operation in order to polish to the steel sheet of being polished welding bead, and simultaneously, the dust catcher operation will polish in the emery wheel of polishing is polished the produced dust suction dust catcher of welding bead on the steel sheet of being polished through the suction nozzle, can effectively alleviate the pollution that the dust caused to the environment, and reduce the emergence probability of polishing operating personnel occupational disease.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a view from the direction a of the suction nozzle in fig. 1.

Fig. 3 is an enlarged view of the suction nozzle and the sanding wheel of the present invention (S in the figure is the distance between the bottom of the suction nozzle and the steel plate to be sanded, and S is 2-10 mm).

Wherein, the names corresponding to the reference numbers are:

1-grinding machine frame, 2-dust collector, 3-suction nozzle, 4-grinding wheel, 5-driving motor, 6-rotating shaft, 7-grinding wheel, 8-driving mechanism, 9-roller, 10-steel plate to be ground, 11-handle and 12-hose.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. 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 embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and thus, it should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; of course, mechanical connection and electrical connection are also possible; alternatively, they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

As shown in fig. 1-3, the dust-absorbing type steel structure welding bead polisher provided by the embodiment has a simple structure, is scientific and reasonable in design and convenient to use, and can absorb most of generated dust into a dust collector when polishing the surface of a welding bead on the surface of a polished steel plate, so that the pollution of the dust to the environment can be effectively reduced, and the occurrence probability of occupational diseases of polishing operators can be reduced. The dust-absorption type steel structure weld bead grinding machine comprises a grinding rack 1, a dust collector 2 arranged on the grinding rack 1, a suction nozzle 3 arranged on the grinding rack 1 and connected out of the dust collector 2, a grinding wheel 4 arranged on the grinding rack 1 and positioned in the suction nozzle 3, and a power mechanism arranged on the grinding rack 1 and connected with the grinding wheel 4 and used for driving the grinding wheel 4 to run; the power mechanism comprises a driving motor 5 arranged on the grinding rack 1 and a transmission mechanism 8 connected between the grinding wheel 4 and the driving motor 5.

The invention mainly comprises a grinding rack, a dust collector, a suction nozzle, a grinding wheel and a power mechanism, wherein the dust collector, the suction nozzle, the grinding wheel and the power mechanism are arranged on the grinding rack, the power mechanism comprises a driving motor and a transmission mechanism, the suction nozzle is connected out of the dust collector, and the grinding wheel is positioned in the suction nozzle. During the use, to polish the frame and put on the steel sheet of being polished, make the emery wheel of polishing move along the welding bead on the steel sheet of being polished, in-process driving motor passes through drive mechanism drive emery wheel of polishing operation in order to polish to the steel sheet of being polished welding bead, and simultaneously, the dust catcher operation will polish in the emery wheel of polishing is polished the produced dust suction dust catcher of welding bead on the steel sheet of being polished through the suction nozzle, can effectively alleviate the pollution that the dust caused to the environment, and reduce the emergence probability of polishing operating personnel occupational disease.

Example 2

As shown in fig. 1-3, the dust-collecting type steel structure weld bead grinding machine provided in this embodiment includes a grinding machine frame 1, a dust collector 2 disposed on the grinding machine frame 1, a suction nozzle 3 disposed on the grinding machine frame 1 and connected from the dust collector 2, a grinding wheel 4 disposed on the grinding machine frame 1 and located in the suction nozzle 3, and a power mechanism disposed on the grinding machine frame 1 and connected to the grinding wheel 4 for driving the grinding wheel 4 to operate; the power mechanism comprises a driving motor 5 arranged on the grinding rack 1 and a transmission mechanism 8 connected between the grinding wheel 4 and the driving motor 5. The grinding wheel 4 comprises a rotating shaft 6 arranged on the grinding rack 1 and a grinding wheel 7 arranged on the rotating shaft 6, and the driving motor 5 is connected with the rotating shaft 6 through a transmission mechanism 8.

This example gives the preferred structure of emery wheel 4 of polishing on the basis of example 1, emery wheel 4 of polishing includes pivot 6 and emery wheel piece 7, and pivot 6 passes through the bearing and the bearing frame is installed on frame 1 of polishing, and driving motor 5 drives pivot 6 through drive mechanism 8 and rotates, and emery wheel piece 7 rotates in step with pivot 6 and polishes in order to polish by the steel sheet upper weld bead of polishing, and compact structure is firm, and it is efficient to polish.

Example 3

As shown in fig. 1-3, the dust-collecting type steel structure weld bead grinding machine provided in this embodiment includes a grinding machine frame 1, a dust collector 2 disposed on the grinding machine frame 1, a suction nozzle 3 disposed on the grinding machine frame 1 and connected from the dust collector 2, a grinding wheel 4 disposed on the grinding machine frame 1 and located in the suction nozzle 3, and a power mechanism disposed on the grinding machine frame 1 and connected to the grinding wheel 4 for driving the grinding wheel 4 to operate; the power mechanism comprises a driving motor 5 arranged on the grinding rack 1 and a transmission mechanism 8 connected between the grinding wheel 4 and the driving motor 5. The grinding wheel 4 comprises a rotating shaft 6 arranged on the grinding rack 1 and a grinding wheel 7 arranged on the rotating shaft 6, and the driving motor 5 is connected with the rotating shaft 6 through a transmission mechanism 8. The rotating shaft 6 penetrates through the suction nozzle 3, and the suction nozzle 3 is installed on the polishing rack 1 through the rotating shaft 6.

This example shows a specific connection structure between the suction nozzle 3 and the grinding machine frame 1 on the basis of the example 2, the suction nozzle 3 is installed on the grinding machine frame 1 through the rotating shaft 6, so that the suction nozzle 3 and the grinding wheel 4 are integrated, and the structure is compact, stable, simple and reliable.

Example 4

As shown in fig. 1-3, the dust-collecting type steel structure weld bead grinding machine provided in this embodiment includes a grinding machine frame 1, a dust collector 2 disposed on the grinding machine frame 1, a suction nozzle 3 disposed on the grinding machine frame 1 and connected from the dust collector 2, a grinding wheel 4 disposed on the grinding machine frame 1 and located in the suction nozzle 3, and a power mechanism disposed on the grinding machine frame 1 and connected to the grinding wheel 4 for driving the grinding wheel 4 to operate; the power mechanism comprises a driving motor 5 arranged on the grinding rack 1 and a transmission mechanism 8 connected between the grinding wheel 4 and the driving motor 5. The grinding wheel 4 comprises a rotating shaft 6 arranged on the grinding rack 1 and a grinding wheel 7 arranged on the rotating shaft 6, and the driving motor 5 is connected with the rotating shaft 6 through a transmission mechanism 8. The rotating shaft 6 penetrates through the suction nozzle 3, and the suction nozzle 3 is installed on the polishing rack 1 through the rotating shaft 6. The lower part of the grinding wheel 7 extends out of the suction nozzle 3 and is in contact with the polished steel plate 10, and the distance between the suction nozzle 3 and the polished steel plate 10 is 2-10 mm.

This example is on the basis of example 3, further to suction nozzle 3, the structure between grinding wheel 4 and the frame 1 of polishing has been injectd, 7 lower parts of emery wheel stretch out from suction nozzle 3 and contact with by the steel sheet 10 of polishing, and suction nozzle 3 with by the interval between the steel sheet 10 of polishing be 2 ~ 10mm, so, can be on 7 welding bead go up the basis of fully polishing by the steel sheet 10 of polishing of emery wheel, furthest guarantees that grinding wheel 4 passes through suction nozzle 3 by dust catcher 2 and absorbs when polishing by the steel sheet 10 of polishing the welding bead, can effectively alleviate the pollution that the dust caused the environment, and reduce the emergence probability of the operating personnel occupational disease of polishing.

Example 5

As shown in fig. 1-3, the dust-collecting type steel structure weld bead grinding machine provided in this embodiment includes a grinding machine frame 1, a dust collector 2 disposed on the grinding machine frame 1, a suction nozzle 3 disposed on the grinding machine frame 1 and connected from the dust collector 2, a grinding wheel 4 disposed on the grinding machine frame 1 and located in the suction nozzle 3, and a power mechanism disposed on the grinding machine frame 1 and connected to the grinding wheel 4 for driving the grinding wheel 4 to operate; the power mechanism comprises a driving motor 5 arranged on the grinding rack 1 and a transmission mechanism 8 connected between the grinding wheel 4 and the driving motor 5. The grinding rack 1 is a flat plate which is obliquely distributed at a certain included angle with the ground surface of the ground steel plate 10, and the included angle between the flat plate and the ground surface of the ground steel plate 10 is 15-30 degrees.

This example gives the preferred structure of the frame of polishing 1 on the basis of example 1, and frame of polishing 1 is the dull and stereotyped that becomes certain contained angle slope distribution with the face of being polished of the steel sheet 10 that is polished, and dull and stereotyped and the face of being polished of the steel sheet 10 that polishes become the contained angle between 15-30, so set up, make things convenient for the operating personnel of polishing to carry out the operation of polishing more.

Example 6

As shown in fig. 1-3, the dust-collecting type steel structure weld bead grinding machine provided in this embodiment includes a grinding machine frame 1, a dust collector 2 disposed on the grinding machine frame 1, a suction nozzle 3 disposed on the grinding machine frame 1 and connected from the dust collector 2, a grinding wheel 4 disposed on the grinding machine frame 1 and located in the suction nozzle 3, and a power mechanism disposed on the grinding machine frame 1 and connected to the grinding wheel 4 for driving the grinding wheel 4 to operate; the power mechanism comprises a driving motor 5 arranged on the grinding rack 1 and a transmission mechanism 8 connected between the grinding wheel 4 and the driving motor 5. The grinding rack 1 is a flat plate which is obliquely distributed at a certain included angle with the ground surface of the ground steel plate 10, and the included angle between the flat plate and the ground surface of the ground steel plate 10 is 15-30 degrees. The bottom surface of the flat plate is provided with a roller 9 matched with the grinding wheel 4, and the grinding rack 1 is respectively contacted with a steel plate 10 to be ground through the grinding wheel 4 and the roller 9.

This example is on the basis of example 5, has further optimized the structure of frame 1 of polishing, and dull and stereotyped bottom surface is equipped with the gyro wheel 9 with 4 looks adaptations of emery wheel of polishing, and frame 1 of polishing respectively with by the steel sheet 10 contact of polishing through emery wheel 4 and gyro wheel 9, through the contact of gyro wheel 9 cooperation emery wheel 4 common with by the steel sheet 10 contact of polishing, can guarantee emery wheel 4 of polishing and smooth operation on by the steel sheet 10 of polishing, guarantee the quality of polishing.

Example 7

As shown in fig. 1-3, the dust-collecting type steel structure weld bead grinding machine provided in this embodiment includes a grinding machine frame 1, a dust collector 2 disposed on the grinding machine frame 1, a suction nozzle 3 disposed on the grinding machine frame 1 and connected from the dust collector 2, a grinding wheel 4 disposed on the grinding machine frame 1 and located in the suction nozzle 3, and a power mechanism disposed on the grinding machine frame 1 and connected to the grinding wheel 4 for driving the grinding wheel 4 to operate; the power mechanism comprises a driving motor 5 arranged on the grinding rack 1 and a transmission mechanism 8 connected between the grinding wheel 4 and the driving motor 5. The grinding rack 1 is a flat plate which is obliquely distributed at a certain included angle with the ground surface of the ground steel plate 10, and the included angle between the flat plate and the ground surface of the ground steel plate 10 is 15-30 degrees. The bottom surface of the flat plate is provided with a roller 9 matched with the grinding wheel 4, and the grinding rack 1 is respectively contacted with a steel plate 10 to be ground through the grinding wheel 4 and the roller 9. The rollers 9 are distributed side by side, and the polished steel plates 10 respectively form an isosceles triangle with a connecting line between contact points between the polishing grinding wheel 4 and the two rollers 9.

This example has further optimized the structure of grinding frame 1 on the basis of example 6, and the gyro wheel 9 on the grinding frame 1 has two, and two gyro wheels 9 distribute side by side, are ground steel sheet 10 and are formed an isosceles triangle with the line between the contact point between grinding wheel 4 and two gyro wheels 9 respectively, and the line between the contact point of two gyro wheels 9 is isosceles triangle's base, so the design, can further guarantee that grinding wheel 4 is smooth operation on being ground steel sheet 10, guarantees the quality of polishing. Meanwhile, the included angle formed between the flat plate and the polished surface of the polishing steel plate 10 can be controlled by the diameter of the grinding wheel 7 in the polishing grinding wheel 4 and the diameter of the roller 9, and the included angle is preferably 15-30 degrees.

Example 8

As shown in fig. 1-3, the dust-collecting type steel structure weld bead grinding machine provided in this embodiment includes a grinding machine frame 1, a dust collector 2 disposed on the grinding machine frame 1, a suction nozzle 3 disposed on the grinding machine frame 1 and connected from the dust collector 2, a grinding wheel 4 disposed on the grinding machine frame 1 and located in the suction nozzle 3, and a power mechanism disposed on the grinding machine frame 1 and connected to the grinding wheel 4 for driving the grinding wheel 4 to operate; the power mechanism comprises a driving motor 5 arranged on the grinding rack 1 and a transmission mechanism 8 connected between the grinding wheel 4 and the driving motor 5. The grinding rack 1 is a flat plate which is obliquely distributed at a certain included angle with the ground surface of the ground steel plate 10, and the included angle between the flat plate and the ground surface of the ground steel plate 10 is 15-30 degrees. The flat plate is provided with a handle 11.

This example further optimized the structure of machine frame 1 on the basis of example 5, be equipped with handle 11 on the flat board, the operator of polishing can promote machine frame 1 through handle 11 and make machine frame 1 of polishing move on being polished steel sheet 10 through emery wheel 4 and gyro wheel 9 of polishing, so design, made things convenient for the operator of polishing to polish and carried out the operation.

Example 9

As shown in fig. 1-3, the dust-collecting type steel structure weld bead grinding machine provided in this embodiment includes a grinding machine frame 1, a dust collector 2 disposed on the grinding machine frame 1, a suction nozzle 3 disposed on the grinding machine frame 1 and connected from the dust collector 2, a grinding wheel 4 disposed on the grinding machine frame 1 and located in the suction nozzle 3, and a power mechanism disposed on the grinding machine frame 1 and connected to the grinding wheel 4 for driving the grinding wheel 4 to operate; the power mechanism comprises a driving motor 5 arranged on the grinding rack 1 and a transmission mechanism 8 connected between the grinding wheel 4 and the driving motor 5. And a hose 12, through which hose 12 the suction nozzle 3 is connected to the cleaner 2.

This example shows a preferred connection structure between the suction nozzle 3 and the vacuum cleaner 2 on the basis of example 1, the suction nozzle 3 is connected from the vacuum cleaner 2 through the hose 12, and the suction nozzle 3 is connected with the vacuum cleaner 2 through the flexible hose 12, so as to avoid the problem that the rigid connection hinders the difficult positioning between the suction nozzle 3 and the vacuum cleaner 2 during the connection, and simultaneously facilitate the disassembly and assembly between the suction nozzle 3 and the vacuum cleaner 2.

Example 10

As shown in fig. 1-3, the dust-collecting type steel structure weld bead grinding machine provided in this embodiment includes a grinding machine frame 1, a dust collector 2 disposed on the grinding machine frame 1, a suction nozzle 3 disposed on the grinding machine frame 1 and connected from the dust collector 2, a grinding wheel 4 disposed on the grinding machine frame 1 and located in the suction nozzle 3, and a power mechanism disposed on the grinding machine frame 1 and connected to the grinding wheel 4 for driving the grinding wheel 4 to operate; the power mechanism comprises a driving motor 5 arranged on the grinding rack 1 and a transmission mechanism 8 connected between the grinding wheel 4 and the driving motor 5. The transmission mechanism 8 is a transmission belt connected between the grinding wheel 4 and the driving motor 5.

This example shows a preferable connection structure of the transmission mechanism 8 on the basis of example 1, and the transmission mechanism 8 is a transmission belt connected between the grinding wheel 4 and the drive motor 5. The transmission belt has the advantages of high cost performance, convenient assembly and disassembly, simple structure, simple and easily obtained raw material source and good stability.

The cross section of the suction nozzle 3 is designed to be as small as possible, so that the dust collector can absorb dust with higher force.

According to the invention, the grinding wheel and the dust collector are creatively combined on the grinding rack, the grinding wheel is arranged in the suction nozzle of the dust collector, and generated dust is sucked while grinding, so that the pollution to the environment and the probability of occupational diseases of grinding personnel are reduced. The dust-removing device is simple and practical in structure, can reduce the emission of dust, and reduces the pollution to the environment and the probability of occupational diseases of polishing personnel.

Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, but not to limit the technical solutions, and certainly not to limit the patent scope of the present invention; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; that is, the technical problems to be solved by the present invention, which are not substantially changed or supplemented by the spirit and the concept of the main body of the present invention, are still consistent with the present invention and shall be included in the scope of the present invention; in addition, the technical scheme of the invention is directly or indirectly applied to other related technical fields, and the technical scheme is included in the patent protection scope of the invention.